The polyvinyl alcohol 1899 is white solid, with three types of appearance: flocculent, granular, and powdered; It can be dissolved 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.
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