Product Overview
Hengli GPPS HLGP270N is a high-transparency, strong and heat-resistant grade for both extrusion and injection moulding.
Grade & Processing
Grade: HLGP270N. Polymer family: general-purpose polystyrene (GPPS). Material form: pellets. Suitable for injection moulding and/or extrusion as stated in the supplied TDS.
Typical Applications
- Transparent sheet
- Billboards
- Refrigerator drawers
- Daily-use transparent articles
Technical Data
| Property | Value / specification | Unit | Test method |
|---|---|---|---|
| Melt mass-flow rate | 1.9–2.7 (typical 2.52) | g/10 min | GB/T 3682.1 |
| Tensile stress | ≥ 51 (typical 52.8) | MPa | TDS |
| Charpy impact strength | ≥ 8.1 (typical 8.6) | kJ/m² | TDS |
| Vicat softening temperature | ≥ 96 (typical 103) | °C | TDS |
| Heat-deflection temperature | ≥ 90 (typical 96) | °C | TDS |
| Residual styrene monomer | ≤ 500 (typical 382) | mg/kg | TDS |
| Light transmittance | ≥ 89 (typical 90.3) | % | TDS |
| Moulding shrinkage | 0.3–0.6 (typical 0.5) | % | TDS |
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