Rheology and dispersion behavior of high-impact polystyrene/ethylene-vinyl acetate copolymer/TiO2 nanocomposites

被引：0

作者：

Wang, Zhaobo ^{[1
]}

Xie, Guangwen ^{[1
]}

Wang, Xin ^{[2
]}

Zhang, Zhikun ^{[1
]}

机构：

[1] College of Material and Environment, Qingdao University of Science and Technology, No. 53 Zhengzhou Road, Qingdao, 266042, China

[2] Key Laboratory of Rubber-Plastics, Ministry of Education, No. 53 Zhengzhou Road, Qingdao, 266042, China

来源：

Journal of Applied Polymer Science | 2006年 / 100卷 / 06期

关键词：

TiO2 nanoparticles were introduced into high-impact polystyrene (HIPS) in the form of a master batch in which TiO2 was predispersed in composites of HIPS and ethylene-vinyl acetate copolymer (EVA) by melt compounding. The resulting materials were analyzed with a Rosand Precision rheometer; transmission electron microscopy; atomic force microscopy; and ultraviolet-visible light spectrophotometry. The results showed that the introduction of TiO2 nanoparticles into HIPS influenced the apparent viscosity of the composites to a rather small extent. The addition of EVA could regulate the rheological behavior of the HIPS/TiO2 master batch greatly. EVA helped the dispersions of the agglomerates of TiO2 nanoparticles in the flow; this was featured by the distinct yielding in the flow after the introduction of EVA; as well as the large change in the non-Newtonian indices. The dispersions of the HIPS/TiO2 master batch in the HIPS matrix were improved greatly by the addition of EVA. TiO2 nanoparticles were dispersed randomly in HIPS/EVA/TiO2 nanocomposites. The dispersion improvement of the HIPS/EVA/TiO2 master batch was also proved by atomic force microscopy and ultravioletvisible spectroscopy investigations. The mechanical properties of HIPS/EVA/TiO 2 nanocomposites with low TiO2 contents were slightly higher than those of pure HIPS. © 2006 Wiley Periodicals; Inc;

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摘要：

Journal article (JA)

引用

页码：4434 / 4438