Polyvinyl alcohol (PVA)
Chemical formula: [C2H4O]n
Properties: Polyvinylalcohol (PVA) powder series of products is specialized in construction industryas an additive in all kinds of dry powder putty, dry mortar, tile adhesive,especially used for building putty and Mortar, improving the flexibility, waterretention and increase viscosity of mortar and putty.It’s adhesion very goodand used to be widely with paper making, sizing material for textile, adhesive,film, and dry mortar field.
Technical specifications:
Grade | Item |
Alcoholysis Degree (mol%) | Viscosity (mpa.s) | Volatile (%≤) | Ash (%≤) | pH | Purity (% ≥) |
05-88 | 86.5-89.0 | 4.8-6.0 | ≤5.0 | ≤0.6 | 5~7 | ≥93.5 |
05-99 | 98.2-100.0 | 5.0-6.5 | ≤5.0 | ≤0.7 | 5~7 | ≥93.5 |
17-99 | 98.0-100.0 | 21.0-33.0 | ≤5.0 | ≤0.7 | 5~7 | ≥93.5 |
17-88 | 86.0-90.0 | 19.5-32.0 | ≤5.0 | ≤0.7 | 5~7 | ≥93.5 |
24-88 | 87.0-89.0 | 46.0-56.0 | ≤5.0 | ≤0.3 | 5~7 | ≥93.5 |
26-88 | 87.0-89.0 | 56.0-67.0 | ≤5.0 | ≤0.3 | 5~7 | ≥93.5 |
Application:
1) In textile industry ,PVA is mainly usedas a warp dressing agent, textile finishing agent and the raw material ofvinylon.
2) In construction and upholstery industry107 gule, it's used as an additive of cement and mortar, inner and outer wallpaints,and moulding board binder;
3) In chemical industry, It's used as apolymer emulsifying agent, dispersing agent and used to produce PVA formal, PVAacetal and PVA butyral.
4) It's used as an adhesive in lumberingand paper-marking industries.
Packaging: Plastic-wovensack with polythene inner bag, net weight:20/25kgs. Stored in ventilated and dry place
