The uses of polyvinyl alcoho

2024-01-31

Application


Polyvinyl alcohol (PVA), with a white powder appearance, is a widely used water-soluble polymer with properties between plastic and rubber. It can be divided into two major uses: fiber and non fiber.




Due to its unique strong adhesion, film flexibility, smoothness, oil resistance, solvent resistance, protective colloid properties, gas barrier properties, wear resistance, and water resistance after special treatment, PVA is not only used as a fiber raw material, but also widely used in the production of coatings, adhesives, paper processing agents, emulsifiers, dispersants, films, and other products. Its application scope covers textiles, food, medicine, construction, wood processing, papermaking, etc Printing, agriculture, steel, polymer chemical and other industries.




Folding product performance


The polyvinyl alcohol resin series products are white solids with three types of appearance: flocculent, granular, and powdered; Non toxic, odorless, and pollution-free, it can dissolve in water at 80-90 ℃. Its aqueous solution has good adhesion and film-forming properties; Capable of withstanding most organic solvents such as oils, lubricants, and hydrocarbons; It has chemical properties such as esterification, etherification, and acetalization of long-chain polyols.




Folding product usage


Mainly used in the textile industry for warp sizing, fabric finishing agents, and vinylon fiber raw materials; 107 adhesives, interior and exterior wall coatings, adhesives in the construction and decoration industry; Used in the chemical industry as polymerization emulsifiers, dispersants, and polyvinyl formaldehyde, acetaldehyde, and butyraldehyde resins; Used as a paper adhesive in the papermaking industry; Used in agriculture as soil amendments, pesticide adhesion enhancers, and polyvinyl alcohol films; It can also be used in daily cosmetics and high-frequency quenching agents.


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