| About |
|---|
| VIBRATHANE B844 is a medium performance, polyether-based TDI-terminated liquid urethane prepolymer that is readily processable by conventional hand and machine mixing techniques. When cured with 4’4- Methylene-Bis [2-Chloroaniline], this member of the VIBRATHANE family produces vulcanizes with an 80 Shore A hardness. These elastomers have properties similar to, but somewhat lower than those of VIBRATHANE B 602. They are most often used in less demanding applications. The polymer us characterized by good processibility due to its: Low Viscosity Long Working Life Liquid Working at Room Temperature&& |
| Product Description | |
|---|---|
| Supplier | Chemtura |
| Generic | PUR-脂肪族+TDI |
| Material Status | Commercial: Active |
| Features | Excellent Processability,Low Viscosity |
| Availabilitys | North America,Latin America,Asia Pacific |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.12 | g/cm³ | ASTM D792 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 80 | ASTM D2240 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | ASTM D412 | ||
| 100% strain | 4.14 | MPa | ASTM D412 |
| 300% strain | 6.89 | MPa | ASTM D412 |
| tensile strength | 20.3 | MPa | ASTM D412 |
| Tensile strain | |||
| fracture | 600 | % | ASTM D412 |
| tear strength | |||
| — | 52.5 | kN/m | ASTM D624 |
| cracking | 12 | kN/m | ASTM D470 |
| Compression deformation | |||
| 70℃，22 hr | 35 | % | 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: 10 | ||
| storage stability | 15 | min | |
| Post curing time | |||
| 70℃ | 16 | hr |
| Uncured Properties | Nominal value | Unit | Test method |
|---|---|---|---|
| Curing time | |||
| 100℃ | 1.0 | hr |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Die C |
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