| About |
|---|
| ADIPRENE DURACAST E950 is an MDI-terminated polyether prepolymer having low free MDI content. A high performance 95A elastomer with excellent physical properties is obtained when this prepolymer is chain extended with DURACURE™ C3 or C3-LF. Other advantages are improved processing characteristics and easier management of health & safety during handling. The unique combination of properties exhibited by low free MDI prepolymers is superior to those available from TDI and conventional MDI prepolymers. DURACAST prepolymers cured with DURACURE C3 or C3-LF provide a superior hard segment and offer unique processing and productivity improvements. This high performance hard segment offers excellent physical and engineering properties, including high cut and tear resistance, improved flex fatigue, low temperature flexibility, excellent dynamics (at both low and high temperatures) and other high temperature properties. Traditionally, amine cures could not be used with MDI prepolymers due to high reactivity (short pot life) even though they offer some performance advantages such as high temperature resistance and tear properties. It also offers EH&S advantages as it is based on low free monomer technology and is a MBOCA free system.&& |
| Product Description | |
|---|---|
| Supplier | Chemtura |
| Generic | PUR-脂肪族+MDI |
| Material Status | Commercial: Active |
| Features | Baking,Low temperature toughness,Good tear strength |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.10 | g/cm³ | ASTM D792 |
| film | Nominal value | Unit | Test method |
|---|---|---|---|
| Pant tear resistance | ASTM D1938 | ||
| — | 35.0 | N/mm | ASTM D1938 |
| — | 57.8 | N/mm | ASTM D1938 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile stress | |||
| 100% strain | 11.7 | MPa | ASTM D412 |
| 100% strain | 12.7 | MPa | ASTM D412 |
| 300% strain | 15.5 | MPa | ASTM D412 |
| 300% strain | 13.8 | MPa | ASTM D412 |
| tensile strength | |||
| — | 29.0 | MPa | ASTM D412 |
| — | 43.4 | MPa | ASTM D412 |
| Tensile strain | |||
| fracture | 480 | % | ASTM D412 |
| fracture | 550 | % | ASTM D412 |
| tear strength | |||
| — | 61.3 | kN/m | ASTM D624 |
| — | 81.8 | kN/m | ASTM D624 |
| cracking | 27 | kN/m | ASTM D470 |
| cracking | 32 | kN/m | ASTM D470 |
| Compression deformation | |||
| 70℃，22 hr | 28 | % | ASTM D395B |
| 70℃，22 hr | 32 | % | ASTM D395B |
| 100℃，22 hr | 50 | % | ASTM D395B |
| Basho’s elasticity | |||
| — | 55 to 58 | % | ASTM D2632 |
| Resilience – Drop Ball | |||
| — | 67 to 69 | % |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| storage stability | |||
| 50 ℃ | 1400 | min | |
| stripping time | |||
| 120℃ | 20 | min | |
| 140℃ | 10 | min | |
| Post curing time | |||
| 120℃ | 16 to 24 | hr | |
| 140℃ | 16 to 24 | hr |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| friction coefficient | |||
| DIN | 450 | ||
| DIN | 582 | ||
| NBS | 1800 | % |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 94 to 95 | ASTM D2240 | |
| Relative vol loss | |||
| — | 32.0 | mm³ | |
| — | 24.0 | mm³ |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Post cure 140°C (24 hrs.) |
| 3. Post cure 120°C (24 hrs.) |
| 4. Die C |
| 5. Standard |
| 6. High Performance |
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