Water-assisted self-healing and property recovery in a natural dermal armor of pangolin scales

IMR OpenIR

	Water-assisted self-healing and property recovery in a natural dermal armor of pangolin scales
	Liu, Z. Q.; Jiao, D.; Weng, Z. Y.; Zhang, Z. F.; liuzq@imr.ac.cn; zhfzhang@imr.ac.cn
	2016
发表期刊	JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
ISSN	1751-6161
卷号	56 页码:14-22
摘要	Self-healing capacity, of which the inspiration comes from biological systems, is significant for restoring the mechanical properties of materials by autonomically repairing damages. Clarifying the naturally occurring self-healing behaviors and mechanisms may provide valuable inspiration for designing synthetic self-healing materials. In this study, water assisted self-healing behavior was revealed in a natural dermal armor of pangolin scales. The indentation damages which imitate the injury caused by predatory attack can be continuously mitigated through hydration. The healing kinetics was characterized according to the variations of indentation crater dimension and quantitatively described in terms of the viscoelastic behavior of biopolymer. The mechanical properties of original, damaged, and recovered scales in both dry and wet states were systematically evaluated by three-point bending and compared through statistical analysis. The hydration effects and mechanisms were explored by examining the dynamic mechanical properties and thermal behaviors. The promoted self-healing process can be attributed to the improved flexibility of macromolecules in the biopolymer. This study may stimulate useful self-healing strategies in bio-inspired design and aid in developing high-performance synthetic self healing materials. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[liu, z. q. ; jiao, d. ; weng, z. y. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Self-healing Hydration Viscoelasticity Dynamic Mechanical Properties Biopolymer
资助者	National Natural Science Foundation of China [51331007]; IMR SYNL-T.S. Ke Research Fellowship; China Postdoctoral Science Foundation [2014M561263]
收录类别	sci
语种	英语
WOS记录号	WOS:000371554200003
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75241
专题	中国科学院金属研究所
通讯作者	liuzq@imr.ac.cn; zhfzhang@imr.ac.cn
推荐引用方式 GB/T 7714	Liu, Z. Q.,Jiao, D.,Weng, Z. Y.,et al. Water-assisted self-healing and property recovery in a natural dermal armor of pangolin scales[J]. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,2016,56:14-22.
APA	Liu, Z. Q.,Jiao, D.,Weng, Z. Y.,Zhang, Z. F.,liuzq@imr.ac.cn,&zhfzhang@imr.ac.cn.(2016).Water-assisted self-healing and property recovery in a natural dermal armor of pangolin scales.JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,56,14-22.
MLA	Liu, Z. Q.,et al."Water-assisted self-healing and property recovery in a natural dermal armor of pangolin scales".JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS 56(2016):14-22.