|
ITEM
|
FIRST GRADE |
QUALIFIED GRADE |
| Hydrolysis,% (mol/mol) |
87-89 |
86-90 |
| Viscosity,mPa·s |
21-25 |
20-26 |
| volatile,% |
5.0max |
7.0max |
| PH value |
5月7日 |
5月7日 |
| Ash,% |
0.5max |
0.7max |
| Purity,% |
93.5 |
91.5min
|
Applications
1)Textile industry:PVOH is mainly used as a warp dressing agent, textile finishing agent and the raw material of vinylon;
2)Construction :upholstery industry 107 glue, it's used as an additive of cement and mortar, inner and outer wall paints, and moulding board binder.
3)Chemical industry: it's used as a polymer emulsifying agent, dispersing agent and used to produce PVOH formal, PVOH acetal and PVOH butyral.
4)Paper industry:It's used as an adhesive in lumbering and paper-making industries. |
