Polytetrafluoroethylene microporous membrane, referred to as ptfe microporous membrane, is a perfluorinated polymer obtained by polymerizing the monomer tetrafluoroethylene.
In the 1970s, the American Gore Company used biaxial stretching technology to develop ptfe biaxially stretched microporous membranes, which were successfully used in clothing fabrics, air filtration and other industries.
Application 1: Application in clothing fabrics Clothing fabric applications include outdoor mountaineering clothing, tents and rain boots, etc. PTFE microporous membrane has excellent hydrophobic properties and micron-level pores, making it have excellent waterproof properties and at the same time It has good breathability. Therefore, when used in clothing fabrics, it can not only effectively isolate rainwater from penetrating, but also eliminate evaporated water from the human body in a timely manner to keep you comfortable.
In addition, extensive trial experience at home and abroad shows that ordinary clothing fabrics lose their windproof performance when their air permeability exceeds 30mm/s, while the air permeability of PTFE microporous membrane under level 10 wind pressure is 28.85mm/ s, still does not exceed 30mm/s, so the film has excellent windproof performance.
Application 2: Application in industrial dust removal Industrial dust removal applications include interception and collection of polluted dust in thermal power plants, steel plants, cement plants, waste incineration plants and other fields. Because the ptfe microporous membrane has the characteristics of non-stickiness and surface filtration , so that the filter cake layer formed on the surface can be easily peeled off and removed by backflushing, thereby restoring the air permeability and greatly extending the service life of the filter bag or filter cartridge.
In addition, because this material has excellent corrosion resistance, excellent thermal stability and good mechanical properties, the use of ptfe microporous membranes in the field of industrial smoke purification has increased rapidly. Research data shows that in 2016- In 2020, the compound annual growth rate of demand for PTFE filter materials in waste incineration, coal power, steel and cement dust removal systems will exceed 10%, and industries such as waste incineration will even exceed 20%.
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