Institutional Repository of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
| Multi-level self-healing ability of shape memory polyurethane coating with microcapsules by induction heating | |
Fan, Weijie1,3,4,6; Zhang, Yong4; Li, Weihua1,2; Wang, Wei1,5; Zhao, Xiaodong6; Song, Liying1
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| 2019-07-15 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
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| ISSN | 1385-8947 |
| Volume | 368Pages:1033-1044 |
| Corresponding Author | Li, Weihua(liweihua@qdio.ac.cn) ; Wang, Wei(wangwei8038@ouc.edu.cn) |
| Abstract | 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. |
| Keyword | Self-healing Shape-memory polyurethane Microcapsules Induction heating |
| DOI | 10.1016/j.cej.2019.03.027 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| WOS ID | WOS:000462769600097 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/154953 |
| Collection | 海洋环境腐蚀与与生物污损重点实验室 |
| Corresponding Author | Li, Weihua; Wang, Wei |
| Affiliation | 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 |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Recommended Citation 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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