| About |
|---|
| DuraStar™ Polymer MN621 has been tested for FDA/ISO 10993 and USP Class VI Biological Evaluation testing after Gamma and EtO sterilization. It contains a mold release to improve ejection. It has excellent appearance and is nearly water-clear. This resin is the toughest of the Durastar™ family of products. It processes easily and requires minimal drying time. It has superior toughness, high clarity and good chemical resistance.&& |
| Product Description | |
|---|---|
| Supplier | Eastman |
| Generic | 热塑性聚酯 |
| Material Status | Commercial: Active |
| Features | Excellent Processability,Good Clarity,Good flexibility,E-beam disinfection,Good stripping performance,Radiation disinfection,Solvent resistance |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.20 | g/cm³ | ASTM D792 |
| Density | 1.19 | g/cm³ | ISO 1183 |
| Shrinkage rate | |||
| MD：3.2 mm | 0.20 to 0.60 | % | ASTM D955 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | ASTM D256 | ||
| -40℃ | 60 | J/m | ASTM D256 |
| 23℃ | 370 | J/m | ASTM D256 |
| Impact strength of cantilever beam notch | ISO 180 | ||
| -40℃ | 6.3 | kJ/m² | ISO 180 |
| 23℃ | 30 | kJ/m² | ISO 180 |
| Impact strength of cantilever beam notch | ASTM D4812 | ||
| -40℃ | No Break | ASTM D4812 | |
| 23℃ | No Break | ASTM D4812 | |
| Dart impact equipped with measuring instruments | ASTM D3763 | ||
| -40℃，Energy at Peak Load | 48.0 | J | ASTM D3763 |
| 23℃，Energy at Peak Load | 45.0 | J | ASTM D3763 |
| Multi axial instrumented impact energy | ISO 6603-2 | ||
| -40 ℃, energy to peak strength | 55.0 | J | ISO 6603-2 |
| 23 ℃, energy to peak strength | 71.0 | J | ISO 6603-2 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 66.0 | ℃ | ISO 75-2/A |
| 1.8 MPa, unannealed | 65.0 | ℃ | ASTM D648 |
| 0.45 MPa, unannealed | 73.0 | ℃ | ASTM D648 |
| 0.45 MPa, unannealed | 73.0 | ℃ | ISO 75-2/B |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Transmittance | ASTM D1003 | ||
| total | 91.0 | % | ASTM D1003 |
| Regular | 89.0 | % | ASTM D1003 |
| Haze | 0.30 | % | ASTM D1003 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| Fracture, 23 ℃ | 49.0 | MPa | ISO 527-2 |
| Fracture, 23 ℃ | 53.0 | MPa | ASTM D638 |
| Yield, 23 ℃ | 46.0 | MPa | ASTM D638 |
| Yield, 23 ℃ | 47.0 | MPa | ISO 527-2 |
| Tensile strain | |||
| Fracture, 23 ℃ | 310 | % | ASTM D638 |
| Fracture, 23 ℃ | 210 | % | ISO 527-2 |
| Yield, 23 ℃ | 5.0 | % | ASTM D638 |
| Yield, 23 ℃ | 4.0 | % | ISO 527-2 |
| Bending modulus | |||
| 23℃ | 1900 | MPa | ASTM D790 |
| 23℃ | 1750 | MPa | ISO 178 |
| bending strength | |||
| Yield, 23 ℃ | 67.0 | MPa | ASTM D790 |
| 23℃ | 64.0 | MPa | ISO 178 |
| Rockwell hardness | |||
| R-level | 105 | ASTM D785 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 70 | °C | |
| Drying time | 3.0 | hr | |
| Processing (melt) temperature | 250 to 290 | °C | |
| Mold temperature | 15 to 30 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
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