| About |
|---|
| SELVOL™ E 325 is a medium viscosity fully hydrolysed polyvinyl alcohol which finds applications principally in the Adhesives, Paper and Textile industries. Adhesives: Water resistant / board laminating, winding, sealing. Paper: Surface sizing ; Pigment coating ; Release paper ; Thermal paper ; Antigrease treatment. Textiles: Cotton yarn sizing ; Spun yarn sizing / Rayon ; Finishing ; Non wovens. Others: Ceramics binder and coating ; Temporary binder / powders ; PVB production ; Water soluble films&& |
| Product Description | |
|---|---|
| Supplier | Sekisui |
| Generic | PVOH |
| Material Status | Commercial: Active |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.27 to 1.31 | g/cm³ | |
| PH value | |||
| Of a 4% aqueous solution | 5.0 to 7.0 | Internal Method | |
| VOC Content | < 1.0 | wt% | Internal Method |
| Ash Content | |||
| Sodium oxide | < 1.2 | % | Internal Method |
| 粘度 – Of a 4% aqueous solution at 20ºC 3 | 28 to 32 | mPa·s | Brookfield |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Glass transition temperature | 85.0 | ℃ | |
| Melting temperature | 230 | ℃ | |
| Linear coefficient of thermal expansion | |||
| MD：0~45℃ | 7.0E-5 to 1.0E-4 | 1/℃ | |
| specific heat | 1650 to 1670 | J/kg/℃ | |
| Thermal conductivity coefficient | 2.0 | W/m/K |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | 3.1E+7 to 3.8E+7 | ohms·cm |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | |||
| nD^20℃ | 1.5200 to 1.5500 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Degree of Hydrolysis | 98.0 to 98.8 | mol% | Internal Method |
| Methanol Content | < 0.9 | wt% | Internal Method |
| Photostability | Excellent | ||
| volatility | < 5.0 | wt% | Internal Method |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. International Reference: ISO 976 |
| 3. International Reference: ISO 2555 |
| 【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials. |