Many families are now equipped with air purifiers. A good air purifier can help purify the indoor air in the home and eliminate adsorbed pollutants. How many people know about air purification? What is the core filter material of the filter?
HEPA filter element can be called the heart of the air purifier because its material directly affects the performance and service life of the air purifier. . There are many kinds of materials that make up HEPA on the market, which can be divided into PP (polypropylene) high-efficiency filter paper, PET filter paper, PP and PET composite high-efficiency filter paper, and glass fiber high-efficiency filter paper. Among them, PP (polypropylene) is paper, so it generally cannot be washed. Another part of the HEPA filter is made of PET or PTFE, which is why many claims on the Internet that HEPA filters are washable.
Teflon microporous membrane manufacturer uses polytetrafluoroethylene dispersed resin, which is premixed, extruded, calendered, The microporous membrane produced by special processes such as biaxial stretching is the core filter material of the HEPA filter element. The surface morphology of the microporous film is a spider web-like microporous structure. Pores are formed between the microfibers, and the arrangement direction of the microfibers is basically parallel to the stretching direction; the junction of the fiber bundles is the node, which is formed by the entanglement of many microfibers.
Teflon microporous membrane manufacturerThe membrane is an asymmetric membrane, and the micropore sizes are different on the front and back sides of the membrane. The cross-sectional micropore size of the membrane is larger than the micropore size on its surface, and the vertical and horizontal micropore sizes are also different, with the longitudinal micropores being larger than the transverse ones. Utilizing the special node fibrillation, smooth surface, chemical resistance, air permeability and impermeability, large air permeability, flame retardant, high temperature resistance, strong acid and alkali resistance and other characteristics of the PTFE filter membrane, it can be used for atmospheric dust removal, air purification, etc. Teflon microporous membrane manufacturer In addition to having ultra-high filtration efficiency and meeting the filtration efficiency requirements of ultra-high-efficiency air filters, filter paper can also restore filtration performance through water washing or backflushing. Thereby extending the service life of the equipment. Interested parties can enter the store for consultation and purchase!
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