IMECH-IR  > 非线性力学国家重点实验室
Carbon fiber reinforced shape memory epoxy composites with superior mechanical performances
Liu, Yayun1,2; Guo, Yufeng1; Zhao, Jun1; Chen, Xiaodong3; Zhang, Hui1; Hu, Guoqing4; Yu, Xiang5; Zhang, Zhong1
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 ; SCI
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
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80718
Collection非线性力学国家重点实验室
Corresponding AuthorZhao, Jun; Yu, Xiang; Zhang, Zhong
Affiliation1.Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, CAS Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China
2.China Univ Geosci Beijing, Sch Engn & Technol, Beijing 100083, Peoples R China
3.Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China
4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
5.China Univ Geosci Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Liu, Yayun,Guo, Yufeng,Zhao, Jun,et al. Carbon fiber reinforced shape memory epoxy composites with superior mechanical performances[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2019,177:49-56.
APA Liu, Yayun.,Guo, Yufeng.,Zhao, Jun.,Chen, Xiaodong.,Zhang, Hui.,...&Zhang, Zhong.(2019).Carbon fiber reinforced shape memory epoxy composites with superior mechanical performances.COMPOSITES SCIENCE AND TECHNOLOGY,177,49-56.
MLA Liu, Yayun,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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