Polymers are classified into the following four types according to deformation characteristics in the solid state.
02 FPM & FKM - fLUOROCARBON RUBBER
Fluorine rubber is a hydrocarbon polymer with a high degree of fluorination.
In general, all polymers with a high degree of fluorination are very stable and
have excellent oxidation resistance, weather resistance, flame retardancy,
chemical resistance, and oil resistance to many fluids. This stability is due to the higher
strength of the C-F bond than the C-H bond. Fluorine rubber has a variety of
products depending on the polymer composition and fluorine content, and in general,
polymers that are terpolymers have better oil resistance and
chemical resistance than binary copolymers.
Petroleum-based oils and lubricants,
organic ester-based lubricants, silicate-ester based Lubricants,
silicone fluids and greases, aryl phosphate ester fluids,
aromatic hydrocarbons (benzene, toluene, xylene),
halogenated hydrocarbons (trichloroethylene, carbon tetrachloride)
04 Purpose of Use
Even though it is not excellent in electrical conductivity,
but it is used where heat resistance, ozone resistance, chemical resistance,
and heat dissipation are required.
|Polymer Type||MONOMER||Fluorine Content(% approx)||Hydrogen Content(% apporx)|
|Copolymer||VF - HFP||65||1.9|
|Terpolymer||VF - HFP - TFE||68||1.4|
|Tetrapolymer||VF - HFP - TFE - CS||70||1.1|
|LT Tetrapolymer||VF - PMVE - TFE - CS||67||1.1|