The material PTFE was discovered and put into production by DuPont in the United States in 1945. It has a history of many years.
Nowadays, polytetrafluoroethylene microporous membrane, one of the important products of ptfe, has been widely used.
Microporous membranes are generally made of polytetrafluoroethylene, which is expanded and stretched to form a microporous film. This film is coated on various fabrics and substrates using a special process to become a new type of membrane. Filter material, this membrane has small pore size, uniform distribution and large porosity. While maintaining air circulation, it can filter all dust particles including bacteria to achieve the purpose of purification and ventilation. In industries such as pharmaceuticals, electronic semiconductor production, etc. The air has higher cleanliness requirements. Semiconductor production requires no more than 1 particle per cubic foot of air, while in a normal environment, there are more than 500,000 particles per cubic foot of air.
Therefore, it also has good filterability for special gases with high temperature, high humidity, high corrosion and organic liquids.
So PTFE microporous membrane is widely used in medical, electronics, precision machinery and other industries.
The polytetrafluoroethylene microporous membrane produced has high porosity, small and uniform pore size. Therefore, the membrane can achieve higher efficiency with lower resistance. It can not only effectively intercept dust particles, but also achieve the highest accuracy. H14 level (99.995%) or above, it can keep the energy consumption of the vacuum cleaner low, and the material can be washed to restore its performance and be reused, which greatly extends the service life, which greatly reduces the cost.
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