Developments in High Temperature Plastics

Recently developed high temperature polymers, which can be considered for use in such applications include PI, fluorinated PI, PAI, PEI, PPS and its disulfide, PES and PSU, details of which are incorporated in Table 3.4. 

Polymer Max operating temperature (°C) Continuous use temperature (°C) Mould shrinkage (%) Heat distortion temperature (°C) Temperature at which weight loss starts (°C) 

PI Greater than 200 260 230 No heat loss between 370-430 °C. At temperatures of 316-538 °C, there is asustained retention of physical properties 

Organosilicon compounds Weight loss occurs between 250-260 °C in air, and at 380-400 °C under nitrogen 

HDPE xO Blend xO Blend xl Blend x2 Blend x3 Blend x4 Blend x5 Blend x6 

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