Polyurea/polyaniline hybrid shell microcapsules loaded with isophorone diisocyanate for synergetic self-healing coatings

被引：44
|
作者：
Li, Haiyan [1 ]
Feng, Yingying [1 ]
Cui, Yexiang [2 ,3 ]
Ma, Yingjie [1 ]
Zheng, Zhaoliang [4 ]
Qian, Bei [4 ]
Wang, Huaiyuan [1 ,2 ,3 ]
Semenov, Anton [5 ]
Shchukin, Dmitry [4 ,5 ]
机构：
[1] Northeast Petr Univ, Sch Chem & Chem Engn, Prov Key Lab Oil & Gas Chem Technol, Daqing 163318, Peoples R China
[2] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
[3] Tianjin Univ, State Key Lab Chem Engn, Tianjin 300072, Peoples R China
[4] Univ Liverpool, Stephenson Inst Renewable Energy, Dept Chem, Crown St, Liverpool L69 7ZF, Merseyside, England
[5] Gubkin Univ, 65-1 Leninsky Prospect, Moscow 19991, Russia
来源：
PROGRESS IN ORGANIC COATINGS | 2020年 / 145卷
基金：
俄罗斯科学基金会;
关键词：
Microcapsules; Isophorone diisocyanate; Polyaniline; Self-healing coatings; Synergistic effect; CORROSION PROTECTION; POLYANILINE COATINGS; HOLLOW MICROSPHERE; GRAPHENE OXIDE; IONIC LIQUID; PERFORMANCE; STEEL; MICROENCAPSULATION; NANOCONTAINERS; NANOCOMPOSITES;
D O I：
10.1016/j.porgcoat.2020.105684
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Polyurea/polyaniline (PU/PANI) hybrid shell microcapsules loaded with isophorone diisocyanate (IPDI) as core material were successfully synthesized by combining Pickering emulsion formation and interfacial polymerization. The self-healing coatings containing 10wt.% IPDI-loaded PU/PANI microcapsules showed a remarkable healing ability and corrosion protection for microcracks after 30 days of immersion in 10wt.% NaCl solution. EIS tests revealed that the impedance modulus of scratched coatings filled with 10wt.% IPDI-loaded PU/PANI hybrid shell microcapsules sustained at 10(6) Omega center dot cm(2) after 15 days of immersion in 3.5wt.% NaCl solution. The excellent anticorrosion performance was attributed to the effective synergistic effects of both conductive PANI and IPDI healing agent.
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页数：9
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