
PVA
(Polyvinyl Alcohol)
Introduction
Polyvinyl alcohol (PVA), a white/yellowish granule or powder, is a stable, non-toxic, and water-soluble polymer. PVA possesses superb film-forming property, and the produced film has excellent adhesion, solvent-resistance, abrasion-resistance, tensile strength, and oxygen barrier. Since PVA possesses both hydrophilic and hydrophobic functional groups, it can act as a surfactant, and can be used as a protective colloid in polymer emulsification and suspension polymerization.
Application
1.Warp sizing agent:Protective coating for natural fiber and synthetic fiber.
2.Textile/Fabric finishing chemicals:Textile finishing chemicals used in processing, giving the textile more stiff, anti-wrinkle, anti-shrinking, or other specific properties.
3.Screen printing:Temporary adhesive for screen printing machine.
4.Paper industry:Paper adhesive, re-wetting adhesive, surface coating, pigment coating, and internal sizing.
5.Plywood, woodworking industry:Modifier for thermosetting resins.
6.Construction industry:Cement additives and molding adhesives.
7.Raw material for PVA sponge and grinding discs sanding paper.
8.PVAc, PVC, PS:Stabilizer for emulsion, protective colloids.
9.Packaging material:PVA films.
10.Printing industry:Screen printing photosensitive films (photographic plate photosensitive films and zinc plate printing photosensitive films).
Grade |
Viscosity (cps) |
Hydrolysis (mole %) |
Volatile(wt%) |
Ash(wt%) |
PH |
BP-05 |
5-6 |
86-89 |
<5 |
<0.5 |
5-7 |
BP-17 |
21-26 |
86-89 |
<5 |
<0.5 |
5-7 |
BP-20H |
27-33 |
90-93 |
<5 |
<0.5 |
5-7 |
BP-20 |
27-33 |
86-89 |
<5 |
<0.5 |
5-7 |
BP-24 |
44-50 |
86-89 |
<5 |
<0.5 |
5-7 |
BP-26 |
50-58 |
86-89 |
<5 |
<0.5 |
5-7 |
BF-05 |
5-6 |
98.5-99.2 |
<5 |
<0.7 |
5-7 |
BF-17 |
25-30 |
98.5-99.2 |
<5 |
<0.7 |
5-7 |
BF-24 |
58-68 |
98.5-99.2 |
<5 |
<0.7 |
5-7 |
BF-26 |
70-80 |
98.5-99.2 |
<5 |
<0.7 |
5-7 |
Packing |
|||||
20 KG paper bag, 1 MT/pallet |