PTFE biaxially oriented film was successfully developed by the American GORE company in 1976. The film prepared through the biaxially stretched process has high porosity, chemical corrosion resistance, high and low temperature resistance, high strength, bending resistance, etc. Features, let’s take a look at them in detail.
In the 1960s, PuPont first used uniaxial stretching to produce PTFE stretched membranes, but the size of the micropores, porosity and membrane strength were not ideal.
In the mid-1970s, the American Gore Company successfully developed expanded PTFE microporous films using biaxial stretching technology. After that, Japan made great progress in research in this area and applied for a number of patents.
my country began to develop biaxially stretched PTFE membranes in the 1970s, but it has been stuck in the uniaxially stretched process for a long time. Since the 1990s, some units have developed and produced biaxially stretched microfiltration membranes.
Suzhou New Material Technology Co., Ltd. is a fluorine material film manufacturer that integrates the research, development, production and sales of PTFE air filtration membranes, PTFE bubble point membranes, PTFE membranes, Teflon membranes and coated filter materials.
The company has advanced PTFE film production lines, lamination and composite production lines, which are at the domestic advanced level.
PTFE biaxially stretched membrane is prepared using unique biaxially stretched technology, which can ensure complete retention of bacteria and other impurities while having a large flux.
The material is resistant to high temperatures, strong acids and alkali, and has wide chemical applicability. When used for gas filtration, it can achieve 100% retention of various phages, bacteria and particles above 0.02um.
PTFE microporous membrane has high filtration efficiency and can meet the filtration efficiency level requirements of sub-high efficiency, high efficiency and ultra high efficiency air filters.