Granules Polyvinyl Alcohol Hydrolysis With High Viscosity
For PVA, it depends on the degree of hydrolysis of the material; try ethyl acetate if the degree is relatively low. Some PVAs are also slightly soluble in alcohol (ethyl). Do you have access to the Polymer Handbook (Brandrup and Immergut)? It will have a chapter on solubilities of polymers and you could look up solvents for the individual polymers
PVA is soluble in water but it has to be stirred continuously in water at 90 degree celcius for on hour. A clear viscous solution will be obtained.
It is very easy to prepare a hydrogel from PVA as well as dry PVA film. To dissolve water use 1 gram of PVA in 100 ml of water
Steps to dissolve PVA:
1. Use 1 gram of PVA in 100 ml of water.
2. Use a hot plate with a magnetic stirrer for proper mixing.
3. Maintain the temperature at 100-degree centigrade.
4. Keep speed at 3000 rpm.
5. Wait for 2 hours.
PVA technical data sheets:
| Item code | Viscosity
mPa.s | Hydrolysis
mol % | Volatile
%≤ | Ash
% ≤ | PH value |
| 04-88(L) | 3.0-4.5 | 86.0-90.0 | 5.0 | 0.5 | 5–7 |
| 04-99(L) | 3.0-4.5 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 05-88(L) | 4.5-6.0 | 86.0-90.0 | 5.0 | 0.5 | 5–7 |
| 05-99(L) | 4.5-6.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 10-92(L) | 8.0-13.0 | 90.0-94.0 | 5.0 | 0.5 | 5–7 |
| 08-99(L) | 8.0-10.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 10-99(L) | 9.0-14.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 14-92(L) | 13.0-18.0 | 90.0-94.0 | 5.0 | 0.5 | 5–7 |
| 15-99(L) | 15.0-20.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 17-80(L) | 18.0-24.0 | 78.0-82.0 | 5.0 | 0.5 | 5–7 |
| 17-88(L) | 20.0-28.0 | 86.0-90.0 | 5.0 | 0.5 | 5–7 |
| 17-92(L) | 20.0-30.0 | 90.0-94.0 | 5.0 | 0.5 | 5–7 |
| 17-95(L) | 20.0-30.0 | 94.0-96.0 | 5.0 | 0.5 | 5–7 |
| 17-96(L) | 20.0-30.0 | 94.0-98.0 | 5.0 | 0.5 | 5–7 |
| 17-97(L) | 21.0-31.0 | 96.0-98.0 | 5.0 | 0.5 | 5–7 |
| 17-98(L) | 20.0-26.0 | 97.0-99.0 | 5.0 | 0.5 | 5–7 |
| 17-99(L) | 20.0-26.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 17-99(H) | 20.0-26.0 | 98.5-100.0 | 5.0 | 0.5 | 5–7 |
| 20-99(H) | 34.0-42.0 | 98.5-100.0 | 5.0 | 0.5 | 5–7 |
| 23-99(H) | 42.0-55.0 | 98.5-100.0 | 5.0 | 0.5 | 5–7 |
| 20-88(L) | 28.0-40.0 | 86.0-90.0 | 5.0 | 0.5 | 5–7 |
| 20-99(L) | 32.0-40.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 22-99(L) | 40.0-48.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 24-88(L) | 40.0-55.0 | 86.0-90.0 | 5.0 | 0.5 | 5–7 |
| 24-99(L) | 48.0-60.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 26-99(L) | 60.0-75.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 28-99(L) | 75.0-90.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
| 30-99(L) | 90.0-130.0 | 98.0-100.0 | 5.0 | 0.5 | 5–7 |
Application:
a.textile industry:PVA is mainly used as a warp dressing agent, textile finishing agent and the raw material of vinylon;
b.construction :upholstery industry 107 glue, it's used as an additive of cement and mortar, inner and outer wall paints, and moulding board binder.
c.chemical industry: it's used as a polymer emulsifying agent, dispersing agent and used to produce PVA formal, PVA acetal and PVA butyral.
d.paper industry:It's used as an adhesive in lumbering and paper-making industries.
e. agriculture: used as a soil improving agent, pesticide reinforcing agent and PVOH thin film
f. used as a well-fixing agent in petroleum exploitation.
g. It can also be used into cosmetic, medicine, printing, ceramics, steel-making, electronics and plating.
Besides , our company also supply Pvc Resin,Pvb Resin,Pet Resin,PP Resin,Petroleum Resin,Titanium Dioxide, etc.
Package:By 20 kgs/ bag 16mt with pallet 18mt without pallet for 20'fcl
Product Categories : Resin > PVA Resin
