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材料工程  2016, Vol. 44 Issue (7): 88-92    DOI: 10.11868/j.issn.1001-4381.2016.07.015
  测试与表征 本期目录 | 过刊浏览 | 高级检索 |
微滴包埋拉出法测定复合材料界面剪切强度的影响因素分析
乔月月1, 袁剑民1, 费又庆1,2
1. 湖南大学 材料科学与工程学院, 长沙 410082;
2. 湖南大学 汽车车身先进设计与制造国家重点实验室, 长沙 410082
Influence Factor Analysis on Microbond Test Measuring Interfacial Shear Strengths of Composites
QIAO Yue-yue1, YUAN Jian-min1, FEI You-qing1,2
1. College of Materials Science and Engineering, Hunan University, Changsha 410082, China;
2. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
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摘要 采用微滴包埋拉出测试的方法,分别测定两种不同表面性质中间相沥青基碳纤维与环氧树脂的界面剪切强度(σIFSS)。从负载-位移曲线读取树脂小球从碳纤维上脱落时的脱粘力值,并利用扫描电子显微镜观察了脱粘树脂小球和碳纤维的状态,然后定量地计算出σIFSS的平均值以及其标准方差、离散系数,并讨论了σIFSS同树脂小球的长度与直径、纤维直径的关系,研究发现:所测量的界面剪切强度值与环氧树脂小球的长径比正比,与纤维直径成反比,与环氧树脂小球的长度和纤维直径的比值反比,与环氧树脂小球的直径和纤维直径的比值成反比。
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乔月月
袁剑民
费又庆
关键词 微滴包埋拉出法界面剪切强度碳纤维环氧树脂    
Abstract:The interfacial shear strengths between two kinds of mesophase pitch-based carbon fibers and epoxy resin matrix were respectively measured by microbond test. The forces when microdebonding occurring between resin microdroplets and carbon fibers were obtained from the load-displacement curve,and the morphologies of debonded microdroplets and carbon fibers were observed by scanning electron microscopy. Then,the average interfacial shear strength,standard deviation and coefficient of variation for samples were quantitatively calculated. Moreover,the relationships between interfacial shear strength and the lengths, diameters of microdroplets, carbon fiber diameter were analyzed. The results show that interfacial shear strength is proportional to the ratio of length-to-diameter of the resin microdroplet,and inversely proportional to the carbon fiber diameter,to the ratio of the microdroplet length-to-carbon fiber diameter,and to the ratio of the microdroplet diameter-to-carbon fiber diameter.
Key wordsmicrobond test    interfacial shear strength    carbon fiber    epoxy resin
收稿日期: 2014-11-14      出版日期: 2016-07-19
中图分类号:  TQ342  
通讯作者: 袁剑民(1978-),男,博士,主要从事碳纤维的表面改性及聚合物基复合材料的研究,联系地址:湖南大学材料科学与工程学院(410082),E-mail:pangyuan2916@hnu.edu.cn     E-mail: pangyuan2916@hnu.edu.cn
引用本文:   
乔月月, 袁剑民, 费又庆. 微滴包埋拉出法测定复合材料界面剪切强度的影响因素分析[J]. 材料工程, 2016, 44(7): 88-92.
QIAO Yue-yue, YUAN Jian-min, FEI You-qing. Influence Factor Analysis on Microbond Test Measuring Interfacial Shear Strengths of Composites. Journal of Materials Engineering, 2016, 44(7): 88-92.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.07.015      或      http://jme.biam.ac.cn/CN/Y2016/V44/I7/88
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