Special filter material for purifying biological agent
A technology for biological preparations and filter materials, which is applied in the fields of filtration and separation, layered products, glass/slag layered products, etc., can solve the problems of high cost of biological preparations, high purity requirements, and high production process requirements, and achieve physical and chemical properties. The effect of improving, high filtration precision and good cleaning performance
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[0013] The present invention can be explained in detail through the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.
[0014] The invention provides a filter material, which is a special filter material for purification of biological preparations, which is characterized in that it includes a layer of base cloth 1 woven from polyphenylene sulfide and polyacrylonitrile blended yarns. The upper and lower surfaces of the cloth 1 are symmetrically pasted with a fiber layer 2 by a needling machine, and the fiber layer 2 is composed of glass fiber chopped strands and polyaluminum chloride / polyaluminum ferric chloride / polyacrylamide / polyferric sulfate; PTFE liquid impregnation 3 is compounded on the dust-facing surface; PTFE scraping film 4 is compounded on the outer surface of the PTFE liquid impregnation. The dust-facing surface and the base cloth 1 are connected by symmetrical...
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