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Polyvinyl Alcohol 88 series
Executive Standard Q/GYJ 07
Applications Mainly used in fiber processing, papermaking, adhesive, polystabilizer of vinyl acetate emulsion, plastic forming, ceramics or ferrite adhesive and cosmetics etc..
Packaging Polypropylene woven bag with lining of plastic film. NW: 25kg, 20kg.
Major Technical Index
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PVA20-88 |
PVA22-88 |
Item |
Top grade |
First grade |
Qualified |
Top grade |
First grade |
Qualified |
Sodium acetate content , % |
≤ 1.0 |
≤ 1.5 |
≤ 1.5 |
≤ 1.0 |
≤ 1.5 |
≤ 1.5 |
Volatile content , % |
≤ 5.0 |
≤ 8.0 |
≤ 10.0 |
≤ 5.0 |
≤ 8.0 |
≤ 10.0 |
Ash content , % |
≤ 0.4 |
≤ 0.7 |
≤ 1.0 |
≤ 0.4 |
≤ 0.7 |
≤ 1.0 |
Average polymerization |
2050 ± 100 |
2250 ± 100 |
Viscosity , mPa · s |
25.0 - 35.0 |
35.0 - 45.0 |
Alcoholysis , %(mol/mol) |
86.0 - 90.0 |
86.0 - 90.0 |
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Item |
Top grade |
First grade |
Qualified |
Sodium acetate content , % |
≤ 1.0 |
≤ 1.5 |
≤ 1.5 |
Volatile content , % |
≤ 5.0 |
≤ 8.0 |
≤ 10.0 |
Ash content , % |
≤ 0.4 |
≤ 0.7 |
≤ 1.0 |
Average polymerization |
2450 ± 100 |
Viscosity , mPa · s |
40.0 - 50.0 |
Alcoholysis , %(mol/mol) |
86.0 - 90.0 |
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