Filtration materials worldwide technology trends
From the polymer, the metal can be made with mineral fibers, yarns, granules or film form of existence of the filter material. Often made of synthetic non-woven structure, and given its strength by thermal, mechanical, chemical or adhesive methods. Wetlaid efficient glass fiber filter is very suitable for high temperature environments. The fibrous material having a large specific surface area advantages, which will have a lower pressure drop and high filtration efficiency (FE). Yarn made of woven or knitted fabric has high strength, it is often used as a kind of bag filter dust collector can be cleaned by a pulse filtration system airflow or vibration effect. Particulate material such as metal, ceramics made by sintering a porous filter, for high-temperature applications, such as engine exhaust filter.
Porous polytetrafluoroethylene (ePTFE) is a thin-film filter having a fibril structure, the material under moderate pressure drop can produce high filtration efficiency. Polytetrafluoroethylene (PTFE) is a high-strength material with high temperature resistance, chemical corrosion and other characteristics. By electrospinning (ES) technology to produce the fineness of the fibers in the nanometer range is the current hot spot, because the nano-fiber manufacturing efficiency filter has a good potential for development.
