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TPSC Asia Pte Ltd. GPPS 1540

TPSC Asia Pte Ltd. GPPS 1540 is a high flow polystyrene for injection molding application. It offers low viscosity at high shear rate, that allows a good injectability, and a relatively high softening point.

Polymer Name: General Purpose Polystyrene (GPPS)

Processing Methods: Injection Molding

Melt Flow Index: 12.0 - 12.0 g/10 min

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Identification & Functionality

Chemical Family
Plastics & Elastomers Functions
Technologies

Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Typical Applications
  • Cutlery
  • Jewel Box
  • Toy

Properties

Physical Form
Mechanical Properties
ValueUnitsTest Method / Conditions
Unnotched Izod Impact Strength7.5kJ/m2D-256
Tensile Strength at Yield45MPaD-638
Elongation at Break2%D-638
Flexural Modulus3300MPaD-790
Rockwell HardnessL-70D-785
Typical Properties
ValueUnitsTest Method / Conditions
Unnotched Izod Impact Strength7.5kJ/m2D-256
Tensile Strength at Yield45MPaD-638
Elongation at Break2%D-638
Flexural Modulus3300MPaD-790
Rockwell Hardness-70Scale LD-785
Thermal Properties
ValueUnitsTest Method / Conditions
Vicat Softening Point 10N (T increase = 50 °C/h)364KD-1525
Heat Distortion Temperature348KD-648
Coefficient of Linear Thermal Expansion (10-5)0.0071m/KD-696
Electrical Properties
ValueUnitsTest Method / Conditions
Dielectric Strength135000kV/mD-149
Surface ResistivityMin. 10e+13Ohms -1
Miscellaneous Properties
ValueUnitsTest Method / Conditions
Density1040kg/m3D-792
Mold Shrinkage0.4 - 0.7%D-955
Water AbsorptionMax. 0.1%D-570
Injection Molding
ValueUnitsTest Method / Conditions
Barrel Temperature, Zone 1170 - 180°C
Barrel Temperature, Zone 2180 - 220°C
Barrel Temperature, Zone 3210 - 240°C
Barrel Temperature, Zone 4210 - 240°C
Barrel Temperature, Nozzle210 - 240°C
Rheological Properties
ValueUnitsTest Method / Conditions
Melt Flow Index (200 °C - 5 kg) 10.012kg/ 10 minD-1238
Spiral Flow at 220°C0.57mD-3123