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Carbon fiber reinforced shape memory epoxy composites with superior mechanical performances

文献类型：期刊论文

作者Liu YY; Guo YF; Zhao J; Chen XD(陈晓东); Zhang H; Hu GQ(胡国庆); Yu X; Zhang Z
刊名COMPOSITES SCIENCE AND TECHNOLOGY
出版日期2019-06-16
卷号177页码:49-56
关键词Shape memory epoxy Carbon fiber Composites High stiffness
ISSN号0266-3538
DOI10.1016/j.compscitech.2019.04.014
通讯作者Zhao, Jun(zhaoj@nanoctr.cn) ; Yu, Xiang(yuxiang@cugb.edu.cn) ; Zhang, Zhong(zhong.zhang@nanoctr.cn)
英文摘要For the shape memory polymers' (SMPs) applications in demanding, high performance scenarios are usually limited by their poor mechanical performances during shape transformation. In this work, shape memory epoxy composites (SMEPCs) with superior mechanical properties are fabricated by adding various short and continuous carbon fibers (CFs) into neat shape memory epoxies (SMEPs) matrix. The resultant SMEPC's storage modulus (E) at room temperature is as high as 37 GPa, and the maximum recovery force exceeds 4.4 GPa, with good shape memory capabilities. These properties are at least an order of magnitude higher than those in existing typical SMP systems. The excellent mechanical properties of the fibers and their ability to retard crack propagation in the matrix are believed to play an important role in achieving high moduli below and above the shape-memory triggering temperature. The potential applications of such SMEPCs are demonstrated with wind blades. Experimental results and numerical models regarding air flow velocity variation as initiated by shape change in the blades indicate that our SMEPCs can sustain continuous stable mechanical state and provide variable wind speeds. These CF reinforced SMEPCs can be employed as smart structural materials to automatically switch shapes in response to the change in environment, such as those seen in aero foils and energy harvesters.
分类号一类
WOS关键词NANOCOMPOSITES ; POLYMERS ; BEHAVIOR
资助项目National Key Basic Research Program of China[2016YFA0301200] ; National Natural Science Foundation of China[11832010] ; National Natural Science Foundation of China[11225210] ; National Natural Science Foundation of China[11772343] ; Fundamental Research Funds for the Central Universities[53200859622]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000468252300007
资助机构National Key Basic Research Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
其他责任者Zhao, Jun ; Yu, Xiang ; Zhang, Zhong
源URL[http://dspace.imech.ac.cn/handle/311007/80717]  
专题力学研究所_非线性力学国家重点实验室
推荐引用方式
GB/T 7714		 Liu YY,Guo YF,Zhao J,et al. Carbon fiber reinforced shape memory epoxy composites with superior mechanical performances[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2019,177:49-56.
APA Liu YY.,Guo YF.,Zhao J.,陈晓东.,Zhang H.,...&Zhang Z.(2019).Carbon fiber reinforced shape memory epoxy composites with superior mechanical performances.COMPOSITES SCIENCE AND TECHNOLOGY,177,49-56.
MLA Liu YY,et al."Carbon fiber reinforced shape memory epoxy composites with superior mechanical performances".COMPOSITES SCIENCE AND TECHNOLOGY 177(2019):49-56.

入库方式： OAI收割

来源：力学研究所

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