What is PTFE (polytetrafluoroethylene)

PTFE, Polytetrafluoroethylene (PTFE), is a synthetic fluoropolymer of tetrafluoroethylene with a wide range of applications. It is a high-performance plastic raw material. Dr. Roy Plunkett discovered it in 1938, and it is most commonly recognized by the brand name Teflon™. The famous property application is made of non-stick cookware.

PTFE CAS number is 9002-84-0. 

Full forms of PTFE

Structure of PTFE

PTFE is a polymer made from the chemical compound tetrafluoroethylene. Its structure consists of a long chain of carbon atoms, each bonded to two fluorine atoms. This configuration gives PTFE its distinctive characteristics:

  • Chemical Formula: (C2F4)n
  • PTFE chemical namepoly: (1,1,2,2-tetrafluoroethylene)
  • Structure: Linear polymer chain

PTFE has many forms as granular, powder, dispersion, Free-flow resin, and so on. Teflon is a trademark of Chemour, 

PTFE Dispersion

PTFE Free-flow Resin

PTFE Micro Powder

Different grades of PTFE

PTFE has different grades, such as Virgin PTFE, Glass filled PTFE, Carbon filled PTFE, MoS₂ filled PTFE, Bronze Filled PTFE, Peflon Filled PTFE Powder is a modified material that improves the properties of PTFE by adding filler materials to it.

PHOTE

Grade

Application

VIRGIN PTFE

without Filler, have Molding, Fine powder, free-flow, and micro powderforms.

Glass Filled PTFE

Virgin PTFE with 15%, 25%, 30% glass fiber, with good mechanical strength, and wear resistance and is widely used in many industrial applications such as bearings and seals.

Carbon Filled PTFE

Carbon-filled PTFE enhances its compressive strength, making it suitable for use in higher-load work environments.

MoS2 Filled PTFE

MoS₂ PTFE is a composite material made by adding molybdenum disulfide (MoS₂) 5%-20% as a filler to polytetrafluoroethylene (PTFE). Molybdenum disulfide is an important solid lubricant in industry.

Bronze Filled PTFE

Bronze-filled teflon is a composite material, This material has excellent properties of PTFE with the mechanical strength of bronze to create a material that is useful in many engineering applications.

Advantages of using PTFE

  • High Melting Point: PTFE remains stable at high temperatures, up to 327°C (620°F).
  • Safety: Teflon is non-toxic and safe for use in consumer products.
  • Maintenance-free: Easy to clean and maintain due to its non-stick nature
  • Competitive price: PTFE is the lowest price in the fluoropolymer family, such as FEP, PFA, ETFE, and PCTFE.
  • High Density: PTFE Density is high to 2.2 g/cm³
  • Hydrophobic: PTFE is hydrophobic, meaning it repels water effectively.
  • Low Friction: It has one of the lowest coefficients of friction among solid materials.
  • Chemical Resistance: It is resistant to almost all chemicals, making it suitable for industrial applications
  • Electrical Insulation: Excellent insulator, used in electrical components.

Due to its incredible properties, the Teflon can be made for many applications,  from household products to critical industrial components.\

Some of PTFE's applications

nonstick cookware

Nonstick Cookware

PTFE tube

Teflon Architectural Tensile membrane

Architectural membrane

Teflon Sealing Tape

Braided PTFE Packing

PTFE Packing

PTFE Lined Valve

PTFE-jacketed Cable

PTFE glass coated tape

The process of PTFE

PTFE can be processed in several ways: compression Molding, paste Extrusion, Ram Extrusion, Electrostatic Spraying, Impregnation, Coating, and Sintering.

Different finished products need different process, choose the suitable process with your technical support.

Impregnation

Suitable for PTFE dispersion to produce PTFE coated fiber glass, or Architectural membrane.

paste extrusion

PTFE fine powder blend with other additives, then paste extrusion to produce sealing tape, wire, etc

Ram Extrusion

Suitable for Free-flow PTFE resin and presenting PTFE Resin to produce Rods and Tubes.

PTFE Spray Coating

Suitable for PTFE micro powder to electrostatic coating surface treatment.

Compression Molding

Suitable for PTFE Molding Powder and filler Powder, and then Sintering the semi-products to Finished Shape.

Sintering

PTFE products need sintering before finished. The sintering temperature is between 100-300℃.

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Whether you’re a chemical distribution, plastic factory, hose manufacturer, or Nonstick coating manufacturer, Peflon can offer you a reliable PTFE solution for your projects.

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