| PP/POE共混物的毛细管和转矩流变行为 |
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| 引用本文： | 应继儒,刘生鹏,解孝林.PP/POE共混物的毛细管和转矩流变行为[J].高分子材料科学与工程,2009(9). |
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| 作者姓名： | 应继儒 刘生鹏 解孝林 |
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| 作者单位： | 华中科技大学化学与化工学院材料化学与服役失效湖北省重点实验室;湖北工业大学化学与环境工程学院; |
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| 基金项目： | 国家自然科学基金重大项目(20490220); 材料化学与服役失效湖北省重点实验室开放基金项目资助(200701) |
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| 摘 要： | 利用高压双管毛细管流变仪和Haake转矩流变仪研究了聚丙烯(PP)/乙烯-辛烯共聚物(POE)体系的流变行为,探讨了转速、剪切速率、温度及共混物的组成对熔体流变行为的影响。结果表明,两种方法所测得的熔体流变学结果基本一致,共混物熔体表现为假塑性流变行为。随着POE含量的增加,PP/POE共混物熔体的表观黏度和非牛顿指数表现为负偏差行为,粘流活化能则表现出正负偏差行为,说明PP与POE之间存在一定的相容性。
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| 关 键 词： | PP/POE共混物 转矩流变 毛细管流变 相容性 |
Capillary and Torque Rheological Behaviors of PP/POE Blends |
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| YING Ji-ru,LIU Sheng-peng,XIE Xiao-lin.Capillary and Torque Rheological Behaviors of PP/POE Blends[J].Polymer Materials Science & Engineering,2009(9). |
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| Authors: | YING Ji-ru LIU Sheng-peng XIE Xiao-lin |
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| Affiliation: | YING Ji-ru1,2,LIU Sheng-peng1,XIE Xiao-lin1(1. Hubei Key Laboratory of Materials Chemistry and Service Failure,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,China,2. School of Chemical and Environment Engineering,Hubei University of Technology,Wuhan 430068,China) |
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| Abstract: | The capillary and torque rheological behaviors of polypropylene (PP)/ethylene-octene copolymer (POE) blends were investigated by capillary and torque rheometer,respectively. The effects of rotor speed,shear rate,temperature and the composition of PP/POE blends on the rheological behaviors of PP/POE blend melts were discussed. The rheological results measured by the above two methods are almost similar. PP,POE and PP/POE blend melts are pseudoplastic fluids. With increasing the POE content in blends,their no... |
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| Keywords: | PP/POE blends capillary rheological behavior torque rheological behavior compatibility |
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