To put it simply, the general process flow for the preparation of polytetrafluoroethylene microporous membranes is: polytetrafluoroethylene dispersion resin, booster (material selection), mixing, calendering, biaxial stretching, and coiling.
Polytetrafluoroethylene (PTFE), referred to as F-4, is an engineering material. It has the characteristics of various other engineering plastics, and its excellent properties are unmatched by other engineering plastics; its wide range of Frequency range and high and low temperature application range, excellent chemical stability, high electrical insulation, outstanding surface non-stickiness, good lubrication and atmospheric aging resistance make polytetrafluoroethylene an important factor in solving related technologies in various industrial sectors. Belongs above other plastics.
The filtration mechanism of the polytetrafluoroethylene microporous membrane is a surface filtration mechanism, which can easily remove dust. The membrane pore size is small and uniform, the micropore structure is stable, the porosity can reach 80%~90%, and the filtration efficiency can reach 99.999995%. The filtering accuracy can reach above U15 level, or even reach U17 level.
At the same time, the surface is water-repellent and has a very high water pressure resistance, so it has high waterproof performance.
The protection against viruses in liquids is mainly based on the low surface tension of the PTFE film and the high water pressure resistance of the composite film, making it difficult for droplets to adhere, wet or penetrate.
The polytetrafluoroethylene microporous membrane produced by the manufacturer uses imported raw materials, has a full set of advanced production equipment, an advanced clean room and an independent composite slitting workshop to ensure the production quality of ptfe membrane ;Using production and testing instruments imported from the United States to test the quality of PTFE film, and passing international SGS testing and certification, as well as ISI testing and certification.
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