| About |
|---|
| RPU 70 is a tough, heat resistant material that is a good choice for parts requiring strength, toughness, and moderate heat resistance.&& |
| Product Description | |
|---|---|
| Generic | PUR |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Good flexibility,Heat Resistance, Good |
| Availabilitys | North America |
| Process Methods | 180320 |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.01 | g/cm³ | |
| viscosity | |||
| 25℃ | 2.10 to 2.30 | Pa·s | |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 1700 to 2100 | MPa | ASTM D638 |
| tensile strength | |||
| yield | 43.0 to 47.0 | MPa | |
| fracture | 43.0 to 47.0 | MPa | |
| Tensile strain | |||
| fracture | 80 to 120 | % | ASTM D638 |
| Bending modulus | 1500 to 2100 | MPa | ASTM D790 |
| bending strength | 53.0 to 71.0 | MPa | ASTM D790 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 21 to 23 | J/m | ASTM D256 |
| Notched impact strength of cantilever beam | 500 to 560 | J/m | ASTM D4812 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 70.0 | ℃ | |
| 1.8 MPa, unannealed | 55.0 | ℃ | |
| Glass transition temperature | |||
| — | 80.0 | ℃ | |
| — | 119 | ℃ | |
| Linear coefficient of thermal expansion | |||
| MD | 1.6E-4 | 1/℃ | ASTM E228 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Liquid |
| 3. Machined Notch |
| 4. E’ |
| 5. tan(d) |
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