Miscibility and Mechanical Properties of High-Impact Polystyrene Blended with Poly(α-olefin) Grease
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概要
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Small amount of impurities or contaminations in recycled plastic have a possibility to influence on mechanical properties of product. In this study, miscibility and mechanical properties of melt-blended high-impact polystyrene (HIPS) and poly(α-olefin) (PO)-based grease have been investigated. We have focused attention on the molecular weight (Mw) of PO, and the range of Mw for PO in the used greases was 690-8,500. Changes of glass transition temperature were observed for polystyrene and polybutadiene phases in the HIPS/grease blends, that indicated small amount of PO was solubilized into HIPS. When Mw of PO was higher than 5,000, insoluble excess PO acted as lubricant, and sample preparation was difficult since slipping between the polymer and chamber wall or screw occurred during melt blending. By this limitation in solubility of HIPS/grease, depression of mechanical properties such as flexural modulus and strength for the obtained blends was not remarkable. On the other hand, blends with high grease content could be obtained for PO with low Mw because of its good solubility with HIPS, as the result, their flexural properties were highly deteriorated than the original HIPS. Therefore, the grease containing high molecular weight PO has a smaller influence on the mechanical properties of HIPS/grease because of the limitation in solubility. Results of chemical stress crack tests for HIPS/grease were also explained by the miscibility of PO with HIPS.
- 一般社団法人 日本レオロジー学会の論文
- 2011-04-15
著者
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NAGATA Kenji
Department of Internal Medicine II, Faculty of Medicine, University of Miyazaki
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Nagata Kenji
Department Of Materials Science And Engineering Nagoya Institute Of Technology
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Nakanishi Eiji
Faculty Of Engineering Nagoya Institute Of Technology
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Nakanishi Eiji
Department Of Chemical Engineering Kansai University
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Sugimoto Hideki
Nagoya Inst. Technol. Nagoya Jpn
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Sugimoto Hideki
Department Of Agrobiological Science Faculty Of Agriculture Ehime University
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Hasegawa Hiroyasu
Nagoya Inst. Technol. Nagoya Jpn
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Inomata Katsuhiro
Department Of Polymer Chemistry Tokyo Institute Of Technology
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Ogiso Marika
Department of Materials Science and Engineering, Nagoya Institute of Technology
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Kobayashi Ayu
Department of Materials Science and Engineering, Nagoya Institute of Technology
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Hasegawa Hiroyasu
Department of Materials Science and Engineering, Nagoya Institute of Technology
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Inomata Katsuhiro
Department Of Materials Science And Engineering Nagoya Institute Of Technology
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Ogiso Marika
Department Of Materials Science And Engineering Nagoya Institute Of Technology
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Hasegawa Hiroyasu
Department Of Materials Science And Engineering Nagoya Institute Of Technology
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