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GPPS1540B by Tabriz Petrochemical Company is an easy flowing crystal, general purpose polystyrene (GPPS) grade with food contact approval. Designed for extrusion and injection molding applications. Suitable for improving extruder output and thermoforming cycle time when mixed with a super high impact polystyrene such as HIPS7240. Can be diluted with anionic styrene butadiene copolymer.
Details
PS
PS or GPPS (Polystyrene)
Electronics / Computers
Healthcare / Medical
Households products/ Consumer Goods > Boxes & crates
Packaging > Food - Cups & Pots
Stationary > Pens & Pencils
Thermoforming/ Vaccuum forming
Injection molding - thermoplastics
food contact approval
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Appearance Properties | |||
| Physical state | Granulated | ||
| Appearance | Transparent | ||
| Physical Properties | |||
| Shrinkage | 0.4 - 0.7 | % | 23°C |
| Bulk density | 0.6 | g/ml | mass at 20 °C |
| Residual monomers | <500 | PPM | |
| MFI | 11 | g/10min | 200°C, 5kg |
| Thermal Properties | |||
| Auto-ignition temperature | 490 | ºC | |
| Vicat softening temperature | 91 | ºC | 50°C/hr, 1kg |
| Dry Time | 120 - 240 | min | |
| Mechanical Properties | |||
| Tensile modulus-MD | 3100 | MPa | |
| Tensile strength | 42 | MPa | |
| Tensile elongation | 2 | % | at Break |
| Rockwell Hardness | L Scale | ||
| Chemical Properties | |||
| Lower explosion limit | 15 | g/m3 | for polymer dust < 63 μm |
| Process Properties | |||
| Drying Temperature | 70 | ºC | |
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