T-GPPS 1540
T-GPPS 1540 is an easy-flowing crystal polystyrene ideal for extrusion and injection applications. It enhances extruder output and reduces thermoforming cycle time, especially when combined with high-impact polystyrene such as HIPS 7240. T-GPPS 1540 is well-suited for glossy-layer coextrusion applications.
Product Name: T-GPPS 1540
Product Description: T-GPPS 1540 is an easy-flowing crystal polystyrene ideal for extrusion and injection applications. It enhances extruder output and reduces thermoforming cycle time, especially when combined with high-impact polystyrene such as HIPS 7240. T-GPPS 1540 is well-suited for glossy-layer coextrusion applications.
Applications:
- Packaging articles
- Petri dishes
- Office equipment
- Pen barrels
- Crisper boxes for refrigerators
- Cups for gloss layer coextrusion
- Anionic styrene-butadiene copolymer dilution
Physical and Mechanical Properties:
| Property | Unit | Test Method | Typical Value |
|---|---|---|---|
| MELT FLOW INDEX (200°C 5KG) | g/10min | ASTM D-1238 | 11 |
| STYRENE RESIDUAL MONOMER | PPM | ATOFINA Test | <500 |
| VICAT SOFTENING POINT (50 °C/hr 1kg) | °C | ASTM D-1525 | 91 |
| ROCKWELL HARDNESS | – | ASTM D-785 | SCALE/L70 |
| TENSILE STRENGTH AT BREAK | MPA | ASTM D-638 | 42 |
| ELONGATION AT BREAK | % | ASTM D-638 | 2 |
| TENSILE MODULUS | MPA | ASTM D-638 | 3100 |
Additional Notes:
- All values are typical and should not be construed as specifications. Users should 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.
- For injection molding products sensitive to moisture, granules of GPPS can be dried at 70°C for 2-4 hours.
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