PTFE

PTFE is produced by free radical polymerization of tetrafluoroethylene, it has numerous applications. It has some unique properties that make it a useful material in a wide range of applications. For example:

  • Very high melting point: With a melting point of around 327°C, there are very few situations where PTFE would be damaged by heat.
  • Hydrophobic: It’s resistance to water means it never gets wet, making it useful in cooking, wound dressings and more.
  • Chemically inert: The majority of solvents and chemicals will not damage PTFE.
  • Low coefficient of friction: The coefficient of friction of PTFE is one of the lowest of any solid in existence, meaning nothing will stick to it.
  • High flexural strength: It’s ability to bend and flex, even at low temperatures, means it can be easily applied to a variety of surfaces without losing its integrity.

What is PTFE?

Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. It is fluorocarbon solid, as it is a high molecular weight compound consisting wholly of carbon and fluorine. It has one of the lowest coefficients of friction of any solid.

PTFE vs Teflon

PTFE is the shortened name of the chemical polytetrafluoroethylene, and Teflon is the trade name of the same polymer. Whether you call it PTFE or Teflon, this material’s incredible versatility allows it to be used in a staggering variety of products and applications in nearly every industry.

PTFE Films and Tapes

The major application of PTFE is for the insulation of wiring in aerospace and computer applications. This application exploits the fact that it has excellent dielectric properties, especially at high radio frequencies, making it suitable for use as an excellent insulator in connector assemblies and cables. Combined with its high melting temperature, this makes it the material of choice as a high-performance substitute for the weaker and lower-melting-point polyethylene commonly used in low-cost applications.

PTFE film is also widely used in the production of carbon fiber composites as well as fiberglass composites, notably in the aerospace industry. It is used as a barrier between the carbon or fiberglass part being built. The film prevents the non-production materials from sticking to the part being built, which is sticky due to impregnated resins.

PTFE Glass Fabrics and Tapes

PTFE glass fabrics consist of a woven fiberglass that has been coated with a PTFE resin. They are designed for a wide range of applications and come in several grades to meet specific performance requirements. These fabrics have a nonstick surface, perform well under temperatures ranging from -100° F to 500° F. They also are chemically inert, have high tensile strength and have outstanding electrical properties. Ideal for mold release in composite bonding, heat sealing and ironing equipments.

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