MC尼龙/纳米Al_2O_3复合材料力学性能的研究  

STUDY ON MECHANICAL PROPERTY OF MC NYLON/NANO-Al_2O_3 COMPOSITE

作　　者：郑立允[1] 赵立新[1] 牛兰芹[1] 

机构地区：[1]河北工程学院机械系

出　　处：《工程塑料应用》2004年第8期12-14,共3页Engineering Plastics Application

基　　金：河北省教育厅自然科学研究项目 (Z2 0 0 3 10 3 )

摘　　要：采用原位聚合技术制备了纳米Al2 O3 增强单体浇铸 (MC)尼龙复合材料 ,用扫描电子显微镜观察其断口形貌及纳米粒子分布状况 ,并测试、分析了纳米Al2 O3 含量对材料力学性能的影响。结果表明 ,采用原位聚合技术可获得纳米粒子分布均匀、综合性能优良的纳米复合材料 ,当纳米Al2 O3 质量分数为 4 %时 ,MC尼龙 /纳米Al2 O3 复合材料的拉伸强度、冲击强度和弯曲强度均达到最大值 ,分别比纯MC尼龙提高了 19%、33%和 11%。MC nylon/nano-Al 2O 3 composites were prepared by in situ polymerization. Through scanning electron microscope, the nano-composites fructure morphology and nano-particle distribution were observed. The effects of nano-Al 2O 3 content on the mechanical properties of composites were analyzed. The results showed that the nano-composites of well dispersed particles and good integrative properties were obtained by in situ polymerization. And the tensile strength, impact strength, and flexural strength of MC nylon/nano-Al 2O 3 composites reached the maximum which were 119%, 133%, and 111% higher respectively than those of pure MC nylon, in the case of 4% nano-Al 2O 3 particles.

关 键 词：原位聚合 纳米复合材料 浇铸尼龙 复合材料 力学性能 

分 类 号：TB33[一般工业技术—材料科学与工程]