Usage and Applications of Polyvinyl Alcohol PVA

Polyvinyl Alcohol ( referred to as PVA) white powder, is a wide range of uses of the water-soluble polymers, performance between the plastic and rubber, its use can be divided into two major fiber and non-fiber applications.

PVA has a unique strength in adhesion, film flexibility, smoothness, oil resistance, solvent resistance, protective colloid property, gas block, and abrasion resistance as well as having a specially treated water resistance. Therefore, in addition to fiber materials for outside, is also used extensively for the production of coatings, adhesives, paper processing agent, emulsifier, dispersant, film and other products. Range of applications throughout the textile, food, medicine, construction, wood processing, paper making, printing, agriculture, steel, polymer and chemical industries.

Performance: Polyvinyl Alcohol Resin products is white solid, good points flocculent, granular, powdery three kinds. It is non-toxic, tasteless, non-polluting, can be dissolved in water 80--90 ℃. Its aqueous solution has good adhesion and film-forming properties; resistance to most organic solvents oils, hydrocarbons, lubricants and the like; polyhydric alcohols with long -chain esterification, etherification, acetalization and other chemical properties.

Usage: Polyvinyl Alcohol PVA is mainly used in the textile industry warp pulp , textile finishing agents, Polyvinyl Alcohol fiber materials. 107 plastic construction and decoration industries, interior and exterior paints, adhesives. In chemical industry as a polymeric emulsifier, dispersant and polyvinyl formal, acetal, butyral resin. In Paper and paper industry as a binder. In Agriculture for soil amendments, pesticides and polyvinyl alcohol film adhesion synergist. Also can be used for cosmetics and induction hardening agent aspects.

The way to test whether this product completely dissolved: Take out a small amount of solution, add 1 ~ 2 drops of iodine solution, if there is a blue granular white body, that has not been completely dissolved, such as color can be evenly spread, has completely dissolved.