The English name of polytetrafluoroethylene is polytetrafluoroethylene, or ptfe for short. It is a polymer compound polymerized by tetrafluoroethylene. It is prepared through a biaxial stretching process. It is a polytetrafluoroethylene (ptfe) material commonly known as the “King of Plastics” .
Teflon waterproof and breathable membrane has a microporous structure with staggered fibers. It has high porosity and small and uniform pore diameter.
It has properties such as high temperature resistance, alkali resistance, and hydrophobicity.
The Teflon waterproof and breathable membrane uses the former. Since the minimum diameter of water droplets is about 20 microns, and the diameter of water vapor molecules is only about 0.0004 microns, there is a huge difference between the diameters of the two, and water vapor can diffuse Principle: Through the microporous membrane, liquid water or water droplets prevent water molecules from passing through due to their surface tension, thus preventing water penetration and making the breathable membrane waterproof.
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