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Polyvinyl Alcohol 97 Series
Executive Standard Q/GYJ 07
Applications These products are mainly used as polystabilizer of vinyl acetate emulsion and used in papermaking,adhesive,sponge,temporary protective film,paper processing and ceramics of ferrite adhesive etc..
Packaging polypropylene woven bag with inner lined plastic film.Net weight: 25kg,20kg/bag.
Major Technical Index
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PVA 20-97 |
PVA 22-97 |
Item |
Top grade |
First grade |
Qualified |
Top grade |
First grade |
Qualified |
Sodium acetate content , % |
≤ 1.5 |
≤ 1.5 |
≤ 2.0 |
≤ 1.5 |
≤ 1.5 |
≤ 2.0 |
Volatile content , % |
≤ 7.0 |
≤ 8.0 |
≤ 10.0 |
≤ 7.0 |
≤ 8.0 |
≤ 10.0 |
Ash content , % |
≤ 0.7 |
≤ 1.0 |
≤ 1.5 |
≤ 0.7 |
≤ 1.0 |
≤ 1.5 |
Average polymerization |
2050 ± 100 |
2250 ± 100 |
Viscosity , mPa · s |
30.0 - 40.0 |
40.0 - 50.0 |
Alcoholysis , %(mol/mol) |
96.0 - 98.0 |
96.0 - 98.0 |
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PVA 24-97 |
Item |
Top grade |
First grade |
Qualified |
Sodium acetate content , % |
≤ 1.5 |
≤ 1.5 |
≤ 2.0 |
Volatile content , % |
≤ 7.0 |
≤ 8.0 |
≤ 10.0 |
Ash content , % |
≤ 0.7 |
≤ 1.0 |
≤ 1.5 |
Average polymerization |
2450 ± 100 |
Viscosity , mPa · s |
50.0 - 60.0 |
Alcoholysis , %(mol/mol) |
96.0 - 98.0 |
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