| 分散相含量对乙烯-醋酸乙烯酯共聚物/聚丙烯原位微纤复合材料微纤形态、结晶行为及流变和力学性能的影响 |
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| 引用本文： | 张婷婷,董珈豪,王蒙,韦良强,秦舒浩.分散相含量对乙烯-醋酸乙烯酯共聚物/聚丙烯原位微纤复合材料微纤形态、结晶行为及流变和力学性能的影响[J].材料导报,2018,32(12):2032-2037. |
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| 作者姓名： | 张婷婷 董珈豪 王蒙 韦良强 秦舒浩 |
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| 作者单位： | 贵州大学材料与冶金学院;国家复合改性聚合物材料工程技术研究中心 |
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| 基金项目： | 国家自然科学基金(51363002) |
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| 摘 要： | 利用微纳层叠共挤出装置成功制得EVA/PP原位微纤复合材料(MFCs),并对其微纤形态、力学性能、结晶性能和流变行为进行了研究。结果表明:PP在EVA中能够形成微纤,且随PP含量增加,直径较大的微纤数量显著增多,MFCs的储能模量(G′)和损耗模量(G″)都相应增大。且当PP含量低于10%(质量分数,下同)时,复合材料体系是部分相容的,但当PP含量超过10%时,体系发生相分离现象。PP微纤能够有效提高EVA的拉伸强度。当PP含量为20%时,拉伸强度最大,为16.71MPa,比纯EVA树脂提高了42.9%。差示扫描量热法(DSC)测试显示PP微纤会阻碍EVA的结晶行为,使MFCs的结晶度降低。
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| 关 键 词： | 微纤形态 力学性能 结晶行为 流变性能 分散相 乙烯-醋酸乙烯酯(EVA)共聚物 聚丙烯 微纤复合材料(MFCs) |
Dispersed Phase Content of Ethylene-vinyl Acetate Copolymer/Polypropylene (EVA/PP) In-situ Microfibrillar Composites (MFCs):Influences to Microfiber Morphology, Crystallization Behavior, Rheological and Mechanical Properties |
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| ZHANG Tingting,DONG Jiahao,WANG Meng,WEI Liangqiang and QIN Shuhao.Dispersed Phase Content of Ethylene-vinyl Acetate Copolymer/Polypropylene (EVA/PP) In-situ Microfibrillar Composites (MFCs):Influences to Microfiber Morphology, Crystallization Behavior, Rheological and Mechanical Properties[J].Materials Review,2018,32(12):2032-2037. |
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| Authors: | ZHANG Tingting DONG Jiahao WANG Meng WEI Liangqiang and QIN Shuhao |
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| Affiliation: | College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025;National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014,National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014,College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025;National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014,National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014 and College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025;National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014 |
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| Abstract: | |
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| Keywords: | microfiber morphology mechanical properties crystallization behavior rheological properties dispersed phase ethylene-vinyl acetate (EVA) copolymer polypropylene microfibrillar composites (MFCs) |
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