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Air Filtration Filter Cloth
Pre-Oxidized Needle Punched Filter Felt
In the field of dust removal and flue gas purification, the temperature resistance of the traditional filter material is no more than 300℃. Under the working condition higher than 300℃, the traditional filter material can not be used because of shrinkage under high temperature. Polypropylene fiber is an intermediate product of carbon fiber, which is partially cyclized black fiber formed by air oxidation at a certain temperature. Its density is about 1.40g/cm3, strength is 1.4cn/dtex, elongation is 23%, modulus is 5GPa, limiting oxygen index is 35 - 60, decomposition temperature is ≥640, moisture remain is 9%, temperature resistance is outstanding, high temperature resistance is up to 300℃, and is fire resistance and non combustion. It is acid resistant, alkali resistant, washing resistant, non-toxic, less smoke. DwHB specializes in the R&D and production of dust removal filter bags. According to the high temperature resistance of pre-oxidized fiber, DwHB select pre-oxidized fiber with glass fiber and basalt base cloth and the temperature resistance effect can reach 350-400℃, meeting the high temperature resistance requirements under special working conditions.
