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 natural and synthetic fiber coating.
2. Textile/Fabric finishing chemicals： Textile finishing chemicals used in processing, giving the textile more stiffness, 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 |
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|
20 KG paper bag, 1 MT/pallet |
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