CAT PTFE - 01 - ptfe

PTFE - Technical section

PTFE

(polytetrafluoroethylene)

Polytetrafluoroethylene (PTFE) is a high molecular weight polymer, one of the most versatile plastic materials known and useful for a large range of products in the high tech market sector.

PTFE is produced from tetrafluoroethylene (TFE) monomer with two different polymerization techniques:

  • granular PTFE from suspension polymerization
  • PTFE fine coagulated powders or dispersions from dispersion polymerization.


The most outstanding properties are:

  • high thermal resistance
  • high resistance to chemical agents and solvents
  • high anti-stick properties
  • high dielectric properties
  • low friction coefficient
  • non-toxicity.


PTFE is generally considered a plastomer with high degree of crystallinity; at 340°C it retains a very high viscosity, thus requiring particular transformation techniques for manufacturing of finished and semi-finished products.

PTFE can be used in a temperature range from -200°C to +260°C.

Modified PTFE

The molecular polymer structure modification greatly improves properties like deformation, dielectric, clarity, heat sealability and formability.



Filled PTFE

The addition of proper inorganic or polymeric fillers improves properties like deformation, wear, thermal expansion and conductivity.


During more than 40 years, GAPI has developed manufacturing processes and production control techniques to insure the highest quality PTFE products in the market. 


PTFE - Technical section

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