Filled Copper Teflon PTFE Tube

PTFE Tube Features: PTFE TUBE working temperature:-55~+260°C;PTFE TUBE Electric insulation; good dielectric in mediums;PTFE TUBE filled ptfe tube products(plastic tube pipe) Made of high-speed mixing polytetrafluoroethylene resin and certain filling resin;PTFE TUBE Soft and formable, outstanding Chemical properties etc.

(1) PTFE TUBE Anti-corrosion in all kinds of chemicals including nitric acid & aqua fortis.

(2) PTFE TUBE Characteristics: Low friction, Virtually no lubrication requirement, Light weight, Resistant to corrosion and abrasion, Impact resistance, Stable chemical properties, Oil resistance, High temperature resistance, Low temperature resistance, water resistance and so on.

(3) PTFE TUBE working temperature:-55~+260°C.

(4) PTFE TUBE Electric insulation; good dielectric in mediums.

(5) PTFE TUBE filled ptfe tube products(plastic tube pipe) Made of high-speed mixing polytetrafluoroethylene resin and certain filling resin

(6) PTFE TUBE Soft and formable, outstanding Chemical properties etc.

More Details:https://www.sukoptfe.com/tube-pipe/filled-copper-teflon-ptfe-tube

Moly Filled PTFE Molding Tubing

Virgin PTFE is capable in its own right, but when mineral fillers, such as molybdenum sulfide, are added, it enhances the material wear and deformation characteristics to more fully exploit their unique combination of chemical, physical and electrical properties.

Molybdenum Disulfide (PTFE-MoS2): Added in various amounts (5% to 15%), increases hardness, stiffness, and wear; minimal effect on chemical and electrical properties.

APPLICATIONS:Slide covers;Bearings, bushings.

ADVANTAGES:Good sliding and wear characteristics;Low cold flow;Good thermal conductivity;Low coefficient of friction;Reduced chemical resistance;High pressure resistance

Can ptfe be used on gas?

When connecting gas pipelines and their fittings to a stove, grill or other connection, it is important to use Teflon tape designed for gas connections and not Teflon tape designed for water pipes. Teflon tape seals the gas fittings' threads and keeps leaks from developing. The Teflon tape for gas fittings is available at hardware, home improvement and plumbing supply stores.

Teflon tape for gas fittings, also known as gas-rated Teflon tape, is yellow in color and clearly states it is for gas lines and connections. The tape works on all gas line types, including butane, propane and natural gas lines. 

Apply gas-rated Teflon tape only to the fittings' threads. Do not apply the tape to gas compression connections, the removable nuts and bolts used to connect two gas pipes together. Gas fittings are on the ends of gas lines and are not removable. Turn off all gas connections at the gas meter outside your home or business before disconnecting or attaching gas lines to appliances.

After applying the tape, connecting your gas lines and turning the gas back on, mix 2 teaspoons dishwashing liquid and 1 cup of water in a pot. Dip a cloth or rag in the soap solution and swab the solution on the gas fitting. If you see bubbles forming on the fitting, you have a gas leak. Immediately turn off the gas source and tighten the gas fitting. Then turn the gas back on and test the fitting again. If the solution is still bubbling, turn off the gas, disconnect the fitting and check the fitting for dirt, debris or damage. Clean the fitting thoroughly, and reapply gas-rated Teflon tape. Repeat the testing process. Have a professional replace the gas line if the soap solution continues to bubble.

If you use plumber's Teflon tape on gas pipe fittings, the tape will degrade over time and gas vapors will escape from the fitting. Plumber's Teflon is white in color and thinner than yellow gas-rated Teflon tape. Leaking gas pipes and fittings are dangerous and can cause an explosion. If you are uncomfortable applying gas-rated Teflon tape to gas fittings, contact a plumber or repairman specializing in gas connections and repairs to complete the gas pipe installation or repair.

Source:https://www.sukoptfe.com/can-ptfe-be-used-on-gas

PTFE Filter Film

Performance:(1) Resist strong acid and weak alkali.(2) It's stable to thick abio-acid in low temperature,not dissolved in organic acid,but can be dissolved in thick vitriol and heated cresol.(3) It's easily hydrolyzed in strong alkali.(4) The temperature used within 120ºCand the instant temperature can be up to 150ºC.

PTFE filter films take advantage of the fibril-nod feature of PTFE and through push press, extension press, de-binding, high-temperature stretching and shape fixing so the products with smooth surface, chemical resistance, breathable windproof), flame retardant, high-temperature resistance, strong acid & alkali resistance and non-toxicity. 

Their aperture diameters, thickness and porosities can be adjusted in stretching according to different demands. The products can be applied on surfaces of all kinds of filtration materials after compound processing, and it can be reached 99.99% filtration effect, with high filtering speed, long using life, recycle working. 

It is mainly used in dust filtration for industrial boilers in many industries such as chemical industry, steel, melting, carbon black, power generation, cement and waste burning.

Technical Parameters:           

• Thickness: 5-10um
• Width: 1000mm-2600mm
• Aperture diameter: 0.5-1um          
• Air permeability:30-120L/m2.s (127pa pressure difference)
• Porosity: 80-97%
• emperature resistance: -150℃-300℃

Applications:Dust collector or liquid-solid separation. Mainly used in food and beverage industry,pharmaceutical industry, non-ferrous metallurgy, chemical plant, building section and mining industry,etc, for the equipment of filter presses, centrifuge filters, vacuum filters,belt filter presses, etc.

Can PTFE be recycled?

PTFE (Polytetrafluoroethylene) plastics are generally opaque, and are an excellent barrier to gas, moisture, and resistance to heat. PTFE shows a remarkable chemical resistance and it is insoluble in all known solvents. It is attacked only by molten alkali metals and fluorine at high temperatures. PTFE has excellent resistance to acids, alkalis and solvents. It is very lubricous, with the lowest coefficient of any polymer. The chemically inert plastic is easy to clean and has exceptional mechanical resistance under extreme conditions. In addition, PTFE is autoclavable and non-flammable.

PTFE does not have it's own recycling code symbol. However, PTFE can be recycled into many other products. Recycled PTFE can be used for rods, tubing, tape and more. 

Polytetrafluoroethylene (PTFE) is a synthetic material accidentally invented in the late 1930s. It was when a chemist was trying to develop a new type of perfluorethylene-based refrigerant. Rather than achieving a chlorofluorocarbon, the scientist found that the perfluorethylene used in the process reacted with the iron content of its container and polymerized under pressure.

This new material was distributed on a commercial scale and was eventually known as PTFE. After several decades later, it was known as the first non-stick kitchenware.

Where is PTFE is used?

It is used for applications where sliding parts are needed like plain bearings, gears, and slide plates.
Powdered PTFE is used in pyrotechnic compositions as oxidizers together with powdered metals.
PTFE is also used in optical radiometry. Sheets made from PTFE are used as measuring heads in spectroradiometers and broadband radiometers because of its capability to diffuse a transmitting light nearly perfectly.
PTFE is also used to coat certain types of hardened bullets to prevent the increased wear on the firearm’s rifling that would result from the harder projectile.
It is also used laboratory materials such as containers, stirrers, and tubing.
It is used as a thread seal tape in plumbing applications.

Why is PTFE used in electronic components?

PTFE has exceptional insulating properties that make it ideal for electronic components. It is non-conductive, meaning; it is resistant to high electric fields. It is also resistant to heat, water, and chemical corrosion. It is also used on producing laboratory equipment and accessories that come into contact with hydrofluoric acid.

PTFE possess a very low frictional property. This makes PTFE suitable for manufacturing parts that need to resist friction like ball bearings and gears.

Other characteristics of PTFE

• * an excellent barrier to gas, moisture and heat
• * has remarkable chemical resistance and is insoluble in all known solvents
• * attacked only by molten alkali metals and fluorine at high temperatures
• * has excellent resistance to acids, alkali and solvents
• * very lubricous
• * can be sterilized by autoclave, gas, dry heat and chemical disinfectant
• * Disadvantages of using PTFE

One of the most common uses of PTFE is for cookware. PTFE pans cannot be used if you see scratches or cracks on it. It cannot be used after it deteriorates. It begins to deteriorate after the temperature of the cookware reaches 260 ˚C and decomposes above 350˚C. This degradation by-product can be lethal to birds and can cause flu-like symptoms in humans.

Issues in recycling PTFE

Like any other materials, recycling decreased the properties of the original material. In PTFE, many of its properties are good that it is still feasible after recycling. In some studies, 5-10% ration would still allow the material to pass off as pure PTFE. One of the main issues with recycled PTFE is that it is not applicable for long term uses.

But, to sum it all up, recycled PTFE will always have inferior properties to PTFE and cannot be consistent over time. It is always better to expect that it can be compromised and that it is priced a little lower than the original.

Source:https://www.sukoptfe.com/can-ptfe-be-recycled

Is ptfe safe?

While cookware using polytetrafluoroethylene (PTFE) has been around since the 1960s, its safety has become the subject of debate in recent years. The majority of the discussion has revolved around a substance called perfluorooctanoic acid, or PFOA. This acid is used in the production of many fluoropolymers, including PTFE.

In 2003, the Environmental Working Group petitioned the U.S. Consumer Product Safety Commission (CPSC) to put labels on PTFE-coated cookware to warn of potential safety concerns for both pet birds and humans. The petition cited multiple cases of bird deaths due to fumes from PTFE nonstick coatings along with two specific incidents of polymer fume fever -- temporary flulike symptoms -- in humans. After review, the U.S. Consumer Product Safety Commission denied the Environmental Working Group's petition to require warning labels on PTFE-based nonstick cookware.

In January 2005, the U.S. Environmental Protection Agency released a draft risk assessment on the health effects of PFOA. The EPA's Office of Pollution Prevention and Toxics formed a Science Advisory Board to review the draft's findings. According to the review letter, three-fourths of the panel found that PFOA fit the EPA's guidelines for a "likely to be carcinogenic" substance. But while the EPA is continuing to study PFOA's effects on humans and the environment and has a program to eliminate PFOA and related chemical emissions and products by 2015, its current stand is that there is no reason for consumers to stop using PTFE-based nonstick cookware . The final product is PTFE -- not PFOA.

Even though the CPSC and the EPA haven't determined a need for warning labels on nonstick cookware or pulled it from the market, it's still a good idea to follow a few guidelines in the kitchen. First, as DuPont -- maker Teflon, one of the best known nonstick cookware brands -- points out on its Web site, birds have delicate respiratory systems that can be affected by any fumes, not just those from nonstick cookware. For this reason, it's a good idea to keep birds out of the kitchen. Second, don't heat PFTE-coated pans beyond 500 degrees Fahrenheit (260 degrees Celsius) or leave them unattended. It's also a good idea to replace your pans if their coatings are visibly deteriorating.

Source:https://www.sukoptfe.com/is-ptfe-safe

How to use PTFE tape

Teflon tape is a specialized type of tape used in plumbing to seal connections thoroughly, ensuring that pipes will not leak. This tape is also referred to as poly(tetrafluoroethylene) (PTFE) tape, with Teflon being a trademark of the DuPont company. 

PTFE is a very interesting substance. From a plumbing point of view, it's important to note that it is very flexible and that it has immense tensile strength. When Teflon tape is used to wrap the threads of a pipe, the tape acts almost like putty, filling the space and preventing leakage. While it is possible to use plumbing putty for tasks like this, Teflon tape is quicker and easier, and often much neater, as well. 

Typically, PTFE tape is white, because this is the natural color of the substance. Some companies make color coded PTFE tape, with different colors being designed for different types of plumbing. The Teflon tape used for gas plumbing, for example, is thicker to prevent gas leaks, and it may be coded blue or yellow. The tape is not adhesive, tending to cling with pressure but being easy to move and reposition. 

This tape is designed for use in pipes with tapered threads. Tapered pipes are ideal for making a tight seal because the tapered design creates a wedge effect, sealing the pipe neatly so that nothing can leak out. To use the tape, a length is wrapped around the male or threaded end of the pipe, and then the female end of the pipe is connected. It is important to make sure that the Teflon tape does not overlap with the end of the pipe, as this can cause problems in the future, because the tape may block the pipe. 

Teflon tape is a very useful thing to keep around the house. Even if a plumber will be consulted to fix a problem, the tape can be used for a quick fix to keep things contained until the plumber arrives. People should be very careful around gas plumbing, as gas leaks can be quite dangerous, and they need to be handled by professionals. If a gas leak is suspected, the gas should be turned off and a gas professional should be called immediately.

How PTFE Works

Otherwise known as thread seal tape, PTFE tape is used on the male end of pipes (known as threads) before they are connected to other pipes. The film is made from polytetrafluoroethylene (PTFE), a synthetic better known as Teflon. Because this substance is impermeable and malleable, it forms into a putty-like substance after it is wrapped around pipe threads and screwed into other pipes. The friction caused by screwing the pipes together activates the thread tape, creating an airtight seal and ensures that the pipes are properly jointed.

PTFE tape only works on tapered threads as opposed to parallel threads. This is because the tape works off of the friction created by tapered threads. Thread tape works as a sealant because it self lubricates as it is met with friction. Using too much PTFE tape can be harmful, as excess material can ooze out of the pipes, yielding exposed harmful chemicals.

Using PTFE Tape

An important aspect of PTFE tape is to make sure you use the right amount. The optimal amount is two times around the pipe in the opposite direction of the thread. If you find that you have incorrectly placed the thread tape and the pipe connection is crooked, you could find yourself with a difficult situation. The pipes could be too tight to unscrew. However, you may be able to fix this by removing the fixture that contains the pipe and sticking a screwdriver into the connection and pry it open.

Types of PTFE Tape

PTFE tape comes in a variety of colors, density and thickness. For the most basic plumbing projects, you will be able to use standard, white PTFE tape. However, for gas lines and more dangerous work, a more specialized type of thread tape may be necessary. The color of the tape doesn’t affect its performance, but may be selected based on the coloring of your pipe. There are standards in place that determine the classification of PTFE tape, taking into account factors such as width and density.

Source:https://www.sukoptfe.com/how-to-use-ptfe-tape

Filled PTFE Teflon Plastic Sheet

PTFE has excellent all-round properties performing well at both high and low temperatures, being corrosion-resistant, non-stick, self-lubricating and insulating. In addition, it has a low friction coefficient.

Thick:1",1/2",1.25",1.5",2",3/8" or Custom

Specifications:Glass Filled PTFE Skived Sheet with color pigment, which can be made based on customers' detailed requirement.

• 1. Normal thickness: below 3mm
• 2. Width: max 2500mm
• 3. Color: according to customer's requirements

Glass filled PTFE or Teflon is marked by its superior chemical resistance, excellent thermal and electrical insulation, a low coefficient of friction and a working temperature range of 400°F to 500°.

The glass fiber gives strengthens its machinability as compared to its virgin PTFE counterpart. It has a variety of applications including use in seals, insulators, and electrical parts, and is a better choice than nylon and acetal for plain bearings, gears and side plate.

PTFE is available in many different Grades as Virgin PTFE, Chemically Modified PTFE, Carbon Filled PTFE, Glass Filed PTFE, Carbon / Coke Filled PTFE, Graphite Filled PTFE, Bronze Filled PTFE, Bronze + Molybdenum Disulphide Filled PTFE, Aluminum Oxide Filled PTFE, Calcium Fluoride Filled PTFE, Stainless Steel Filled PTFE, Mica Filled PTFE, Glass + MoS2 Filled PTFE, MoS2 Filled PTFE, Chemically Modified PTFE etc.

The Filled grades of PTFE can be compounded & customized for specific service conditions & applications. Filled PTFE grades have specific properties improvement based on filler, type of filler & percentage of filler.

Contact:https://www.sukoptfe.com/index.php?route=information/contact

PTFE vs LDPE

Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene. It was the first grade of polyethylene, produced in 1933 by Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization. The EPA estimates 5.7% of LDPE is recycled. Despite competition from more modern polymers, LDPE continues to be an important plastic grade. 

LDPE is defined by a density range of 0.910–0.940 g/cm3. It is not reactive at room temperatures, except by strong oxidizing agents, and some solvents cause swelling. It can withstand temperatures of 80 °C continuously and 95 °C for a short time. Made in translucent or opaque variations, it is quite flexible and tough.

LDPE has more branching than HDPE, so its intermolecular forces are weaker, its tensile strength is lower, and its resilience is higher. Also, because its molecules are less tightly packed and less crystalline due to the side branches, its density is lower.

PTFE is a thermoplastic polymer, which is a white solid at room temperature, with a density of about 2200 kg/m3. According to DuPont, its melting point is 600 K (327 °C; 620 °F).[19] It maintains high strength, toughness and self-lubrication at low temperatures down to 5 K (−268.15 °C; −450.67 °F), and good flexibility at temperatures above 194 K (−79 °C; −110 °F). PTFE gains its properties from the aggregate effect of carbon-fluorine bonds, as do all fluorocarbons. The only chemicals known to affect these carbon-fluorine bonds are highly reactive metals like the alkali metals, and at higher temperatures also such metals as aluminium and magnesium, and fluorinating agents such as xenon difluoride and cobalt(III) fluoride.

​

Material Applications:

PTFE:Cabling solutions;Non lubricated bearings;O-rings;Seals;Capacitors;Semiconductor manufacturing;High temperature electrical parts;Gaskets;Valve components.

LDPE:Trays and general purpose containers;Corrosion-resistant work surfaces;Parts of computer hardware, such as hard disk drives, screen cards, and optical disc drives.

Material Properties

PTFE:Excellent dielectric properties;Inertness to most chemicals;High heat and chemical resistance;Very low coeffiecient of friction;Excellent radiation resistance;Zero moisture absorption;Relatively insensitive to power frequency;Machinability.

LDPE:Non-reactive at room temperatures;Can withstand temperatures of 80 °C continuously;Machinability.

Source:https://www.sukoptfe.com/ptfe-vs-ldpe

PTFE/Teflon Tube/Pipe

PTFE Tube by Extruded, Molded and Filled. Extruded ptfe tubing OD from 1mm to 300mm. Molded ptfe tubing from 30mm to 600mm.Filled ptfe( Filled graphite, Filled Fiber glass, Filled Bronze, Filled Carbon ), Size OD from 30mm to 600mm


teflon tube has many applications throughout industry. The unique properties allow the tubing to solve problems possible with no other material. Compared with similar polymers it normally has the bestprice/performance ratio.

1> PTFE Features -(teflon tube) teflon tube

o (1) Very high working temperatures.

o (2) Non-stick characteristics.

o (3) Low friction surface

o (4) Very high resistance to chemical and solvents.

o (5) Very high electrical resistance.

o (6) Bio-compatibility

o 2> Close Tolerances -(teflon tube) teflontube

o We specialise in making tubing to very close tolerancesfor medical, electronic, and instrument applications.

o 3> Ready Cut -(teflon tube) teflon tube

o Tubing can be supplied cut to any length in any quantity,and in particular we can supply cut straight lengths(i.e. no curvature).

o 4> Coloured Tubing -(teflon tube) teflontube

o All tubing can be made in fourteen different colours, andalso with coloured stripe.

o 5> Special Sizes -(teflon tube) teflon tube

o Virtually any size of tubing can be extruded from 0.1 mm dia meter to 150 mm dia meter.Sizes larger than this can also be made.

o 6> Microbore Tubing -(teflon tube) teflon tube

o 0 mm with a very thin wall of 0.1mm, Standard Stocked item.

o 7> Profiles -(teflon tube) teflon tube

What are PTFE gaskets

All Seals is a recognized leading converter of high quality PTFE gaskets, seals, washers and insulators. 

All Seals has experience in the providing of precision PTFE gaskets, seals, washers, and insulators for a wide range of industries and applications.  Polytetrafluoroethylene (PTFE) is DuPont's trademark of Teflon. It is a synthetic fluoropolymer of tetrafluoroethylene consisting completely of carbon and fluorine. It is innately hydrophobic (repelling water and water containing substances) and has one of the lowest coefficients of friction against any solid. 

PTFE has excellent dielectric properties and provides excellent thermal insulation with an operating temperature range of -400°F to 500°F. PTFE is the most chemically resistant plastic known and is unaffected by most corrosive liquids, vapors, and gases. PTFE is generally offered in thicknesses spanning from .002" to .250" thick and conforms to both FDA and AMS specifications, making it acceptable to both medical and food production industries. 

PTFE, Unfilled Teflon Gaskets

Virgin grade PTFE gaskets are made from 100% pure material which is used in most general applications. It is extremely soft and formable and is often used for chemical resistant seals and gaskets. It is made directly from the resin producer and has never been processed into a shape. It possesses the highest physical and electrical insulation properties and has increased resistance to creep (compression) under load. Virgin grade PTFE can be recognized by its whiter color compared to mechanical grade PTFE.

PTFE, Filled Teflon Gaskets

Filled PTFE gaskets are made from PTFE which integrates additives and fillers in order to improve the performance of the gasket. This improves the gaskets ability to wear and enhances its unique combination of chemical, physical and electrical properties. Filled Teflon is the most common type of PTFE gasket for industrial use as it exhibits improved mechanical strength compared to Virgin PTFE. Glass, carbon and fiber particles are typical fillers that are used to enhance the mechanical strength of the gasket depending on the application.

PTFE, Expanded Teflon Gaskets

Expanded PTFE gasket material is produced by expanding Virgin PTFE using a process that creates a uniform and highly fibrillated microstructure with equal tensile strength in all directions. This means that expanded Teflon possesses no structural weakness or a "grain". Since no additives are required, expanded Teflon also possesses the unique chemical resistance of Virgin Teflon. Expanded PTFE is much softer and more flexible than regular PTFE gaskets and thus conforms easily to irregular and rough surfaces. The material is easier to compress and minimizes creep and cold flow.

Source:https://www.sukoptfe.com/what-are-ptfe-gaskets

Teflon Products

Teflon is used as a trade name for a few other polymers with similar composition, such as ethylene propylene (FEP) and perfluoroalkoxy resin (PFA) The properties of these polymers are similar to those of Teflon.

FEP
FEP is softer than Teflon and is very transparent and resistant to sunlight. It is more formable than Teflon. It has an extremely low coefficient of friction and high resistance to heat. It can be used for welding, heat-sealing, and thermoforming. It is used in the design and manufacture of thermoplastics with low frictional characteristics. FEP nonstick coatings are popularly used for coating of containers used in industrial baking. FEP exists in both water-based liquid form and powder form.

to view the properties of FEP.

PFA
PFA is nonreactive in nature and has a low coefficient of friction. PFA is also used for coating industrial bake wares. However, the performance characteristics of PFA are much better than those of FEP because PFA can withstand high temperatures for a longer duration of time. In addition, it has greater toughness than both FEP and Teflon. PFA exists in powder and liquid form.

to view the properties of PFA.

Tefzel or ETFE
ETFE is a copolymer of ethylene and tetrafluoroethylene. Its commercial name is Tefzel. The molecular structure of ETFE is slightly different from that of Teflon. In Teflon, all hydrogen atoms are replaced by fluorine while in ETFE, a smaller number of hydrogen molecules are replaced. 

Source:https://www.sukoptfe.com/teflon-products

PTFE vs MPTFE (Modified PTFE)

PTFE and TFM are used for bellows in extreme corrosion resistance applications – specifically organic compounds, acids, and salts – as well as high temperature and high purity applications.  They both exhibit non-stick behavior, and have a similar wide range of usage temperatures.   However, there are significant differences between them, namely because TFM combines the best characteristics of both PTFE and PFA.  TFM is the bellows material of choice when you need extremely low gas permeation, a longer fatigue life, and a smoother surface finish.

Modified PTFE is a chemically modified version of PTFE that has new capabilities in addition to the property characteristics consistent with virgin PTFE material.

Modified PTFE has these new or improved characteristics over standard PTFE:

Part surfaces are smoother, and less porous - components stay clean since they are less likely to trap contaminants
Low micro-void content yields improved permeation resistance
Longer flex life than PTFE
Increased stiffness & improved creep resistance
Higher dielectric strength yields superior high-voltage insulation
Fusible / Weldable (Utilizing various heat welding techniques with moderate pressure)
Examples of Containers & Tubes created using APT's Modified PTFE Fusing & Machining Processes

PTFE stands for Polytetrafluoroethylene, a fluorocarbon thermoplastic that has found extensive use in engineering applications and is best known for having the lowest coefficient of friction of any solid.  It’s also known as Teflon, Dyneon TM, 1,1,2,2-tetraflouroethene or 1,1,2,2-tetraflouroethylene. 

As already pointed out, PTFE is one of the most chemically inert polymers available (Chemical Resistance Chart).  It has a continuous usage temperature range from -200°C to 250°C and is quite resistant to water absorption.  In addition, it has anti-adhesive behavior which resists the buildup of solids, making it incredibly easy to CIP (Clean In Place).   In fact, there are various grades of PTFE that are FDA approved.

Modified PTFE is chemically referred to as polytetrafluoroethylene, and by the trade name Polyflon.  It is a fascinating combination of the properties of PTFE and PFA (Perfluoroalkoxy), which is known for its superior mechanical properties.

Like PTFE, TFM is chemically inert and has a similar range for continuous usage temperature, as well as similar resistance to water absorption.  It also retains much of PTFE’s non-stick characteristics.

TFM also has a slightly higher spring rate, but noticeably better fatigue properties and exhibits better stress recovery.  In addition, it is easier to weld than PTFE and weighs less.  TFM is also resistant to both embrittlement and aging.

One factor that makes TFM special is the density of the molecular structure.  This results in a significantly lower rate of gas permeation for the same thickness of material when compared to PTFE.  This characteristic is extremely important when used in a highly corrosive environment.  With its dense molecular structure, TFM also offers a smoother surface finish that PTFE.  Also, like PTFE, there are various grades of TFM that have been FDA approved.

Source:https://www.sukoptfe.com/ptfe-vs-mptfe-modified-ptfe

PTFE Hydrophilic and Hydrophobic

PTFE membrane is a thin, highly porous film that behaves as an absolute retentive membrane. Their inherently hydrophobic nature make PTFE membranes ideal for applications such as filtering gases, aqueous aerosols, protecting vacuum pumps, or sterile venting fermentation tanks. PTFE is inert to most chemically aggressive solvents, strong acids and bases and can be used for solvent clarification and HPLC sample prep.

PTFE membranes are available unsupported and supported. PTFE membranes with a laminated polypropylene web support to one side offers improved handling characteristics. Chemical and thermal limitations are imposed by the backing.

One of the important characteristics in membrane selection is whether you want a membrane that is Hydrophobic or Hydrophilic. Here we'll define these terms, as well as provide some examples of membrane materials and applications for both types. Hydrophilic literally means “water loving.” Hydrophilic membranes will attract water, and in the process push away other molecules in order to allow water access to the membrane. This keeps contaminants away from the membrane allowing it stay clean and functioning for a longer period of time. Because of this trait hydrophilic membranes are especially well suited for medical applications and biological assays. Hydrophobic on the other hand, literally means “afraid of water.” 

These membranes will block the passage of water and are commonly used for applications involving separation of water from other materials, such as venting gases. Here is a helpful table that compares membrane materials and common uses for hydrophilic and hydrophobic properties:

Source:https://www.sukoptfe.com/ptfe-hydrophilic-and-hydrophobic

Applications of Teflon (PTFE)

Teflon is nonstick in nature and has low friction and good dielectric properties. As a result, Teflon is used for many purposes. 

A few application areas of Teflon are listed below:

Cookware: The nonstick property of Teflon has been used in the manufacture of cookware ever since the discovery of this material. Its extremely low frictional properties and high heat resistance have made Teflon cookware very popular.

Machine parts: The extremely low friction of Teflon makes it ideal for making machine parts, such as gears, bearings, pipe linings, joints, slide plates, bushings, O-rings, and saw blades. There is a lot of sliding action in the working of such machine parts. The low friction and self-lubricating property of Teflon decreases wear and tear and increases the life of machinery.

Fabric and carpet industry: The nonstick property of Teflon is also used in fabrics and carpets for improving their stain-resistant qualities.

Insulator: Teflon has excellent dielectric properties, especially at high radio frequencies. This property is useful for its use as an insulator in cables and connector assemblies.

Medicine: The chemical inertness of Teflon makes it apt for making artificial body parts.

Armor-piercing bullets: Teflon is used to coat specific types of hardened armor-piercing bullets. This coating helps decrease the wear and tear on the firearm's rifling.

Electrets: Electrets are electrostatic analogs of magnets. Teflon has a very high bulk resistivity. This property is responsible for the use of Teflon in the manufacture of electrets. Electrets made of Teflon have...

Source:https://www.sukoptfe.com/applications-of-teflon

Black PTFE Sheet Film

PTFE Sheet Film features:Unaffected by almost all chemical;Continuous use at high temperatures;Slippery non-stick surface;Outstanding dielectric properties;Outstanding chemical resistance;Superb electrical insulating properties;A wide working temperature range from -180 °C + 260°C.....

Black PTFE Sheet Film:34.25" L X 12.75" W, X .004" Thick or custom.

PTFE Film is manufactured by suspend PTFE resin after molding. It has the best ability to anti chemistry corrosion, and non-aging, and can be used under -180C ~ +260C without load, and it has the lowest fiction coefficients in known solid materials.

PTFE sheet film of advantages:

Unaffected by almost all chemical;Continuous use at high temperatures;Slippery non-stick surface;Outstanding dielectric properties;Outstanding chemical resistance;Superb electrical insulating properties;A wide working temperature range from -180 °C + 260°C;A very low coefficient of friction, resulting in unique non-stick behaviour;High dielectric properties;Non-toxic;Virgin White PTFE film, plastic pure teflon film of properties.

Source:https://www.sukoptfe.com/ptfe-sheet/black-ptfe-sheet-film

PTFE Thread Sealant Tape

With this PTFE thread seal tape, there's no need to use sticky, messy pipe dope when you're making repairs. The PTFE tape is great for producing quick, clean, air-tight seals. It's suitable for water, air or gas lines and works on threaded metal or PVC pipe.
Quick, clean, air-tight seals；Works on threaded metal or PVC pipe；Ideal for water, air or gas lines.

Thread seal tape (also known as PTFE tape or plumber's tape) is a polytetrafluoroethylene (PTFE) film for use in sealing pipe threads. The tape is sold cut to specific widths and wound on a spool, making it easy to wind around pipe threads. It is also known by the genericised trade-name Teflon tape; while Teflon is in fact identical to PTFE, Chemours (the trade-mark holders) consider this usage incorrect, especially as they no longer manufacture Teflon in tape form. Thread seal tape lubricates allowing for a deeper seating of the threads, and it helps prevent the threads from seizing when being unscrewed. The tape also works as a deformable filler and thread lubricant, helping to seal the joint without hardening or making it more difficult to tighten, and instead making it easier to tighten.

Types

Thread seal tape used in plumbing applications is most commonly white, but it is also available in various colors. It is often used to correspond to color coded pipelines (US, Canada, Australia and New Zealand: yellow for natural gas, green for oxygen, etc.).In the UK, tape is used from coloured reels, e.g. yellow reels for gas, green for potable water.

* White – used on NPT threads up to 3/8 inch
* Yellow – used on NPT threads 1/2 inch to 2 inch, often labeled "gas tape"
* Pink – used on NPT threads 1/2 inch to 2 inch, safe for propane and other hydrocarbon fuels
* Green – oil-free PTFE used on oxygen lines and some specific medical gasses
* Gray – contains nickel, anti-seizing, anti-galling and anti-corrosion, used for stainless pip

Source:https://www.sukoptfe.com/ptfe-thread-sealant-tape

PTFE vs PFA

PFA, or Perfluoroalkoxy, is a type of fluoropolymer. It has very similar properties as the more common polytetrafluoroethylene (PTFE), which is the more popularly known form of Teflon. PFA was conceived by DuPont Co. and given the brand name Teflon PFA. What distinguishes it  from the resins of PTFE is that PFA is melt processable. This is accomplished through conventional injection molding as well as screw extrusion techniques.

Polytetrafluoroethylene (PTFE), is also a synthetic fluoropolymer of tetrafluoroethylene. DuPont Co. is the best-known producer of PTFE, which, as mentioned before, is the material most people know as Teflon. Building from the accidental discovery of Roy Plunkett, PTFE is a high-molecular-weight compound comprised of carbon and fluorine. Essentially, it is a fluorocarbon solid. It is hydrophobic, meaning water or substances containing water can get it wet due to the fluorocarbon’s characteristic of having mitigated London dispersion forces. Thus, PTFE possesses a very low coefficient of friction when in contact with solids. This is due to the high electronegativity of fluorine. Other than Teflon, PTFE is also commonly called Fluon and Syncolon.

Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. 

Perfluoroalkoxy alkanes (PFA) is a copolymer of hexafluoropropylene and perfluoroethers.One commonly known PFA formulation is Teflon PFA.

PFA has very similar properties to PTFE, though the biggest difference between PTFE and PFA is that PFA is melt-processed. This is accomplished through conventional injection molding as well as screw extrusion techniques.

PTFE is popularly used as a non-stick coating for pans and many modern items of cookware. PTFE is often used in containers and pipes for handling reactive and corrosive chemicals. This is because it has non-reactive properties. Another practical application of PTFE is as a lubricant. Used in this way, PTFE helps to reduce friction within machinery, minimize the “wear and tear,” and improve energy consumption.

PFA is generally used for plastic lab equipment because of its extreme resistance to chemical attack, optical transparency, and overall flexibility. PFA is also often used as tubing for handling critical or highly corrosive processes. Other applications for PFA are as sheet linings for chemical equipment. Because of its properties, it can facilitate the use of carbon steel fiber reinforced plastics (FRPs) as replacements for more expensive alloys and metals.

Devices used for level measurement are frequently exposed to harsh tank atmospheres. Aggressive media, such as acid, can corrode probes and parts in contact with the product. Viscous and sticky products are other level measurement challenges. These can cause build-up on the wetted parts of the transmitter and increase the risk of affecting the measurement. Wetted parts coated in PTFE or PFA materials provide a good resistance to corrosive products and are an effective solution for avoiding contamination caused by product build-up.

Water based products can cause condensation on the antenna, that might affect the level measurement. Due to the hydrophobic properties of PTFE and PFA, the measurement will remain unaffected in case droplets of water build-up on the antenna parts.

PTFE, being a fluorocarbon solid, is hydrophobic, meaning that it is less easily wetted by substances containing water. Also, PTFE possesses a very low coefficient of friction when in contact with solids.

PFA is superior to PTFE in terms of flexibility particularly when it comes to tubing applications. On the other hand, PFA’s flex life (i.e., capacity to endure repetitive folding) is lower than PTFE. 

PTFE is slightly more resistant to heat than PFA. PFA is more affected by water absorption and weathering but is superior to PTFE when it comes to salt spray resistance.

PFA has the same dielectric constant as PTFE as well as a very similar dissipation factor; yet PFA has a dielectric strength three to four times higher than PTFE.

Source:https://www.sukoptfe.com/ptfe-vs-pfa

Extruder Machine for PTFE Liner

Teflon PTFE Lined Tube high viscosity in the gel state (it does not truly melt) prevents it from being processed conventionally in extruders or injection molding. PTFE tubing is therefore dry molded or extruded in hydraulic extruders with (paste extrusion) or without (ram extrusion) lubricants. Paste extrusion of PTFE yields flexible tubing. However, it occurs in a batch process and thus long continuous lengths are limited to the batch size, unlike the melt-processible fluoropolymers FEP, PFA and ETFE.

This PTFE liner Extruder is to extrude PTFE liner,It keeps stable ram speed and produces precise high quality PTFE liner products. with our original technology. The PTFE liner ram extruder series from Sunkoo is able to extrude tube which dia from 20- 150mm.

Advantages:

* Save time and money; * Advance designed; * High output; * Low energy consumption; * Long-life; * PC touch screen,extremely user-friendly operation; * The extrude PTFE tubes physical properties is stable and adjustable;

PTFE Extrusion and Sintering Equipment

Jiangsu Sunkoo Machine Tech Co., Ltd is a leading Manufacturer and exporter of PTFE & UHMWPE machines having rich experience of more than 12 years in China.
Main Machines: PTFE & UHMWPE Rod Ram Extruder, PTFE Tube Ram Extruder, PTFE Semi-Automatic press molding machine, PTFE Full Automatic press molding machine, PTFE Gasket Machine,Sintering equipment.

Pipe/Tube extrusion Machine Features:Highly innovative, Save time and money;Advance designed; High output;Low energy consumption;Long-life;Tube OD Size range:20-600 mm;Tube Production Per Hour in Kg:10-15;Length :Unlimited;Fully automated systems;Ram Machine ensures precision both in the pressing procedure and in the sinter zone;Temperature controls are also provided.
 
Rod extrusion Machine Features:Highly innovative;Save time and money;Intelligent and easy-to-use;Fully automatic systems;Rod Dia Range Min – Max Dia:4mm – 500 mm;Production Per Hour in Kg:7-10+;Long- life, with modern technology and optimized design;Ram Machine ensures precision both in the pressing procedure and in the sinter zone;Temperature controls are also provided.

Sintering Furnace Features:Sunkoo sintering Furnace deliver tight temperature control and temperature uniformity throughout the heated chamber providing an efficient and consistent sintering process from cycle to cycle. These ovens are commonly used in applications requiring a material to be formed without melting, such as: sintering a PTFE molded rods, sheets tubes etc. Details:https://www.sukoptfe.com/teflon-ptfe-sintering-furnace

Source:https://www.sukoptfe.com/ptfe-extrusion-and-sintering-equipment

PTFE vs Perfluorooctanoic Acid (PFOA)

Perfluorooctanoic acid (PFOA) (conjugate base perfluorooctanoate), also known as C8, is a synthetic perfluorinated carboxylic acid and fluorosurfactant. One industrial application is as a surfactant in the emulsion polymerization of fluoropolymers. It has been used in the manufacture of such prominent consumer goods as polytetrafluoroethylene (commercially known as Teflon). PFOA has been manufactured since the 1940s in industrial quantities. It is also formed by the degradation of precursors such as some fluorotelomers.

PTFE has been in commercial use since the 1940s. It has a wide variety of uses because it is extremely stable (it doesn’t react with other chemicals) and can provide an almost frictionless surface. Most people are familiar with it as a non-stick coating surface for pans and other cookware. It is also used in many other products, such as fabric protectors.

Perfluorooctanoic acid (PFOA), also known as C8, is another man-made chemical. It is used in the process of making Teflon and similar chemicals (known as fluorotelomers), although it is burned off during the process and is not present in significant amounts in the final products.

PFOA has the potential to be a health concern because it can stay in the environment and in the human body for long periods of time. Studies have found that it is present worldwide at very low levels in just about everyone’s blood. Higher blood levels have been found in community residents where local water supplies have been contaminated by PFOA. People exposed to PFOA in the workplace can have levels many times higher.

PFOA and some similar compounds can be found at low levels in some foods, drinking water, and in household dust. Although PFOA levels in drinking water are usually low, they can be higher in certain areas, such as near chemical plants that use PFOA.

People can also be exposed to PFOA from ski wax or from fabrics and carpeting that have been treated to be stain resistant. Non-stick cookware is not a significant source of PFOA exposure.

Many studies in recent years have looked at the possibility of PFOA causing cancer. Researchers use 2 main types of studies to try to figure out if such a substance might cause cancer.

Studies in the lab

In studies done in the lab, animals are exposed to a substance (often in very large doses) to see if it causes tumors or other health problems. Researchers might also expose human cells in a lab dish to the substance to see if it causes the types of changes that are seen in cancer cells.

Studies in lab animals have found exposure to PFOA increases the risk of certain tumors of the liver, testicles, mammary glands (breasts), and pancreas in these animals. In general, well-conducted studies in animals do a good job of predicting which exposures cause cancer in people. But it isn’t clear if the way this chemical affects cancer risk in animals would be the same in humans.

Studies in humans

Some types of studies look at cancer rates in different groups of people. These studies might compare the cancer rate in a group exposed to a substance to the cancer rate in a group not exposed to it, or compare it to the cancer rate in the general population. But sometimes it can be hard to know what the results of these types of studies mean, because many other factors might affect the results.

Studies have looked at people exposed to PFOA from living near or working in chemical plants. Some of these studies have suggested an increased risk of testicular cancer with increased PFOA exposure. Studies have also suggested possible links to kidney cancer and thyroid cancer, but the increases in risk have been small and could have been due to chance.

Other studies have suggested possible links to other cancers, including prostate, bladder, and ovarian cancer. But not all studies have found such links, and more research is needed to clarify these findings.

Source:https://www.sukoptfe.com/ptfe-vs-perfluorooctanoic-acid-pfoa

Black PTFE Sheet Film

PTFE Sheet Film features:Unaffected by almost all chemical;Continuous use at high temperatures;Slippery non-stick surface;Outstanding dielectric properties;Outstanding chemical resistance;Superb electrical insulating properties;A wide working temperature range from -180 °C + 260°C......

34.25" L X 12.75" W, X .004" Thick or custom.

PTFE Film is manufactured by suspend PTFE resin after molding. It has the best ability to anti chemistry corrosion, and non-aging, and can be used under -180C ~ +260C without load, and it has the lowest fiction coefficients in known solid materials.

PTFE sheet film of advantages:

Unaffected by almost all chemical;Continuous use at high temperatures;Slippery non-stick surface;Outstanding dielectric properties;Outstanding chemical resistance;Superb electrical insulating properties;A wide working temperature range from -180 °C + 260°C;A very low coefficient of friction, resulting in unique non-stick behaviour;High dielectric properties;Non-toxic;Virgin White PTFE film, plastic pure teflon film of properties

Contact Us:https://www.sukoptfe.com/index.php?route=information/contact

Molded PTFE Rod

PTFE Rod is manufactured in two distinct ways, extruded PTFE Rod is the most popular and is relevant to smaller sizes, Moulded PTFE Rod is relevant to the diameters over 100mm in size, smaller sizes are also available in extruded form.

Molded PTFE rod is generally used as machining stock for all kinds of chemical, electrical and mechanical components where the outstanding performance characteristics of PTFE are required. Various fillers are available to modify the properties of PTFE to meet application requirements.

Fluoro-Plastics compression molds rods and cylinders for machining in a wide range of sizes. The most common sizes are listed in the table below, but many other combinations of OD and ID are available.  Molded rods are preferred for machining because compression molding yields greater material homogeneity for the finished part.

All rods can be etched for bonding, and can be mounted on a plywood disk for less waste in machining.

All rods can be made with filled (reinforced) PTFE to enhance the performance parameters of PTFE. Materials available for reinforcement are Glass Fiber, Carbon, Graphite, Bronze, Molybdenum Disulfide, and Stainless Steel.