Industrial Grade Polyvinyl Alcohol Resin(PVA)

Polyvinyl alcohol (PVA for short), organic compound, white flake, flocculent or powdered solid, non-toxic, tasteless, pollution-free, can be dissolved in 80–90 °C water. Slightly soluble in dimethyl sulfoxide. Its aqueous solution has good adhesion and film-forming properties; It has chemical properties such as esterification, etherification and acetalation of long-chain polyols. It is a water-soluble polymer with a wide range of uses, its performance is between plastic and rubber, and its uses can be divided into fiber and non-fiber two major uses.

Product introduction

1.Physical and chemical properties:
Polyvinyl alcohol is a kind of non-toxic,tasteless,non-polluting high molecular polymer,with its appearance presenting as white or
light yellow flocculent,flake or powder.
Molecular formula of complete alcoholysis polyvinyl alcohol:-C,H,O )n-
Molecular formula of partial alcoholysis polyvinyl alcohol:-C,H,O )n-(C,HO,)m-
True specific weight of polyvinyl alcohol:1.26~1.31
Apparent specific gravity of flake polyvinyl alcohol is 0.47~0.57g/cm3
Apparent specific gravity of powered polyvinyl alcohol is 0.65~0.75g/cm3
Apparent specific gravity of granular polyvinyl alcohol is 0.58~0.65g/cm3
Polyvinyl alcohol possesses better thermal stability,soluble in water,good co-mixing performance.In addition,polyvinyl alcohol and its film can withstand oils,lubricants,hydrocarbon and most organic solvents.

2.Main purpose
It is used in fiber processing,textile pulp,adhesives production,architectural coating production,emulsion stabilizers and dispersants production,and manufacture of acetal derivatives.Furthermore,polyvinyl alcohol can aldo be widely used biodegradable films,protective colloid and soil conditioners,seeds and pharmaceutical coating agents,inorganic and electronic products adhesives,water soluble films,cosmetic additives,temporary protective films,etc.

3.Executive standard
QB001-2011 Polyvinyl Alcohol standard is implemented in the products from Ningxia Dadi Chemical Co.,Ltd.

4.Packaging specifications
Plastic woven bags or paper-plastic woven bags or paper bags are applied in the packaging of polyvinyl alcohols.Packaging specification:25kg/bag (net weight).