PTFE's unique properties are unmatched by other enginee […]
PTFE's unique properties are unmatched by other engineering plastics. Therefore, it is widely used in machinery, electronic appliances, chemical equipment, medical equipment and construction.
1, PTFE is plastic, fluorine rubber is rubber (often referred to as VITON), PTFE is also known as "plastic king", fluorine rubber is also known as "rubber king"
2, fluorine rubber is the best among all rubbers in terms of high temperature resistance and corrosion resistance.
3, PTFE temperature resistance, corrosion resistance are better than fluoro rubber, but fluoroelastomer is an elastomer, softer than PTFE
4, Fluoroelastomer is mainly used in the field of sealing, and the application field of PTFE is much wider.
Teflon is a plastic, which is divided into several basic types: PTFE, FEP, PFA, ETFE:
1. Teflon PTFE: PTFE (polytetrafluoroethylene, also known as F4): It can be used continuously at 260°C. It has a maximum operating temperature of 290-300°C, extremely low friction coefficient, good wear resistance and excellent Chemical stability, also known as "plastic king"
2, Teflon FEP: FEP (polytetrafluoroethylene and hexafluoropropylene copolymer, also known as F46): excellent chemical stability, excellent non-stick properties, the maximum use temperature of 200 °C
3, Teflon PFA: PFA (perfluoroalkylated) PFA has the advantage of a higher continuous use temperature of 260 °C, stronger toughness, especially suitable for use in high temperature conditions, anti-adhesion and chemical resistance Field
4. Teflon ETFE: ETFE (copolymer of ethylene and tetrafluoroethylene) has excellent chemical resistance and can continuously work at 150°C. PTFE above 260°C> PFA 260°C> FEP 200°C>> ETFE 150°C.