EXTRUSION FOAMING OF TPVs USING WATER-FILLED POLYMERS

摘要

A novel, physical foaming agent, 'water filled polymer,' has been proven successful in producing low density foamed TPV profiles on standard single screw extruders. Extrusion processing parameters and physical properties (cell size, cell shape, tensile properties, specific gravity, compression load deflection, compression set, surface smoothness and water absorption) of TPV foamed profiles are reviewed. These results are compared to results from other types and forms of foaming agents used to produce foamed TPV profiles.