What are the characteristics of PTFE filter membrane?

The polytetrafluoroethylene filter membrane has excellent waterproof, moisture permeable, air permeable, 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.

When producing polytetrafluoroethylene filter membranes, the oil absorption and insolubility of PTFE plastic resin and the volatile characteristics of olefin materials are used to form micropores. Teflon plastic also has plasticity characteristics before the curing temperature. At the process temperature It is biaxially stretched within the processing range of the segment, and finally sintered and solidified in a high-temperature atmosphere to become a breathable and non-leakable filter material product.

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