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PS (gpps)

Description

General

Intrinsic brittle material under normal strain rates. Can be improved modification with rubber particles , see HIPS. Incineration heat value 40MJ/kg. The optimal temperature for processing is between 190 and 220ï¾°C. For warmpressing the temperature is 170 to 190ï¾°C

Properties

Chemical properties

Minimum value Maximum value Unit Sources
0.3 0.7 % Idemat 2003
%

Electrical properties

Minimum value Maximum value Unit Sources
100 160 kV/mm Idemat 2003
%
V
1.00E+022 1.00E+022 Ohm.mm²/m Idemat 2003

Manufacturing Properties

Minimum value Maximum value Unit Sources

Mechanical properties

Minimum value Maximum value Unit Sources
50 100 MPa Idemat 2003
MPa
MPa
1040 1050 kg/m³ Idemat 2003
2.8 4 % Idemat 2003
20 20 MPa Idemat 2003
0.35 0.45 Idemat 2003
0.27 5 J/cm Idemat 2003
700 800 MPa Idemat 2003
32 60 MPa Idemat 2003
MPa
MPa
3000 3500 MPa Idemat 2003

Optical properties

Minimum value Maximum value Unit Sources
1.58 1.59 Idemat 2003

Thermal properties

Minimum value Maximum value Unit Sources
80 98 °C Idemat 2003
°C
-10 90 °C Idemat 2003
1300 1300 J/kg.K Idemat 2003
0.14 0.16 W/m.K Idemat 2003
60 80 e-6/K Idemat 2003

Environment

2.64 mPt
0.35 Pt
1940 mELU
3.63 MJ/MJ
96.05 MJ
189.98 kg
0.03 kg
Data from about 10 plants producing 700000 tonne Polystyrene in 1994.

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