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- Super absorbent polymer
Polyacrylamide is a kind of water soluble polymer. Polyacrylamide is insoluble in most organic solvents, has the good flocculation, It can reduce the friction resistance between liquid, by ion characteristic, polyacrylamide can be divided into nonionic, anionic,cationicand amphoteric four types. Let us know about the various uses of polyacrylamide.
1, used for papermaking
Polyacrylamideused in paper industry It has two aspects: one is to improve the survival rate of filler, pigment and so on, in order to reduce the loss of raw materials and pollution of the environment; two is to improve the strength of paper (including dry strength and wet strength). In addition, the use of polyacrylamide can also improve paper tear resistance and porous, and improve vision and printing performance.
2, the pharmaceutical industry
One of the characteristics of polyacrylamide hydrogel is, at a critical temperature, swelling it in water with small changes in temperature occur rapidly mutations, changes in volume of tens to hundreds of times. These properties can be used for concentrated aqueous solution process, avoid high temperature, it is very valuable for some organic or biological substances extraction. Polyacrylamide hydrosol can also be used to control the release of drugs and enzyme encapsulation, protein electrophoresis, artificial organs, material, contact lenses etc..
In the mining process, typically use a lot of water, finally often need useful solid recycling water, and wastewater purification recycling use. Application of polyacrylamide flocculation, can promote the aggregate sinking, the clarification of liquids and mud cake dehydration, which can improve the production efficiency, reduce the tailings erosion and water consumption, reduce equipment investment and the cost of processing, and avoid the pollution of the environment. Uranium extraction is one of the important application fields of polyacrylamide earliest, uranium ore with acid or sulfonate solution Lek, in concentrating and filtration Lek extract, add a very effective treatment polyacrylamide.
4, used in dyeing and printing industry
Polyacrylamide as fabric treatment of sizing agent, finishing agent, and a protective layer can generate compliant, anti wrinkle, anti mildew. Use of the absorbent characteristics, can reduce the rate of broken piece when spun yarn. Polyacrylamide as after treatment agent can prevent electrostatic and flame retardant fabric. Used for printing and dyeing auxiliaries, PAM can make the product adhesion fastness, high bright degree, also can be used as the silicon polymer stabilizers bleaching.