T-HIPS 7350ESCR
T-HIPS 7350ESCR is a high-impact polystyrene grade with improved stress crack resistance compared to conventional high-impact polystyrene. It has excellent melt strength, making it suitable for deep-draw thermoforming. It offers good environmental stress crack resistance at low temperatures, ideal for applications in frozen packaging and oily food and dairy products.
Product Name: T-HIPS 7350ESCR
Product Description: T-HIPS 7350ESCR is a high-impact polystyrene grade with improved stress crack resistance compared to conventional high-impact polystyrene. It has excellent melt strength, making it suitable for deep-draw thermoforming. It offers good environmental stress crack resistance at low temperatures, ideal for applications in frozen packaging and oily food and dairy products.
Applications:
- Sheet extrusion
- Refrigerator inner liners and door panels
- Packaging for oily food and dairy products
Physical and Mechanical Properties:
| Property | Unit | Test Method | Typical Value |
|---|---|---|---|
| MELT FLOW INDEX (200°C 5KG) | g/10min | ASTM D-1238 | 4 |
| STYRENE RESIDUAL MONOMER | PPM | ATOFINA Test | <500 |
| VICAT SOFTENING POINT (50 °C/hr 1kg) | °C | ASTM D-1525 | MIN93 |
| TENSILE STRESS AT YIELD | MPA | ASTM D-638 | 18 |
| TENSILE STRENGTH AT BREAK | MPA | ASTM D-638 | 20 |
| ELONGATION AT BREAK | % | ASTM D-638 | 50 |
| TENSILE MODULUS | MPA | ASTM D-638 | 1600 |
| IZOD IMPACT | KJ/M2 | ASTM D-256 | 12 |
Additional Notes:
- All values are typical and should not be construed as specifications. Users are advised to confirm through their own tests.
- Density and shrinkage values of this grade are approximately 1.04 kg/lit and (0.4-0.7)% as per ASTM D-955.
- Tests are conducted at 23°C unless specified otherwise.
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