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

文献类型：期刊论文

作者Fan, Weijie1,3,4,6; Zhang, Yong4; Li, Weihua1,2; Wang, Wei1,5; Zhao, Xiaodong6; Song, Liying1
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2019-07-15
卷号368页码:1033-1044
ISSN号1385-8947
关键词Self-healing Shape-memory polyurethane Microcapsules Induction heating
DOI10.1016/j.cej.2019.03.027
通讯作者Li, Weihua(liweihua@qdio.ac.cn) ; Wang, Wei(wangwei8038@ouc.edu.cn)
英文摘要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.
资助项目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
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000462769600097
源URL[http://ir.qdio.ac.cn/handle/337002/154953]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
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
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.

入库方式： OAI收割

来源：海洋研究所

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