| About |
|---|
| Riteflex 440F is a nominal 38 Shore D thermoplastic polyester elastomer with medium modulus and improved flow for injection molding applications and use as a performance modifier for TPE compounding.&& |
| Product Description | |
|---|---|
| Supplier | Celanese |
| Generic | TPEE |
| Material Status | Commercial: Active |
| Features | Good liquidity |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.11 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 220℃，2.16kg | 25 | g/10min | ISO 1133 |
| Shrinkage rate | |||
| MD | 1.2 to 1.4 | % | ISO 294-4 |
| Water absorption rate | |||
| Saturation, 23 ℃ | 0.60 | % | ISO 62 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | |||
| -30℃ | 无断裂 | ||
| 23℃ | 无断裂 | ||
| Charpy Unnotch Impact strength |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 47.0 | ℃ | ISO 75-2/B |
| Vicat Softening Temp | |||
| A50 | 127 | ℃ | ISO 306/A50 |
| Melting temperature | 195 | ℃ | ISO 11357-3 |
| Linear coefficient of thermal expansion | |||
| MD | 2.4E-4 | 1/℃ | ISO 11359-2 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 2.0E+15 | ohms | IEC 60093 |
| Volume resistivity | 2.0E+14 | ohms·cm | IEC 60093 |
| Relative permittivity | |||
| 1 MHz | 5.00 | IEC 60250 | |
| Dissipation factor | |||
| 1 MHz | 0.020 | IEC 60250 | |
| Compared to the leakage tracing index | > 600 | V | IEC 60112 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shore A, 15 seconds | 88 | ||
| Shore D, 15 seconds | 36 | ||
| Tensile modulus | 50.0 | MPa | ISO 527-2/1A |
| tensile strength | |||
| fracture | 18.0 | MPa | |
| 50% strain | 7.00 | MPa | |
| Tensile strain | |||
| fracture | > 300 | % | ISO 527-2/1A/50 |
| Bending modulus | |||
| 23℃ | 45.0 | MPa | ISO 178 |
| bending strength | |||
| 3.50% strain | 2.00 | MPa | |
| 23℃ | 4.00 | MPa |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 100 to 120 | °C | |
| Drying time | 4.0 | hr | |
| Recommended maximum moisture content | 0.050 | % | |
| Hopper temperature | 20 to 50 | °C | |
| Barrel rear temperature | 185 to 200 | °C | |
| Barrel middle temperature | 185 to 210 | °C | |
| Barrel front temperature | 185 to 210 | °C | |
| Nozzle temperature | 190 to 215 | °C | |
| Processing (melt) temperature | 190 to 215 | °C | |
| Mold temperature | 20 to 55 | °C | |
| Injection speed | 中等偏快 | ||
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 10°C/min |
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