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Physical and mechanical properties of Al(OH)(3)/polypropylene composites modified by in situ-functionalized polypropylene

机译:原位官能化聚丙烯改性的Al(OH)(3)/聚丙烯复合材料的物理和力学性能

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摘要

Al(OH)(3)/polypropylene (PP) composites modified by in situ-functionalized polypropylene (FPP) were prepared by a one-step melt-extrusion process. The effect of in situ FPP on the crystallization and melting behavior, melt-flow index, limiting oxygen index, thermal degradation, mechanical properties, and fracture morphology of Al(OH)(3)/PP composites was studied. Formation of in situ FPP resulted in a decreased crystallization temperature and melting point of PP in the composites, an increased melt-flow index, and improved tensile and flexural strengths of Al(OH)(3)/PP composites, whereas the thermal degradation behavior and limiting oxygen index was not been influenced. The impact strength of the Al(OH)(3)/PP composites modified by in situ FPP depended upon the content of the initiator, dicumyl peroxide, and the monomer, acrylic acid. 2002 John Wiley Sons, Inc. [References: 39]
机译:通过一步熔融挤出法制备了原位官能化聚丙烯(FPP)改性的Al(OH)(3)/聚丙烯(PP)复合材料。研究了原位FPP对Al(OH)(3)/ PP复合材料的结晶和熔融行为,熔体流动指数,极限氧指数,热降解,力学性能和断裂形态的影响。原位FPP的形成导致复合材料中PP的结晶温度和熔点降低,熔体流动指数增加,Al(OH)(3)/ PP复合材料的拉伸强度和弯曲强度提高,而热降解行为极限氧指数不受影响。原位FPP改性的Al(OH)(3)/ PP复合材料的冲击强度取决于引发剂过氧化二枯基和单体丙烯酸的含量。 2002 John Wiley Sons,Inc. [参考:39]

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