| About |
|---|
| Eastman TREVA™ is a new cellulose-based engineering bioplastic that offers both high performance and reduced environmental impact. TREVA is warm to touch, dimensionally stable and offers excellent flow and easy polish and paint for processing. Key Attributes: Dimensional stability Easy polish and paint Excellent flow Warm touch and feel Application/Uses: Ophthalmics |
| Product Description | |
|---|---|
| Supplier | Eastman |
| Generic | 其他纤维素 |
| Material Status | Commercial: Active |
| Features | Good Dimensional Stability,High liquidity,Renewable resources,Sprayable |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.22 | g/cm³ | ASTM D792 |
| Shrinkage rate | |||
| MD | 0.70 | % | ASTM D955 |
| Water absorption rate | |||
| 24hr | 2.3 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| -40℃ | 100 | J/m | |
| 23℃ | 220 | J/m |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 114 | ℃ | |
| 1.8 MPa, unannealed | 99.0 | ℃ | |
| Vicat Softening Temp | 135 | ℃ | ASTM D1525 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| R-level | 100 | ASTM D785 | |
| Tensile strength | |||
| yield | 49.0 | MPa | |
| fracture | 48.0 | MPa | |
| Tensile strain | |||
| fracture | 18 | % | ASTM D638 |
| Bending modulus | 1940 | MPa | ASTM D790 |
| Process Conditions | |||
|---|---|---|---|
| Injection | Nominal value | Unit | Test method |
| Drying temperature – hot air dryer | 75 | °C | |
| Drying time – hot air dryer | 4.0 | hr | |
| Processing (melt) temperature | < 260 | °C | |
| Mold temperature | 85 | °C | |
| Notes |
|---|
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