| Rheology in Processing of in Situ Composites of Polypropylene and Low Melting Poing Metals |
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| 作者姓名： | 王钧 FUJie XIONGChuan-xi |
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| 作者单位： | Wuhan University of Technology |
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| 基金项目： | Supported by Foundation for University Key Teacher by the Ministry of Education |
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| 摘 要： | The low melting point metallic tin powder or alloy of tin and lead was blended with polypropy-lene. A kind of in situ composite has been prepared. The variations of torque were studied when the composites were mixed in Haake torque rheogeniometer. By way of capillary extrusion, effects upon rheology of the in situ com-posites of the low melting point metals (LMPM) and coupling agent for their different variety and content, were investigated. From flow curves, the results indicate that in situ composites mixed with the LMPM are a kind of pseudoplastic fluid. If the LMPM were melted, the higher the content of the LMPM , the lower apparent viscosity of composites. Meanwhile, when the coupling agent is added into composites, the viscosity of composite will go up first and drop then. This shows that the LMPM have a promoter flow action on the polypropylene.
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| 关 键 词： | 流变学 聚丙烯 熔点 流变性测定仪 毛细流动 |
| 收稿时间： | 21 November 2001 |
Rheology in processing of in situ composites of polypropylene and low melting poing metals |
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| Wang?Jun,Fu?Jie,Xiong?Chuan-xi.Rheology in Processing of in Situ Composites of Polypropylene and Low Melting Poing Metals[J].Journal of Wuhan University of Technology. Materials Science Edition,2002,17(2):93-96. |
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| Authors: | Wang Jun Fu Jie Xiong Chuan-xi |
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| Affiliation: | WANG Jim FU Jie XIONG Chuan-xiWuhan University of Technology |
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| Abstract: | The low melting point metallic tin powder or alloy of tin and lead was blended with polypropylene. A kind of in situ composite has been prepared. The variations of torque were studied when the composites were mixed in Haake torque rheogeniometer. By way of capillary extrusion, effects upon rheology of the in situ composites of the low melting point metals (LMPM) and coupling agent for their different variety and content, were investigated. From flow curves, the results indicate that in situ composites mixed with the LMPM are a kind of pseudoplastic fluid. If the LMPM were melted, the higher the content of the LMPM, the lower apparent viscosity of composites. Meanwhile, when the coupling agent is added into composites , the viscosity of composite will go up first and drop then. This shows that the LMPM have a promoter flow action on the polypropylene. |
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| Keywords: | low melting point metals polypropylene in situ composites rheology in processing |
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