| About |
|---|
| Texin 288 is an aromatic polyester-based thermoplastic polyurethane with a hardness of approximately 88A. It can be processed by injection molding. Extrusion processes are also possible for some applications.&& |
| Product Description | |
|---|---|
| Supplier | Covestro |
| Generic | TPU-酯 |
| Material Status | Commercial: Active |
| Features | Good flexibility,High impact resistance,Antifreeze,Good wear resistance,Grease resistance,Fuel resistance |
| Availabilitys | North America |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.20 | g/cm³ | ASTM D792 |
| Density | 1.20 | g/cm³ | ISO 1183 |
| Shrinkage rate | ISO 2577 | ||
| TD：2.54 mm | 0.80 | % | ASTM D955 |
| MD：2.54 mm | 0.80 | % | ASTM D955 |
| TD：2.54 mm | 0.80 | % | ISO 2577 |
| MD：2.54 mm | 0.80 | % | ISO 2577 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | ASTM D2240 | ||
| Shaw’s A | 88 | ASTM D2240 | |
| Shaw’s D | 38 | ASTM D2240 | |
| Shore hardness | ISO 868 | ||
| Shaw’s A | 88 | ISO 868 | |
| Shaw’s D | 38 | ISO 868 | |
| Bending modulus | |||
| 23℃ | 46.2 | MPa | ASTM D790 |
| 23℃ | 46.2 | MPa | ISO 178 |
| Taber abraser | |||
| 1000 cycles, 1000 g, H-18 wheels | 40.0 | mg | ISO 4649 |
| 1000 cycles, 1000 g, H-18 wheels | 40.0 | mg | ASTM D1044 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| yield | 46.9 | MPa | ISO 37 |
| yield | 46.9 | MPa | ASTM D412 |
| 300% strain | 20.0 | MPa | ASTM D412 |
| 300% strain | 20.0 | MPa | ISO 37 |
| 100% strain | 6.90 | MPa | ASTM D412 |
| 100% strain | 6.90 | MPa | ISO 37 |
| Tensile strain | |||
| fracture | 500 | % | ISO 37 |
| fracture | 500 | % | ASTM D412 |
| tear strength | 105 | kN/m | ASTM D624 |
| tear strength | 110 | kN/m | ISO 34-1 |
| Compression deformation | |||
| 23℃，22 hr | 15 | % | ASTM D395 |
| 23℃，22 hr | 12 | % | ASTM D395B |
| 70℃，22 hr | 52 | % | ASTM D395 |
| 70℃，22 hr | 21 | % | ASTM D395B |
| Compression deformation | ISO 815 | ||
| 23℃，22 hr | 15 | % | ISO 815 |
| 23℃，22 hr | 12 | % | ISO 815 |
| 70℃，22 hr | 52 | % | ISO 815 |
| 70℃，22 hr | 21 | % | ISO 815 |
| Basho’s elasticity | 41 | % | ASTM D2632 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Glass transition temperature | -45.0 | ℃ | DMA |
| Vicat Softening Temp | 135 | ℃ | ASTM D1525 4 |
| A50 | 135 | ℃ | ISO 306/A50 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature – hot air dryer | 99 to 110 | °C | |
| Drying time – hot air dryer | 2.0 | hr | |
| Recommended maximum moisture content | < 0.030 | % | |
| Proposed maximum recycled material ratio | 20 | % | |
| Barrel rear temperature | 190 to 210 | °C | |
| Barrel middle temperature | 190 to 215 | °C | |
| Barrel front temperature | 200 to 220 | °C | |
| Nozzle temperature | 205 to 225 | °C | |
| Processing (melt) temperature | 205 to 215 | °C | |
| Mold temperature | 15 to 40 | °C | |
| Injection pressure | 41.4 to 103 | MPa | |
| Injection speed | Slow-Moderate | ||
| Back pressure | < 1.38 | MPa | |
| Screw speed | 40 to 80 | rpm | |
| Cushion | < 3.18 | mm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Die C |
| 3. Post-cured 16 hr at 230°F |
| 4. Rate A (50°C/h), Loading 1 (10 N) |
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