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中文摘要：
通过熔融共混法制备了聚偏氟乙烯／聚丙烯／聚对苯二甲酸-乙二醇-1，4环己二醇酯（PVDF／PP／PETG）共混物，利用玄武岩纤维对其进行增强改性，并采用扫描电子显微镜、转矩流变仪、维卡软化点测试仪等测试仪器对共混物的形态、黏度、耐热性和力学性能等进行了研究。结果表明，230℃时，共混物中PVDF、PP和PETG属两两不相容体系，PVDF和PP呈现连续相结构，而PETG则以球状形态分散在体系中；经玄武岩纤维增强改性后，复合材料的拉伸强度和弯曲强度随着玄武岩纤维含量的增加而增大，且当其含量为30％（质量分数，下同）时，复合材料的拉伸强度和弯曲强度分别增加到44．0MPa和67．9MPa；共混物的维卡软化点从126．7℃提高到141．7℃。
英文摘要：
PVDF/PP/PETG/basalt fiber composites .were prepared by a melting blending method. The rheological behavior, morphology, mechanical properties, and heat resistance of the blends were investigated using rotary rheometer, scanning electron microscopy, material testing machine, and Vicat softening point machine in detail. It was found that PP, PVDF and PETG were pair-wise immiscible, in which PP and PVDF formed a bicontinuoud phase and PETG presented in the system as spherulite particles. The poor mechanical properties of PVDF/PP/PETG blends were improved after basalt fiber was introduced. The tensile strength and flexural strength of PVDF/ PP/PETG composite increased to 21. 9 MPa and 44 MPa when the content of basalt fiber was 30 wt%. Vicat softenilm ooint of PVDF/PP/PEtG composite was increased from 126.7 C to 141.7 ~C.
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Rheological properties, morphology, mechanical properties, electrical resistivity and EMI SE of cycl
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