Multi-level self-healing ability of shape memory polyurethane coating with microcapsules by induction heating

doi:10.1016/j.cej.2019.03.027

	Multi-level self-healing ability of shape memory polyurethane coating with microcapsules by induction heating
	Fan, Weijie 1,3,4,6; Zhang, Yong 4; Li, Weihua 1,2; Wang, Wei 1,5; Zhao, Xiaodong 6; Song, Liying1
	2019-07-15
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	368 页码:1033-1044
通讯作者	Li, Weihua([email protected]) ; Wang, Wei([email protected])
摘要	A shape-memory polyurethane (SMPU) was designed and used in the field of self-healing coating due to the capability to recover to its permanent shape in a predefined way. This technique could be modified by two different kinds of microcapsules to improve the localized corrosion resistance of healed coating by induction heating. For this purpose, the SMPU was synthesized by solvent polymerization using isophorone diisocyanate (IPDI) as hard segments and polycaprolactone (PCL) as soft segments. The results obtained from dynamic mechanical thermal analysis (DMTA) displayed a phase-separation structure, which is consistent with the results of H-1 NMR characterization. The repeatable shape-memory measurements further demonstrated that the shape recovery of SMPU is above 75%. Appending some microcapsules embedding Alodine 5200 and a heat-generating agent into SMPU, adhesion of aluminum substrate with healed coatings could be greatly improved, as well as corrosion resistance. In addition, the heat released from the exothermic reaction between the heat-generating agent and oxygen are supplied to the shape-memory recovery of polyurethane. It was clear that the corrosion resistance evaluations (by electrochemical impedance spectroscopy and scanning Kelvin probe measurements) confirm that the modified shape memory polyurethane have comparable healing efficiencies (eta = 77.3%) and excellent self-healing performances.
关键词	Self-healing Shape-memory polyurethane Microcapsules Induction heating
DOI	10.1016/j.cej.2019.03.027
收录类别	SCI
语种	英语
资助项目	Qingdao National Laboratory for Marine Science and Technology[2017ASTCP-OS09]###169; AoShan Talents Outstanding Scientist Program###168; Natural Science Foundation of China[51525903]###167; Natural Science Foundation of China[51601188]###166; Natural Science Foundation of China[51601188]; Natural Science Foundation of China[51525903]; AoShan Talents Outstanding Scientist Program; Qingdao National Laboratory for Marine Science and Technology[2017ASTCP-OS09]
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000462769600097
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：80[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/154953
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Li, Weihua; Wang, Wei
作者单位	1.Chinese Acad Sci, CAS Key Lab Marine Environm Corros & Biofouling, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China 2.Sun Yat Sen Univ, Coll Chem Engn & Technol, Zhuhai 519082, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Naval Aeronaut Univ, Qingdao Branch, Qingdao 266041, Shandong, Peoples R China 5.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Shandong, Peoples R China 6.Yantai Univ, Sch Ocean, Yantai 264005, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Fan, Weijie,Zhang, Yong,Li, Weihua,et al. Multi-level self-healing ability of shape memory polyurethane coating with microcapsules by induction heating[J]. CHEMICAL ENGINEERING JOURNAL,2019,368:1033-1044.
APA	Fan, Weijie,Zhang, Yong,Li, Weihua,Wang, Wei,Zhao, Xiaodong,&Song, Liying.(2019).Multi-level self-healing ability of shape memory polyurethane coating with microcapsules by induction heating.CHEMICAL ENGINEERING JOURNAL,368,1033-1044.
MLA	Fan, Weijie,et al."Multi-level self-healing ability of shape memory polyurethane coating with microcapsules by induction heating".CHEMICAL ENGINEERING JOURNAL 368(2019):1033-1044.

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