Product Overview

Kaweco Polyvinyl Alcohol 2088 is a water soluble polymer. The “20” denotes a polymerization degree of approximately 2000, and the “88” denotes an alcoholysis degree of between 87.0% and 89.0% (mol/mol).

Product Characteristics

• Appearance: usually white flaky, flocculent or powdery solid, odorless.
• Solubility: soluble in water, completely dissolved generally need to be heated to 65-75 ℃. Insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, etc., slightly soluble in dimethyl sulfoxide.
• Chemical stability: at room temperature, the pH value of its aqueous solution is around 5-7, viscosity is stable, almost unaffected by weak acids, weak bases or organic solvents (esters, ketones, high-grade alcohols, hydrocarbons), and oil resistance is extremely high.
• Miscibility: it can miscible with starch, synthetic resin, cellulose derivatives and various surfactants, and has good stability.
• Film-forming property: It has good film-forming property, and the film formed has excellent adhesion, solvent resistance, friction resistance, tensile strength and oxygen barrier.

Product Applications

• Textile field: mainly used for spinning slurry, as well as cotton, bleached cotton, viscose filament fiber sizing, but also as a fabric finishing agent, vinylon fiber raw materials.
• Construction field: used in cement and mortar additives, interior and exterior wall coating additives, molding board adhesives, etc., can improve flexibility, water retention, enhance the adhesion strength.
• Paper industry: it can be used for surface coating and varnishing, and used as binder in coating system, which can significantly improve the ester resistance, solvent resistance and water resistance of paper, and can produce higher fabric strength.
• Chemical industry: used as polymerization emulsifier, dispersant, and preparation of a series of chemical products with special properties such as vinyl alcohol acetaldehyde, acetaldehyde, butyraldehyde resin.
• Other aspects: used as soil conditioner, pesticide adhesion synergist; in cosmetics, medicine, printing, ceramics, iron and steel, electronics, electroplating, etc. are also widely used, such as photopolymerization adhesive for the production of electronic screen plate in the electronics industry.