| SGF/PP泡沫复合材料的发泡效果和力学性能 |
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| 引用本文： | 杨继年,李子全,王凌岩,刘晓蓓,刘劲松.SGF/PP泡沫复合材料的发泡效果和力学性能[J].南京航空航天大学学报,2010,42(1). |
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| 作者姓名： | 杨继年 李子全 王凌岩 刘晓蓓 刘劲松 |
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| 作者单位： | 南京航空航天大学材料科学与技术学院,南京,210016 |
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| 基金项目： | 南京航空航天大学科研创新基金(S0279-061)资助项目 |
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| 摘 要： | 用单螺杆挤出机及型内二步法发泡工艺制备了短玻璃纤维(Short glass fiber,SGF)增强聚丙烯(Polypropylene,PP)泡沫复合材料,研究了SGF的质量分数对泡沫复合材料的泡孔形貌、界面粘结和力学性能的影响。结果表明,SGF的引入提高了共混体系的熔体强度,能够获得泡径细小且分布均匀的闭孔结构;偶联剂的表面包覆改善了SGF与PP的相容性,显著增强了两者的界面结合;随着增强纤维的加入,SGF/PP泡沫复合材料的冲击韧度和抗弯强度均呈现先增后降的变化趋势,并在SGF的含量为20%时达到最大值;研究发现,适量的SGF在共混体系中分散均匀且与基体的界面结合和共混体系的发泡效果得到显著改善,决定了SGF/PP泡沫复合材料能够获得优异的力学性能。
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| 关 键 词： | 聚丙烯 泡沫复合材料 界面结合 力学性能 |
Foamed Results and Mechanical Properties of SGF/PP Foam Composites |
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| Yang Jinian,Li Ziquan,Wang Lingyan,Liu Xiaobei,Liu Jinsong.Foamed Results and Mechanical Properties of SGF/PP Foam Composites[J].Journal of Nanjing University of Aeronautics & Astronautics,2010,42(1). |
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| Authors: | Yang Jinian Li Ziquan Wang Lingyan Liu Xiaobei Liu Jinsong |
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| Institution: | College of Material Science and Technology/a>;Nanjing University of Aeronautics & Astronautics/a>;Nanjing/a>;210016/a>;China |
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| Abstract: | The short glass fiber(SGF) reinforced polypropylene(PP) foam composites are prepared and the influences of mass fraction of SGF on the cellular morphologies,interfacial adhesion and mechanical properties of foam composites are investigated.Results indicate that the melt strength of co-blend is improved by addition of SGF,facilitating the formation of finer cell structure with the reduced cell size and the increased cell density.The interfacial performance is enhanced owing to the improved compatibility betw... |
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| Keywords: | polypropylene foam composites interfacial adhesion mechanical properties |
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