| PP/EPDM-g-MAH/TPU共混物流变行为的研究 |
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| 引用本文： | 樊敏,陈金周,刘雪莹,刘玉坤,李新法,王经武.PP/EPDM-g-MAH/TPU共混物流变行为的研究[J].塑料工业,2004,32(11):43-45. |
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| 作者姓名： | 樊敏 陈金周 刘雪莹 刘玉坤 李新法 王经武 |
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| 作者单位： | 郑州大学材料工程学院,河南,郑州,450052 |
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| 摘 要： | 以EPDM g MAH为增容剂 ,采用熔融共混技术制备了热塑性聚氨酯弹性体 (TPU)增韧聚丙烯 (PP)材料 ,研究了PP/EPDM g MAH/TPU共混物的流变行为 ,重点讨论了增容剂EPDM g MAH对共混物流变行为的影响。结果表明 :共混物熔体的非牛顿指数n <1,且随EPDM g MAH用量的增加而减小 ,表观粘度随剪切速率和剪切应力的增大而降低 ,熔体符合假塑性流体的流动规律 ;温度升高 ,表观粘度降低 ;随着EPDM g MAH用量的增加 ,共混物的表观粘度升高 ,粘流活化能有所减小
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| 关 键 词： | EPDM-g-MAH 增容剂 熔融共混 制备 热塑性聚氨酯弹性体 流变行为 非牛顿指数 表观粘度 粘流活化能 TPU |
| 文章编号： | 1005-5770(2004)11-0043-03 |
| 修稿时间： | 2004年7月15日 |
Study of Rheological Behavior of PP/EPDM-g-MAH/TPU |
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| FAN Min,CHEN Jin-zhou,LIU Xue-ying,LIU Yu-kun,LI Xin-fa,WANG Jing-wu.Study of Rheological Behavior of PP/EPDM-g-MAH/TPU[J].China Plastics Industry,2004,32(11):43-45. |
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| Authors: | FAN Min CHEN Jin-zhou LIU Xue-ying LIU Yu-kun LI Xin-fa WANG Jing-wu |
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| Abstract: | Thermoplasti polyurethane (TPU) toughened PP was prepared by melt blending with EPDM-g-MAH as compatibilizer.The rheological behaviors of the prepared PP/EPDM-g-MAH/TPU blend were studied,with the emphasis on the effect of EPDM-g-MAH on the rheological properties of the blends.The results showed that the blend non-Newtonian index n <1,and decreased with the increase of the content of EPDM-g-MAH.The apparent viscosity of the blend decreased with the increase of the apparent shear rate and shear stress,in accordance with the flow law of pseudoplastic fluid,decreased with the rise in temperature, and increased with the increase of the content of EPDM-g-MAH in the blend,but the viscous flow activity energy decreased. |
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| Keywords: | PP EPDM-g-MAH TPU Blend Rheological Behavior Non-Newtonian Index Apparent Viscosity Viscous Flow Activity Energy |
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