IMR OpenIR
Remarkable shape memory effect of a natural biopolymer in aqueous environment
Liu, Z. Q.; Jiao, D.; Zhang, Z. F.; liuzq@imr.ac.cn; zhfzhang@imr.ac.cn
2015
Source PublicationBIOMATERIALS
ISSN0142-9612
Volume65Pages:13-21
AbstractRemarkable water-stimulated shape memory effect was revealed in a natural biopolymer of peacock's tail covert feathers of which the innate shape can almost be fully recovered after severe deformation by a short hydration step. The shape memory effect manifests a good stability of high recovery rate and ratio during cycles of deformation and subsequent recovery. Both strength and energy absorption efficiency of medullary foam can be recovered despite the apparent decrease in the first deformation stroke caused by structural damage. A kinetic model developed from non-equilibrium thermodynamic fluctuation theory was adopted to describe the shape recovery process by considering the viscoelastic relaxation. The effects of hydration on mechanical properties, recovery kinetics, activation process and dynamic mechanical behaviors were also evaluated. Mechanisms were explored based on the lubrication, swelling effect and structural changes of macromolecular chains or segments in terms of their mobility. This study is expected to aid in understanding the responses of natural biological materials to environmental stimuli and to provide useful information for synthetic shape memory materials from the bio-inspiration perspective. (C) 2015 Elsevier Ltd. All rights reserved.
description.department[liu, z. q. ; jiao, d. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
KeywordShape Memory Viscoelasticity Mechanical Properties Keratin Biomimetic Material
Funding OrganizationNational Natural Science Foundation of China [51331007]; IMR SYNL-T.S. Ke Research Fellowship; China Postdoctoral Science Foundation [2014M561263]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75096
Collection中国科学院金属研究所
Corresponding Authorliuzq@imr.ac.cn; zhfzhang@imr.ac.cn
Recommended Citation
GB/T 7714
Liu, Z. Q.,Jiao, D.,Zhang, Z. F.,et al. Remarkable shape memory effect of a natural biopolymer in aqueous environment[J]. BIOMATERIALS,2015,65:13-21.
APA Liu, Z. Q.,Jiao, D.,Zhang, Z. F.,liuzq@imr.ac.cn,&zhfzhang@imr.ac.cn.(2015).Remarkable shape memory effect of a natural biopolymer in aqueous environment.BIOMATERIALS,65,13-21.
MLA Liu, Z. Q.,et al."Remarkable shape memory effect of a natural biopolymer in aqueous environment".BIOMATERIALS 65(2015):13-21.
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