Polyvinyl alcohol (PVA)
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Parameter
Grade
Viscosity,cps
Hydrolysis (mole%)
Volatile, wt%
Ash, wt%
pH
2688
50-58
86-89
<5
<0.5
5-7
2488
44-50
86-89
<5
<0.5
5-7
2088
27-33
86-89
<5
<0.5
5-7
2088 H
27-33
<5
<0.5
5-7
1788
21-26
86-89
<5
<0.5
5-7
1488
11-14
86-89
<5
<0.5
5-7
0588
5-6
86-89
<5
<0.5
5-7
Description
Polyvinyl alcohol (PVA), a white/yellowish granule or powder, is a stable, non-toxic, and water-soluble polymer. PVA possesses good film-forming property, and the film formed from it has excellent adhesion, solvent-resistance, abrasion-resistance, high tensile strength, and great oxygen barrier property. Due to PVA possesses both hydrophilic and hydrophobic functional groups, it can act as surfactant, and can be used as a protective colloid in polymer emulsification and suspension polymerization.
Application
1.In the textile industry, they are mainly used as yarn pulp, fabric finishing agent and raw materials of vinylon fibers.
2.In the construction and decoration industries, PVA can be used as mortar cement additives, paint additives for interior and exterior wall sand molding plate adhesives.
3.In the chemical industry, PVA BP26 can be used as polymerization emulsifier dispersants, and raw materials for the production of PVF, acetal and butyral resins.
4.In lumbering and paper making industries, PVA can be used as adhesive
5.In agriculture: PVA can be used as soil improves, pesticide adhesion synergist and PVA film.
6.In petroleum exploitation, PVA can be used as well-cementing agents.
7.In addition PVA can also be used in cosmetics, pharmaceuticals, printing, ceramics, steel, electronics, electroplating and so on.
Polyvinyl alcohol (PVA)
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