Colorless, Transparent, Robust, and Fast Scratch-Self-Healing Elastomers via a Phase-Locked Dynamic Bonds Design

doi:10.1002/adma.201802556

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	Colorless, Transparent, Robust, and Fast Scratch-Self-Healing Elastomers via a Phase-Locked Dynamic Bonds Design
	Lai, Yue 1,2; Kuang, Xiao 3; Zhu, Ping 1; Huang, Miaoming 1; Dong, Xia 1,2; Wang, Dujin 1,2
刊名	ADVANCED MATERIALS
	2018-09-20
卷号	30 期号:38
关键词	Disulfide Phase-locked Design Polyurethane Rapid Self-healing Transparency
ISSN号	0935-9648
DOI	10.1002/adma.201802556
英文摘要	Robust self-healing thermoplastic elastomers are expected to have repeated healing capability, remarkable mechanical properties, transparency, and superior toughness. The phase-locked design in this work provides excellent tensile mechanical properties and efficient healability at a moderate temperature due to the dynamic disulfide bonds embedded in the hard segments and mainly being locked in the viscoelastic hard microphase region. The self-healing elastomers exhibit a maximum tensile stress of 25 MPa and a fracture strain of over 1600%, which are quite prominent compared to previous reports. The nanoscale domains of the elastomer are smaller than the wavelength of visible light by microphase separation control resulting in colorless, nearly 100% transparency, and are as good as quartz glasses. The high dynamics of the phase-locked disulfide bonds renders a high healing efficiency of scratches on the surface within 60 s at 70 degrees C. The rapid scratch healing and complete transparency recovery of the elastomers provide new avenues in the highly transparent surface or protective films which finds potential applications for precision optical lenses, flexible display screens, and automobile or aircraft lighting finishes.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000444671900014
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/43033]
专题	中国科学院化学研究所
通讯作者	Dong, Xia
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, CAS Res Educ Ctr Excellence Mol Sci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Georgia Inst Technol, George W Woodruff Sch Mech Engn, Renewable Bioprod Inst, Atlanta, GA 30332 USA
推荐引用方式 GB/T 7714	Lai, Yue,Kuang, Xiao,Zhu, Ping,et al. Colorless, Transparent, Robust, and Fast Scratch-Self-Healing Elastomers via a Phase-Locked Dynamic Bonds Design[J]. ADVANCED MATERIALS,2018,30(38).
APA	Lai, Yue,Kuang, Xiao,Zhu, Ping,Huang, Miaoming,Dong, Xia,&Wang, Dujin.(2018).Colorless, Transparent, Robust, and Fast Scratch-Self-Healing Elastomers via a Phase-Locked Dynamic Bonds Design.ADVANCED MATERIALS,30(38).
MLA	Lai, Yue,et al."Colorless, Transparent, Robust, and Fast Scratch-Self-Healing Elastomers via a Phase-Locked Dynamic Bonds Design".ADVANCED MATERIALS 30.38(2018).