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Filter medium chemical stability
Oct 26, 2016

Because of the variety of materials of which the filtration process, their chemical properties are different. Acidic, alkaline and strong oxidizing, organic solvents, and at a certain temperature to filter. This requires the selection of filter media item in the structure of the material can be processed with good chemical stability, chemical resistance, temperature resistance, resistance to microorganisms. Generally speaking, has good acid resistance of polypropylene fibers. Alkali resistance and anti oxidant effect, polyethylene fibers at room temperature on acid, aqueous alkali stability, polyester has good acid resistance.

The physical and mechanical properties

Physics of materials, mechanical properties, including moisture, wear resistance, mechanical strength, extension rate, can influence the media filter performance and service life. Structure of different types of filter media physical and mechanical performance requirements are also different, such as plate-and-frame filter compared with leaf filter, drum filter, demanding higher mechanical strength of the filter cloth. Belt filter cloth strength higher than overturning disc filter, and require a certain elongation under load as low as possible.

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