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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
Corresponding AuthorZhao, Jun(zhaoj@nanoctr.cn) ; Yu, Xiang(yuxiang@cugb.edu.cn) ; Zhang, Zhong(zhong.zhang@nanoctr.cn)
Source PublicationCOMPOSITES SCIENCE AND TECHNOLOGY
2019-06-16
Volume177Pages:49-56
ISSN0266-3538
AbstractFor 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.
KeywordShape memory epoxy Carbon fiber Composites High stiffness
DOI10.1016/j.compscitech.2019.04.014
Indexed BySCI ; EI
Language英语
WOS IDWOS:000468252300007
WOS KeywordNANOCOMPOSITES ; POLYMERS ; BEHAVIOR
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Composites
Funding ProjectNational 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]
Funding OrganizationNational Key Basic Research Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
Classification一类
Ranking5+
ContributorZhao, Jun ; Yu, Xiang ; Zhang, Zhong
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80717
Collection非线性力学国家重点实验室
Recommended Citation
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.
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