The clean room filter material is a three-dimensional mesh structure with no through holes. The opening rate and pore size distribution are important indicators for measuring PTFE membrane.
The porosity of ptfe membrane is generally between 80% and 95%. A high porosity will increase the ventilation volume, and the pore size distribution is concentrated, indicating that the membrane pore size is uniform.
Clean room filter material refers to a microporous film made of polytetrafluoroethylene as raw material, using special processing technology, calendering, extrusion, biaxial stretching and other methods.
This kind of membrane has excellent breathability, corrosion resistance, aging resistance, high temperature resistance and other properties.
According to the usage requirements, the pore diameter can be between 0.1-10um, the thickness can be between 2-100um, the porosity can reach 50%–80%, and there are up to hundreds of millions of micropores per square centimeter.
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