Carbon fiber reinforced shape memory epoxy composites with superior mechanical performances

doi:10.1016/j.compscitech.2019.04.014

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Carbon fiber reinforced shape memory epoxy composites with superior mechanical performances
	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
	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
DOI	10.1016/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
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关键词	NANOCOMPOSITES ; POLYMERS ; BEHAVIOR
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
内容类型	期刊论文
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.