A new type of filter material formed by compounding a layer of polytetrafluoroethylene (PTFE) film on the surface of ordinary filter material. This is PTFE coated filter material. The PTFE membrane acts as a “primary dust layer”. Material exchange is carried out on the surface of the membrane, and effective filtration can be carried out from the beginning of use. The unique three-dimensional network structure of the film prevents dust from passing through, and there is no risk of pore clogging. This type of filtration is called “surface filtration”.
Currently on the marketPTFE Coated filter mediaThe main coating processes include: adhesive method and high-temperature hot pressing process. Adhesive method: This method mainly uses the adhesive effect of adhesive to bond the film and the base fabric together. This process is easy to operate and the cost of the laminating machine is low. It is a laminating process that is currently widely used. High-temperature hot-pressing process: The high-temperature hot-pressing lamination process is to first subject the base fabric or PTFE film to special surface treatment, and then laminate the film and base fabric together under a certain pressure and temperature.
PTFE coated filter materialIt is more obvious than other pure high-performance fiber (PPS, glass fiber, P84, aramid) filter materials The difference is: as time goes by, PTFE will not age. With the joint action of high-temperature gases, corrosive gases, and liquids, the breaking strength of the PTFE base fabric will not decay, and the service life will be greatly improved.
At present, the PTFE high-efficiency film-coated filter materials we independently develop and produce are materials for high-efficiency/ultra-high-efficiency air filters. The main products are HEPA and ULPA high-efficiency film-coated filter materials. Adopting leading film-making and thermal recovery processes, it has the characteristics of high filtration precision, low resistance, and high resistance-to-efficiency ratio, and can be widely used in semiconductor, electronics, flat-panel display, photovoltaic and other industries. Interested parties are welcome to enter the store for consultation.
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