| About |
|---|
| Riteflex 425 is a nominal 25 Shore D thermoplastic polyester elastomer with low modulus and outstanding low temperature impact, and tear resistance.&& |
| Product Description | |
|---|---|
| Supplier | Celanese |
| Generic | TPC-ET |
| Material Status | Commercial: Active |
| Features | Good tear strength,low-temperature impact resistance,HB |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Extrusion |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.06 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 13 | g/10min | ISO 1133 |
| Shrinkage rate | ISO 294-4 | ||
| TD | 1.2 | % | ISO 294-4 |
| MD | 1.2 | % | ISO 294-4 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | ISO 868 | ||
| Shore A, 15 seconds | 79 | ISO 868 | |
| Shore D, 15 seconds | 24 | ISO 868 | |
| tensile strength | |||
| fracture | 10.0 | MPa | ISO 527-2/1A/50 |
| 5% strain | 1.00 | MPa | ISO 527-2 |
| 10% strain | 2.00 | MPa | ISO 527-2 |
| 50% strain | 3.00 | MPa | ISO 527-2/1A/50 |
| Tensile strain | |||
| fracture | 750 | % | ISO 527-2/1A/50 |
| Bending modulus | ISO 178 | ||
| -40℃ | 162 | MPa | ISO 178 |
| 23℃ | 17.0 | MPa | ISO 178 |
| 100℃ | 8.00 | MPa | ISO 178 |
| bending strength | ISO 178 | ||
| 3.50% strain | 1.00 | MPa | ISO 178 |
| 23℃ | 1.00 | MPa | ISO 178 |
| Ross Twist Test | > 1.0E+6 | Cycles | Internal Method |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tear strength | ISO 34-1 | ||
| TD | 62 | kN/m | ISO 34-1 |
| MD | 61 | kN/m | ISO 34-1 |
| Basho’s elasticity | 65 | % | ASTM D2632 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | ISO 179/1eA | ||
| -30℃ | No Break | ISO 179/1eA | |
| 23℃ | No Break | ISO 179/1eA | |
| Charpy Unnotch Impact strength | ISO 179/1eU | ||
| -30℃ | No Break | ISO 179/1eU | |
| 23℃ | No Break | ISO 179/1eU | |
| Impact strength of cantilever beam notch | ISO 180/1A | ||
| -40℃ | No Break | ISO 180/1A | |
| -30℃ | No Break | ISO 180/1A | |
| 23℃ | No Break | ISO 180/1A | |
| Notched impact strength of cantilever beam | ISO 180/1U | ||
| -30℃ | No Break | ISO 180/1U | |
| 23℃ | No Break | ISO 180/1U |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 42.0 | ℃ | ISO 75-2/B |
| Melting temperature | 155 | ℃ | ISO 11357-3 |
| Linear coefficient of thermal expansion | |||
| MD | 2.5E-4 | 1/℃ | ISO 11359-2 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 2.0E+14 | ohms | IEC 60093 |
| Volume resistivity | 2.0E+14 | ohms·cm | IEC 60093 |
| Dielectric strength | 24 | kV/mm | IEC 60243-1 |
| Relative permittivity | |||
| 1 MHz | 5.10 | IEC 60250 | |
| Compared to the leakage tracing index | > 600 | V | IEC 60112 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 1.60 mm | HB | UL 94 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 100 to 110 | °C | |
| Drying time | 4.0 | hr | |
| Recommended maximum moisture content | 0.050 | % | |
| Hopper temperature | 20 to 50 | °C | |
| Barrel rear temperature | 155 to 170 | °C | |
| Barrel middle temperature | 170 to 180 | °C | |
| Barrel front temperature | 170 to 180 | °C | |
| Nozzle temperature | 170 to 190 | °C | |
| Processing (melt) temperature | 170 to 190 | °C | |
| Mold temperature | 20 to 55 | °C | |
| Injection speed | Moderate-Fast | ||
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Die C |
| 3. 10°C/min |
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