| 微-纳米SiC/聚丙烯复合材料的制备与力学性能 |
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| 引用本文： | 陈慧敏,陈德良,张锐.微-纳米SiC/聚丙烯复合材料的制备与力学性能[J].稀有金属材料与工程,2009,38(Z2). |
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| 作者姓名： | 陈慧敏 陈德良 张锐 |
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| 作者单位： | 郑州大学,河南,郑州,450001 |
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| 摘 要： | SiC具有优异的力学与功能性能,作为增强相,在复合材料领域具有广阔的应用前景.采用双螺杆挤出、注塑成型方法制备了微-纳米SiC/聚丙烯(PP)复合材料.分别采用硅烷(KH-550)和钛酸酯(NDZ-201)两种偶联剂对微米(10 ìm)和纳米(50 nm) SiC复合粉体进行表面处理,研究了偶联剂、SiC粉体粒度及添加量对SiC/PP复合材料的弯曲强度、冲击强度、弯曲模量、弹性模量和热变形温度的影响.结果表明,经KH-550/NDZ-201混合偶联剂改性的微-纳米SiC粉体共同增强PP材料的综合力学性能最好,其弯曲强度、冲击强度、弯曲模量、弹性模量和热变形温度比纯PP材料分别提高了40%,8.7%,141%,142%和33%.经钛酸酯改性的SiC/PP复合材料的力学性能优于硅烷和混合偶联剂(KH-550/NDZ-201)改性的SiC/PP复合材料.
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| 关 键 词： | 聚丙烯 复合材料 力学性能 增强增韧 |
Fabrication and Mechanical Properties of Micro-/Nanosized SiC/PP Composites |
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| Chen Huimin,Chen Deliang,Zhang Rui.Fabrication and Mechanical Properties of Micro-/Nanosized SiC/PP Composites[J].Rare Metal Materials and Engineering,2009,38(Z2). |
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| Authors: | Chen Huimin Chen Deliang Zhang Rui |
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| Affiliation: | Chen Huimin,Chen Deliang,Zhang Rui (Zhengzhou University,Zhengzhou 450001,China) |
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| Abstract: | Micro-/nanosized SiC powders have excellent mechanical and functional properties,and have wide applications in the fields of composite materials as reinforcements. This paper reported the fabrication of micro-/nanosized SiC/PP composites through a process of melting extrusion and injection molding. The surfaces of micro-SiC and nano-SiC powders were modified by silane (KH-550),titanate (NDZ-201) coupling agents or their mixtures. The effects of the coupling agents and the mass fractions of SiC addition on t... |
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| Keywords: | SiC silicon carbide polypropylene composite materials mechanical properties strengthening and toughening |
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