Abstract

A study is carried out to investigate the influences of compounding process and surface treatment on nanometre-sized TiO2 filled polystyrene. The compounding process is discussed with a torque rheometer. The TiO2 filler is surface-treated with a liquid titanate coupling agent. The effects of coupling agents on the mechanical, morphological, and thermal stability properties of TiO2/polystyrene(PS) nanocomposites were studied. Nanocomposites of different weight fractions are prepared, and their impact properties are evaluated. The unnotched impact strength increased. Surface treatment of TiO2 filler generally yielded nanocomposites of higher impact strength than untreated system.

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