| About |
|---|
| ADIPRENE L 275 is a polyether-based liquid urethane prepolymer which is readily processable by conventional hand and machine mixing techniques similar to those used for ADIPRENE L 315. ADIPRENE L 275 produces high quality vulcanizates in the 70-75 Shore D hardness range when cured with MBCA (4,4′-methylene-bis[o-chloroaniline]). These tough, high resilience elastomers have many unique features: Excellent low-temperature flexibility Excellent abrasion resistance Good hydrolytic stability Good compression set resistance Outstanding impact strength Excellent processing and controlled hardness build-up ADIPRENE L 275 has a longer working life when mixed with curatives than does ADIPRENE L 315, making it more suitable for the preparation of large parts.&& |
| Product Description | |
|---|---|
| Supplier | Chemtura |
| Generic | PUR-脂肪族+TDI |
| Material Status | Commercial: Active |
| Features | Excellent Processability,Good flexibility,High impact resistance,Hydrolysis stability,Elastic,Low temperature toughness,Good wear resistance |
| Availabilitys | Asia Pacific |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.21 | g/cm³ | ASTM D792 |
| Shrinkage rate | |||
| MD | 1.7 | % | ASTM D955 |
| Thermosetting mixed viscosity | Nominal value | Unit | Test method |
|---|---|---|---|
| 21℃ | 3.00 | ||
| 70℃ | 4.00 | ||
| 100℃ | 7.00 | ||
| 121℃ | 8.50 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 49.1 | MPa | ASTM D412 |
| 100% strain | 35.0 | MPa | ASTM D412 |
| Tensile strain | |||
| fracture | 230 | % | ASTM D412 |
| tear strength | |||
| cracking | 20 | kN/m | ASTM D470 |
| Compression deformation | |||
| 70℃，22 hr | 1.1 | % | ASTM D395A |
| Basho’s elasticity | 47 | % | ASTM D2632 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 960 to 1000 | J/m | ASTM D256 |
| Uncured Properties | Nominal value | Unit | Test method |
|---|---|---|---|
| Curing time | |||
| 100℃ | 1.0 | hr |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D | 74 | ASTM D2240 | |
| Bending modulus | 758 | MPa | ASTM D790 |
| compressive strength | ASTM D695 | ||
| 10% strain | 42.3 | MPa | |
| 25% strain | 78.6 | MPa |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 48.0 | ℃ | ASTM D648 |
| Embrittlement temperature | -54.0 | ℃ | ASTM D746 |
| Thermosetting components | |||
| resin | 按重量计算的混合比: 100 | ||
| Hardening method | 按重量计算的混合比: 26 | ||
| storage stability | 3.0 | min | |
| Post curing time | |||
| 100℃ | 16 | hr |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 2.8 MPa (400psi) load |
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