Air purifiers can adsorb, decompose or transform various air pollutants, such as PM2.5, dust, pollen, bacteria, etc. What can do this is the core component of the purifier, which is PTFE composite filter paper.
Most existing filter papers are made of cotton fiber and are produced using different methods according to different uses.
Because its material is made of fiber, its surface has countless small holes for liquid particles to pass through, but larger solid particles cannot pass through.
This property allows liquid and solid substances that are mixed together to separate.
The existing single-layer wood pulp fiber filter paper is heavy in weight, high in basis weight, small in filtration area, highly breathable, low in precision, unstable in shape, and not suitable for harsh environments.
PTFE composite filter paper has a microporous structure with staggered fibers. The porosity can reach 80%~90%. After high-temperature heat setting treatment, the microporous structure is stable and can effectively intercept dust particles. Its pore size is small and uniform. , surface filtration mechanism, easy dust removal, strong hydrophobicity, low surface energy, good non-adhesive ability, effectively removes dust accumulated on the surface, washing with water or backflushing can restore performance and greatly extend service life.
PTFE composite filter paper is prepared using a unique biaxial stretching 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.
</p
