Generally speaking, polytetrafluoroethylene bubble point membrane has a fibrillar microporous structure. The porosity of the membrane can reach over 88% or even higher, and there are 1.4 billion micropores per square centimeter, with pore diameters ranging from 0.1um to 0.5um. Let’s find out today.
The reasonable filter membrane area needs to be evaluated through scientific methods. An area that is too large may lead to a decrease in product yield and an increase in filtration costs; a filtration area that is too small may lead to extended filtration time, blockage midway, or even product scrapping. Attention should be paid to the rationality of the filter system structure to avoid sanitary dead corners. There is a certain flow restriction at the filter inlet and outlet. The appropriate inlet and outlet size should be selected according to process needs.
Polytetrafluoroethylene bubble point film, also known as ptfe bubble point film, is generally made of polytetrafluoroethylene suspended powder as raw material, which is expanded and stretched to form a microporous film. It has a fibrillar microporous structure, the porosity can reach more than 88%, there are 1.4 billion micropores per square centimeter, and the pore diameter ranges from 0.1μm to 0.5μm. Generally, this film is coated on various fabrics and substrates using special processes to become a new filter material.
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