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Polyvinyl Alcohol 92 series
Executive Standard Q/GYJ 07
Applications Mainly used as polystabilizer of vinyl acetate emulsion and used in papermaking, adhesive, sponge, temporary protective film, fiber processing and ceramics or ferrite adhesive etc..
Packaging Polypropylene woven bag with lining of plastic film. NW: 25kg, 20kg.
Major Technical Index
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PVA 20-92 |
PVA 22-92 |
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 , % |
≤ 5.0 |
≤ 8.0 |
≤ 10.0 |
≤ 5.0 |
≤ 8.0 |
≤ 10.0 |
Ash content , % |
≤ 0.5 |
≤ 0.7 |
≤ 1.0 |
≤ 0.5 |
≤ 0.7 |
≤ 1.0 |
Average polymerization |
2050 ± 100 |
2250 ± 100 |
Viscosity , mPa · s |
25.0 - 35.0 |
35.0 - 45.0 |
Alcoholysis , %(mol/mol) |
90.0 - 94.0 |
90.0 - 94.0 |
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|
Item |
Top grade |
First grade |
Qualified |
Sodium acetate content , % |
≤ 1.5 |
≤ 1.5 |
≤ 2.0 |
Volatile content , % |
≤ 5.0 |
≤ 8.0 |
≤ 10.0 |
Ash content , % |
≤ 0.5 |
≤ 0.7 |
≤ 1.0 |
Average polymerization |
2450 ± 100 |
Viscosity , mPa · s |
40.0 - 50.0 |
Alcoholysis , %(mol/mol) |
90.0 - 94.0 |
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