About 70 years ago, chemist Dr. Roy Plunkett invented polytetrafluoroethylene resin in DuPont’s Jackson Laboratory in New Jersey. DuPont uses Teflon as its trademark.

Subsequently, DuPont Co also developed a series of products besides Teflon&reg, polytetrafluoroethylene resin, including Teflon&reg, AF (amorphous fluoropolymer), Teflon&reg, FEP (fluorinated ethylene propylene resin), Teflon&reg, FFR (fluoropolymer foam resin), Teflon&reg, NXT (fluoropolymer resin), Teflon&reg, PFA (perfluoroalkoxy resin) and so on.

In 1954, Colette, wife of French engineer Marc Gregoire, had an idea that her husband’s non stick material, Teflon, used to prevent knots on fishing lines, would work well if it could be used on a frying pan. The “non stick pot” that saved countless modern housewives was born. However, the earliest application of polytetrafluoroethylene invented by Roy J. Plunkett in 1938 is the world-famous “plastic material”.

After 2000, Teflon was widely used in production, and Teflon machining parts are famous all over the world.

Commodity classification

Teflon trademark of DuPont company is mainly used in the following products: PTFE, FEP, PFA, ETFE, AF, NXT, FFR.

PTFE: PTFE Machining(polytetrafluoroethylene) non stick coating can be used continuously at 260 ℃, with the highest temperature of 290-300 ℃, very low friction coefficient, good wear resistance and excellent chemical stability.

FEP: FEP (fluorinated ethylene propylene resin) non stick coating melts and flows to form a non porous film during baking. It has excellent chemical stability, excellent non stick characteristics, and the maximum service temperature is 200 ℃.

PFA: PFA (perfluoroalkoxy resin) non stick coating, like FEP, melts and flows to form a porous film during baking. The advantage of PFA is that it has a higher continuous use temperature of 260 ℃, stronger rigidity and toughness, and is especially suitable for the field of anti sticking and chemical resistance under high temperature conditions.

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