- Home >> Polyvinyl Alcohol(PVA) >> polyvinyl alcohol for construction
Polyvinyl alcohol ( CHINA PVA )
1. Polyvinyl alcohol PVA Performace
Polyvinyl alcohol (PVA) powder series of products is specializedin construction industry as an additive in all kinds of dry powder putty, dry mortar, tile adhesive, especially used for building putty and Mortar, improving the flexibility, water retention and increase viscosity of mortar and putty. It’s adhesion very good and used to be widely with paper making, sizing material for textile, adhesive, film, and dry mortar field.
2.Polyvinyl alcohol features
Good thermal stability
No changes will take place below 140 ℃ till 160℃ it slowly turns yellow, intermolecular dehydration will take place between 170℃ to 200℃, intramolecular dehy-dration will take place above 200℃ , and will be discomposed completely above 300℃.
PVA is water soluble
PVA aqueous solution is very adhesive, especially for porous materials such as fiber, wood, paper and so on. Fully alcoholysis pva aqueous solution is easy to get at low temperature
PVA has the bio-degradation property
The degradation rate of pva with about 1700 polymerization degree is the highest.
grades available as below:
PVA |
Viscosity (mp.s) |
Alcoholysis Degree |
Volatile |
Sodium Acetate (%) |
Ash (%) |
PH Value |
PVA-2688 |
65.0-75.0 |
86.0-90.0 |
≤7.0 |
≤2.5 |
≤0.5 |
5-7 |
PVA-2699 |
60-75 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-2499 |
48-60 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-2488 |
40-55 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-2099 |
32-40 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-2088 |
28-40 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1799 |
22-30 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1798 |
21-31 |
97.0-99.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1792 |
20-30 |
90.0-94.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1788 |
20-26 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1599 |
18-22 |
99-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1492 |
14-18 |
90.0-94.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1399 |
13-18 |
98.0-99.5 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1498 |
12-17 |
98.0-99.8 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-1388 |
12-14 |
87.0-89.0 |
≤5 |
≤2.5 |
≤0.5 |
5-7 |
PVA-1092 |
8-12 |
90.0-94.0 |
≤6 |
≤2.5 |
≤0.5 |
5-7 |
PVA-0599 |
5-6 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-0588 |
5-6 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-0499 |
4-5 |
98.0-100 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-0498 |
4-5 |
98.0-99.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
PVA-0488 |
4-5 |
86.0-90.0 |
≤5 |
≤2.5 |
≤0.7 |
5-7 |
Safety tips: PVA has no significant toxicity or special hazard, but the operator should avoid inhaling a large number of its dust, and contact with the skin or the eye directly as the the chemical may irritate, or cause you unwell such as difficult breathing and so on.
Do not discard anywhere, otherwise the dust will fly about and cause air pollution
Keep off fire, or it will burn.
Storage: PVA products can be packed with filmed plastic woven bag, composite paper-plastic bag or paper bag. Also packed as customer requirement!
Previous:PVA for construction
Next: paper making PVA
