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首页> 外文期刊>Journal of Applied Polymer Science >Properties of poly(ethylene terephthalate) and maleic anhydride-grafted polypropylene blends by reactive processing
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Properties of poly(ethylene terephthalate) and maleic anhydride-grafted polypropylene blends by reactive processing

机译：聚对苯二甲酸乙二醇酯与马来酸酐接枝聚丙烯共混物的反应性

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摘要

The properties of poly(ethylene terephthalate) (PET) and polypropylene (PP) blends and PET/maleic anhydride-grafted PP (MAgPP) reactive blends were investigated. Two blend systems were immiscible based on tan delta measured by dynamic mechanical analyzer (DMA). in case of PET/MAgPP blends, the reaction of ester groups of PET and MA sites on MAgPP occurred during melt mixing at 280 degrees C for 30 min. The reaction was confirmed by a new peak between the glass transition temperatures of PET-rich and MAgPP-rich phase on tan delta curves, as well as from the rheological properties. From the morphology, the improvement of the dispersibility in PET/MAgPP reactive blends was observed. The :modulus of PET/MAgPP blends was higher than that of PET/PP blends, and the strength of PET/MAgPP blends showed the good adhesion compared with the PET/PP blends. (C) 1998 John Wiley & Sons, Inc. [References: 20]
机译：研究了聚对苯二甲酸乙二醇酯（PET）和聚丙烯（PP）共混物以及PET /马来酸酐接枝聚丙烯（MAgPP）反应性共混物的性能。基于动态力学分析仪（DMA）测得的损耗角正切，两种共混体系是不相容的。对于PET / MAgPP混合物，在280°C熔融混合30分钟期间，PET和MAgPP上MA位点的酯基反应发生。通过tanδ曲线上的富含PET的相和富含MAgPP的相的玻璃化转变温度之间的新峰值以及流变性质证实了该反应。从形态上观察到在PET / MAgPP反应性共混物中分散性的改善。 PET / MAgPP共混物的模量高于PET / PP共混物，与PET / PP共混物相比，PET / MAgPP共混物的强度显示出良好的粘合性。 （C）1998 John Wiley＆Sons，Inc. [参考：20]

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