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PVA Polyvinyl Alcohol Resin Paper Coating CAS 9002-89-51
Specialized PreparationPVAPolyvinyl Alcohol
Longkey Chemistry Limited
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Product Description Formula (C2H4O)nMolecular weight 26,000 - 200,000 g/mol (varies by grade)CAS 9002-89-5Synonym namePolyvinyl AlcoholPVOHPVAPOVALEthenol homopolymerHydroxyetheneEINECS number 209-183-3H.S. Code 390530 ApplicationAdhesives: Binder in paper, textiles, and wood adhesives.Textile Sizing: Temporary protective coating for yarns.Paper Coatings: Surface sizing agent for improved printability.Emulsion Polymerization: Dispersant/stabilizer for PVC and VAM latex.Pharmaceuticals: Tablet coating and ophthalmic formulations.Packaging Films: Water-soluble films for detergents and agrochemicalsPropertiesAppearance: White to creamy granular powder or pellets.Soluble in water (hot or cold, depending on hydrolysis degree).Insoluble in most organic solvents (e.g., acetone, ethanol).Hydrolysis Degree: Partially hydrolyzed (87-89 mol%) / Fully hydrolyzed (98-99 mol%)Viscosity (4% sol., 20°C): 4-100 mPa·s (dependent on polymerization degree)Bulk Density: 1.19-1.31 g/cm3pH (4% solution): 5.0-7.0Melting Point: 200-240°C (decomposes)Glass Transition Temp.: ~85°C (fully hydrolyzed) / ~58°C (partially hydrolyzed)Flash Point: Non-flammable (>300°C)Moisture Conten: ≤5% (typical) GHS Hazard Statements: not classified.PackagePackage: 25kg/polybagContainer load: 16MT/20ft. 26MT/40ft, on pallet.Storage: keep in dry and cool conditions, avoid moisture, rain and sunlight.Shelf time: 24 monthsBlocking Prevention: Use moisture-proof
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