Polyvinyl alcohol（PVA）
Product category
Introduction:
Global polyvinyl alcohol (PVA) production is mainly concentrated in a few countries and regions such as China, Japan, among which the Asia-Pacific region is the main production area, accounting for more than 85% of the world’s total production. China is the world’s largest producer of polyvinyl alcohol.
Polyvinyl alcohol is an organic compound with the chemical formula [C2H4O]n. It is a white flake, flocculent or powdery solid and odorless. PVA is an important chemical raw material used to make polyvinyl acetal, gasoline-resistant pipes and vinylon, fabric treatment agents, emulsifiers, paper coatings, adhesives, glues, etc.
Specifications:
| PVA | Viscosity (mp.s) | Alcoholysis Degree | Volatile | Purity (%) | Ash (%) | PH Value |
|---|---|---|---|---|---|---|
| %(mol/ mol) | (%) | |||||
| PVA-2688 | 65-75 | 86.0-90.0 | ≤7.0 | ≥94 | ≤0.5 | 5-7 |
| PVA-2699 | 60-75 | 98.0-100 | ≤5 | ≥94 | ≤0.7 | 5-7 |
| PVA-2499 | 48-60 | 98.0-100 | ≤5 | ≥94 | ≤0.7 | 5-7 |
| PVA-2488 | 40-55 | 86.0-90.0 | ≤5 | ≥94 | ≤0.7 | 5-7 |
| PVA-2099 | 32-40 | 98.0-100 | ≤5 | ≥94 | ≤0.7 | 5-7 |
| PVA-2088 | 28-40 | 86.0-90.0 | ≤5 | ≥94 | ≤0.7 | 5-7 |
| PVA-1799 | 22-30 | 98.0-100 | ≤5 | ≥94 | ≤0.7 | 5-7 |
| PVA-1788 | 20-26 | 86.0-90.0 | ≤5 | ≥94 | ≤0.7 | 5-7 |
| PVA-0599 | 5-6 | 98.0-100 | ≤5 | ≥94 | ≤0.7 | 5-7 |
| PVA-0588 | 5-6 | 86.0-90.0 | ≤5 | ≥94 | ≤0.7 | 5-7 |
Features:
- White flake, flocculent or powdery solid, odorless. Soluble in water (above 95°C).
- The physical properties of polyvinyl alcohol are affected by chemical structure, alcoholysis degree, and polymerization degree.
- Polyvinyl alcohol has good film-forming properties, good light resistance, and is highly intolerant to many gases.
Applications:
- Polymerization additives account for about 24%；
- Polyvinyl butyral (PVB) accounts for about 15%；
- Adhesives account for about 14%；
- Textile pulp accounts for about 14%；
- Paper pulp and coatings account for about 10%；
- Other fields account for 23%.
Packing:
20kg/bag，25kg/bag，18tons/20FCL
Storage:
Store in a cool, well-ventilated place.
