Poly vinyl Alcohol(POVAL), PVA

Physical Property: Density: relative density of polyvinyl alcohol (25 ℃ / 4 ℃) 1.27 ~ 1.31 (solid), 1.02 (10% solution. Heating performance: it will be discolored slowly heated to above 100 ℃in the air, embrittlement. Heated to 160 ~ 170 ℃ etherification dehydration, loss of solubility, heated to 200 ℃ begin to decompose.

More than 250 ℃ into the polymer containing conjugated double bonds. Chemical properties: Soluble in water, heated to completely dissolve the general need to 65 ~ 75 ℃. Not dissolve in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, etc., slightly soluble in DMSO.

120 ~ l50 ℃ soluble glycerol, however, a jelly when cold to room temperature. Specification: power 1799, 2099, 2488, 1788, 0588 Appearance: White powder

Usage:Fiber can be divided into basic and non-fiber products that we tend to non-fiber, more extensive use, can be used in coatings, adhesives (to prevent the paint from the skin, loss), textile, construction, wood processing, paper making, printing . Play a major role in bonding. Features:And CMC, have a customer needs the product price, must first ask him what is specific to the viscosity and specific purposes.