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- TECHNICAL DATA SHEET: KEY CHARACTERISTICS AND APPLICATIONS​

Polytetrafluoroethylene (POM) [Teflon®]

General Information:

  • Product Name: Polytetrafluoroethylene (PTFE), commonly known under the brand name Teflon®
  • Classification: Semi-crystalline fluoropolymer
  • Chemical Structure: Linear polymer of tetrafluoroethylene units

 

Typical Properties:

  • Density: 2.15 – 2.20 g/cm³
  • Tensile Strength: 20 – 35 MPa
  • Elongation at Break: 200 – 400%
  • Tensile Modulus: 500 – 700 MPa
  • Hardness: Shore D 50-65
  • Coefficient of Friction: Extremely low, typically around 0.05 – 0.10
  • Continuous Use Temperature: -200°C to 260°C (-328°F to 500°F)
  • Chemical Resistance: Almost universal; inert to most chemicals
  • Dielectric Constant (1kHz): 2.0 – 2.1
  • Water Absorption: < 0.01%

 

Features and Benefits:

  • Chemical Inertness: Resistant to almost all chemicals.
  • Thermal Stability: Can operate at high temperatures without degradation.
  • Low Friction: Among the lowest coefficients of friction of any solid material.
  • Electrical Insulation: Excellent electrical properties over a wide range of frequencies.
  • Non-stick: Highly resistant to adhering by most materials.
  • UV Resistance: Resistant to UV radiation and weathering.

 

Applications:

  • Chemical Industry: Seals, gaskets, and lining of pipes/tanks.
  • Electrical/Electronics: Insulation for wiring, connectors, and components.
  • Cookware: Non-stick coatings for pans and baking equipment.
  • Aerospace & Automotive: Seals, gaskets, and bushings.
  • Medical: Catheters, sutures, and other implantable devices.
  • Plumbing: Thread seal tapes.

 

Processing Methods:

  • Compression Molding: Common for producing sheets, rods, and tubes.
  • Extrusion: Limited to certain types due to its processing characteristics.
  • Skiving: Producing thin sheets or films from thick blocks.
  • Sintering: PTFE does not melt; it undergoes sintering above its crystalline melting point.

 

Environmental Impact and Recycling:

  • PTFE recycling is complex due to its chemical resistance.
  • Some advanced methods can reclaim PTFE, but widespread recycling is currently limited.

 

Storage and Handling:

  • Store PTFE in a cool, dry environment. The material is chemically inert and stable under standard storage conditions.
  • When machining or handling PTFE, ensure adequate ventilation due to potential off-gassing of small amounts of fluorinated compounds.



Safety Information:

  • Solid PTFE is non-toxic and safe to handle.
  • Avoid overheating, as decomposition can release harmful fumes, especially above 400°C (752°F).

Note: This technical data sheet offers a general overview and typical properties of PTFE/Teflon®. Actual specifications might differ based on the manufacturer and specific grade of the material. Always refer to the manufacturer’s data sheets for accurate details on a particular product.

Disclaimer: This information is provided “as is” without warranties. Users should conduct their own tests and evaluations for specific applications.

Trademark Note: Teflon® is a registered trademark of Chemours, a spin-off of the chemical giant DuPont. The generic term for the material is PTFE. Always check for specific brand characteristics.

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