Complaint
GPPS
General Purpose Polystyrene is a kind of thermoplastic resin, is a colorless, odorless, tasteless, shiny, transparent beaded or granular solid. Density is 1.04 to 1.09, transparency is 88% to 92%, refractive index is 1.59 to 1.60. In the stress function, resulting in birefringence, the so-called stress - optical effect. Product of the melting temperature is 150 to 180 ° C, thermal decomposition teperature is 300 ° C, the heat distortion temperature is 70 to 100 ° C, long-term use temperature is 60 ~ 80 °C.
Physical properties of | Value/unit | Test standard | The test conditions |
The density of | 1.04 g/cm³ | ISO 1183 | |
The density of | 1.04 g/cm³ | ASTM D792 | |
Melt mass flow rate (MFR) | |||
200 ºC/5 Kg | 46 g/10 min | ASTM D 1238 | |
200 ºC/5 Kg | 46 g/10 min | ISO 1133 | |
Mechanical properties of | Value/unit | Test standard | The test conditions |
The tensile strength | |||
The yield (yld) | 4.9 Mpa | ASTM D638 | |
The yield (yld) | 4.9 Mpa | ISO 527-2 | |
Tensile elongation | |||
The yield (yld) | 3% | ASTM D638 | |
The yield (yld) | 3% | ISO 527-2 | |
The thermal performance | Value/unit | Test standard | The test conditions |
Vicat softening temperature (VICAT) | 101 °C | ASTM D1525 | Rate B (120°C/h), Loading 1 (10 N) |
Vicat softening temperature (VICAT) | 101 °C | ISO 306 | A120 |
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