Views: 0 Author: Site Editor Publish Time: 2022-10-14 Origin: Site
PTFE (F4) is polytetrafluoroethylene, which has good temperature resistance and corrosion resistance. It can resist the corrosion of any medium, and its color is white.
The chemical properties of PFA FEP PTFE are similar, but FEP can only be used below 200 degrees, and PTFE cannot be injected.
Several basic types:
1. Teflon PTFE: PTFE (polytetrafluoroethylene) non stick coating can be used continuously at 260 ° C, with extremely low friction coefficient, good wear resistance and excellent chemical stability.
2. Teflon FEP: FEP (fluorinated ethylene propylene copolymer) non stick coating has stable chemical stability, excellent non stick characteristics, and the use temperature is 200 ° C
3. Teflon PFA: PFA (perfluoroalkylate) non stick coating and FEP sample melt and flow to form a non porous film during baking. The advantage of PFA is that it has a higher continuous service temperature of 260 ° C and a stronger stiffness, which is particularly suitable for use in the field of anti sticking and chemical resistance under high temperature conditions.
4. Teflon ETFE: ETFE is a copolymer of ethylene and tetrafluoroethylene. The resin is a tough fluoropolymer, which can form a highly durable coating with strong chemical resistance and can work continuously at 150 ° C.