The principle of expanded polytetrafluoroethylene (ePTFE) mainly includes its production process and characteristics. Expanded polytetrafluoroethylene is made from polytetrafluoroethylene dispersion resin through a special processing technology. The specific steps include processing the polytetrafluoroethylene dispersion resin through stretching, sintering and other processes to form a film with a microporous structure. This film is white, soft, strong and elastic, and can be bent at will.
