General Purpose Polystyrene (GPPS)
General-purpose polystyrene (GPPS) is a material produced by polymerizing styrene monomer.
Features
General-purpose polystyrene (GPPS) is made by polymerizing styrene monomer. It is transparent, has a crystalline appearance and is produced using the suspension process. Its ease of forming makes it widely used in food packaging, refrigeration systems, audio and video equipment, consumer electronics, office equipment, medical devices and toys.
Detailed Information
Technical Specifications & Options
GPPS1160
| PROPERTIES | UNIT | TEST METHOD | TYPICAL VALUE |
|---|---|---|---|
| Melt Flow Index (200°C, 5 kg) | g/10 min | ASTM D-1238 | 2.5 |
| Residual Styrene Monomer | PPM |
CLG LABPSG004
(ATOFINA TEST METHOD)
|
<500 |
| Vicat Softening Point (50°C/h, 1 kg) | °C | ASTM D-1525 | 105 |
| Rockwell Hardness | - | ASTM D-785 | SCALE/L70 |
| Tensile Stress at Break | MPA | ASTM D-638 | 48 |
| Elongation at Break | % | ASTM D-638 | 3 |
| Tensile Modulus | MPA | ASTM D-638 | 3200 |
GPPS1540
| PROPERTIES | UNIT | TEST METHOD | TYPICAL VALUE |
|---|---|---|---|
| Melt Flow Index (200°C, 5 kg) | g/10 min | 11 | ASTM D 1238 |
| Residual Styrene Monomer | PPM | <500 |
CLGLABPSG004
(ATOFINA TEST METHOD)
|
| Vicat Softening Point (50°C/h, 1 kg) | °C | Min 89.5 | ASTM D 1525 |
| Rockwell Hardness | - | Scale L70 | ASTM D 785 |
| Tensile Strength at Yield | MPA | - | ASTM D 638 |
| Tensile Stress at Break | MPA | 45 | ASTM D 638 |
| Elongation at Break | % | 2 | ASTM D 638 |
| Flexural Modulus | MPA | 3000 | ASTM D 790 |
| Tensile Modulus | - | 3100 | ASTM D 638 |
| Refractive Index | - | 1.591 | ISO Method |
| Water Absorption | % | <0.1 | ASTM D 570 |
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