Foaming of Polystyrene/ Thermoplastic Starch Blends

  title={Foaming of Polystyrene/ Thermoplastic Starch Blends},
  author={Mihaela Mihai and Michel A. Huneault and Basil D. Favis},
  journal={Journal of Cellular Plastics},
  pages={215 - 236}
This study investigates the fabrication of extruded foams from polystyrene/thermoplastic starch (PS/TPS) blends. A specially designed twinscrew extrusion process is used for starch gelatinization, PS incorporation, polymer mixing, and blowing agent incorporation. In-line rheometry is used to monitor the viscosity of the TPS/PS blends and to evaluate the plasticizing effect of 1,1,1,2 tetrafluoroethane (HFC-134a) used as blowing agent. Differential scanning calorimetry, scanning electron… Expand
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