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Key Words:composites; dispersion; nanoparticles; HIPS
Abstract:The dispersion of TiO2 nanoparticles in high-impact polystyrene (HIPS) has been studied. The TiO2 nanoparticles obtained are in a uniform diameter of 20-50nm and an anatase phase. After being treated by a coupling agent of rear earth-aluminate, the TiO2 nanoparticles can be dispersed uniformly in HIPS by using a co-rotation twin-screw extruder and an injection mold. When the content of TiO2 nanoparticles in the composite is 1 wt.%, the optimal mechanical properties are obtained. When the content of TiO2 nanoparticles in the composite is higher than 1 wt. %, the tensile strength and the Charpy impact decrease because some of the TiO2 nanoparticles agglomerate and the bend strength and bend modulus have little hange.
Volume:26
Issue:2
Translation or Not:no
