| About |
|---|
| VIBRATHANE 8522 is a polyester based, MDI terminated liquid urethane prepolymer that is readily processable by conventional hand and machine mixing techniques. When cured with 1,4 – Butanediol, this member of the Vibrathane family produces high quality vulcanizates in the 89 Shore A range, characterized by: High Tear Strength Exceptional Dynamic Properties Low Compression Set&& |
| Product Description | |
|---|---|
| Supplier | Chemtura |
| Generic | PUR-酯+MDI |
| Material Status | Commercial: Active |
| Features | Good Dimensional Stability,Good tear strength |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.24 | g/cm³ | ASTM D792 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | ASTM D412 | ||
| 100% strain | 7.69 | MPa | ASTM D412 |
| 300% strain | 20.1 | MPa | ASTM D412 |
| tensile strength | 40.7 | MPa | ASTM D412 |
| Tensile strain | |||
| fracture | 390 | % | ASTM D412 |
| tear strength | |||
| — | 71.8 | kN/m | ASTM D624 |
| cracking | 17 | kN/m | ASTM D470 |
| Compression deformation | |||
| 70℃，22 hr | 30 | % | ASTM D395B |
| Basho’s elasticity | 25 | % | ASTM D2632 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Thermosetting components | |||
| resin | 按重量计算的混合比: 100 | ||
| Hardening method | 按重量计算的混合比: 7.7 | ||
| storage stability | 6.0 | min | |
| Post curing time | |||
| 100℃ | 16 | hr |
| Uncured Properties | Nominal value | Unit | Test method |
|---|---|---|---|
| Curing time | |||
| 115℃ | 1.0 | hr |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 88 to 89 | ASTM D2240 | |
| compressive strength | ASTM D695 | ||
| 5% strain | 1.45 | MPa | ASTM D695 |
| 10% strain | 2.76 | MPa | ASTM D695 |
| 15% strain | 4.00 | MPa | ASTM D695 |
| 20% strain | 5.31 | MPa | ASTM D695 |
| 25% strain | 6.76 | MPa | ASTM D695 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Die C |
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