Views: 0 Author: Site Editor Publish Time: 2021-07-07 Origin: Site
The range of filtration cotton is relatively wide, usually referred tofilter sponge(Filter) Generally refers to air filter cotton. What is the material for filter cotton for air filters?
The filter cotton is divided into four types according to the material, and the filter material is divided into four types: synthetic fiber filter cotton, non-woven filter cotton, fiberglass filter cotton, activated carbon filter cotton.
First, synthetic fiber filter cotton:
In a general filtration environment, it is possible to replace nonwoven fabric and fiberglass covering initial, medium and high-efficiency series filtration products. It is an emerging filter material and the main development direction of future filtration materials. It has the advantages of small resistance, light weight, large weight, large capacity (burning), and environmental protection (burning). Adopt (polyester fiber polyester fiber) is the main raw material, abbreviations are referred to as PET, and polyester fibers are made of polyethylene terephthalate, also known as synthetic fibers or polyester. The proportion of polyester fibers is 1.38; the melting point is 255 ~ 260 ° C, start bonding at 205 ° C, the safety ironing temperature is 135 ° C; the water absorption is poor, only 0.4%; the filament is 4.5 g of 4.5 g / O The short fiber is 3.5 ~ 5.5 g / donation; the filament elongation is 15 to 25%, the short fibers are 25 to 40%; the high strength fiber intensity can reach 7 to 8 g / donation, and elongate is 7.5 ~ 12.5%. Polyester has excellent wrinkle, elasticity and dimensional stability, good electrical insulation properties, weather resistant, friction, non-mold, good chemical reagent properties, can resist weak acid and weak base. The industry is called: chemical fiber, chemical fiber has a large chemical fiber, and the large chemical fiber is a polyester fiber produced by high quality PET slice. Small scales refer to the fibers produced by some small and medium-sized manufacturers with poor quality recovery regeneration PET slice.
Second, non-woven fabricfilter sponge：
The famous polyester fiber, commonly known as non-woven fabric, non-woven fabric has a wide range of technical characteristics such as a wide range of technological maturity, and stability, and is a typical filter for my country, a central roof, and a bag filter. Making processes are made of meltblow, acupuncture, spun, spunbond, etc., with other equivalents of filters, have a large amount of material, large dust, and long-moisture resistance, long service life, economy Durable and other advantages. Non-woven fabric is also a filter material, the technology is mature, and the production cost is low. In recent years, due to the continuous development of technology, the emergence of composite non-woven fabrics greatly improves the image of non-woven, low-cost, low-end, can be achieved in efficiency. Asia high efficiency. At the same time, the composite nonwoven fabric is also used for filtration of a place where air cleaning is relatively high.
Third, fiberglass filter cotton:
The glass fiber filter wool is mainly made of a variety of thickness, and the length of the glass fiber is made of special processing processes. The glass fibers are characterized by its stable properties, high temperature resistance, high efficiency, long service life. And only glass fibers can be competent in certain special circumstances. Widely used in the initial filter, high temperature filter and high-efficiency filters to high temperature filter and high-temperature filtration requirements.
Fourth, activated carbon filter cotton:
The characteristics of activated carbon are to remove odors in the air. Activated carbonfilter spongeIt means that the synthetic fibers are treated with a flux to add glue. Because the action of activated carbon is to remove the odor, it does not emphasize the filtering efficiency. Used. It is generally necessary to cooperate with independent initial and middle-acting filters.