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pH-Responsive zeolitic imidazole framework nanoparticles with high active inhibitor content for self-healing anticorrosion coatings
Yang, Shuo1; Wang, Jie3; Mao, Weiyao2; Zhang, Dawei2; Guo, Yugao3; Song, Yan1; Wang, Jun-Peng1; Qi, Tao1; Li, Guo Liang1
2018-10-20
Source PublicationCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN0927-7757
Volume555Pages:18-26
Abstract

Zeolitic imidazole framework (ZIF) is an emerging class of functional materials with promising nanostructures and applications in biomedicine and materials science. Herein we present a dynamic protective coating system with self-healing anticorrosion function, based on pH-responsive ZIF nanoparticles. Due to the advantage of high content of corrosion inhibitor in the ZIF-7 nanoparticles and its nature of pH-sensitivity, the ZIF-7 nanoparticles could quickly respond to the surrounding acid environment and release the linker as healing agent, led to a new barrier on scratched metal surfaces. The embedding and homogeneous distribution of the ZIF-7 nanoparticles in polymer coating system improved the corrosion resistance of carbon steel in 0.1 M hydrochloric acid solution in comparison to the control samples, as determined by electrochemical impedance spectroscopy (EIS). The self-healing anticorrosion property of dynamic polymer system was characterized during a simulated corrosion process by scanning electrochemical microscopy (SECM). The concentration of the embedded ZIF-7 nanoparticles was varied (0.5 - 7 wt %) to ascertain the optimum conditions for anticorrosion performance. The important effect of particle size and shape of ZIF-7 nanoparticles is discussed as well. The ZIF-7 based on dynamic protective polymer systems can interact with and adapt to the surrounding acid environment, leading to a new healed barrier on metal surfaces with anticorrosion functions.

KeywordSelf-healing Zif Nanoparticles Anticorrosion Dynamic Polymer Coating
DOI10.1016/j.colsurfa.2018.06.035
Language英语
WOS KeywordMild-steel Corrosion ; Controlled-release ; Smart Coatings ; Protection ; Nanocontainers ; Films ; Benzimidazole ; Derivatives ; Adsorption ; Nanotubes
Funding ProjectNational Key Research and Development Plan[2016YFC0303700] ; National Nature Science Foundation of China[41702255] ; One hundred Talents Program of the Chinese Academy of Sciences ; Beijing Nova program ; Beijing Municipal Natural Science Foundation[2182075]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Key Research and Development Plan ; National Nature Science Foundation of China ; One hundred Talents Program of the Chinese Academy of Sciences ; Beijing Nova program ; Beijing Municipal Natural Science Foundation
WOS IDWOS:000443153100003
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25871
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Dawei; Li, Guo Liang
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China
3.Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China
Recommended Citation
GB/T 7714
Yang, Shuo,Wang, Jie,Mao, Weiyao,et al. pH-Responsive zeolitic imidazole framework nanoparticles with high active inhibitor content for self-healing anticorrosion coatings[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2018,555:18-26.
APA Yang, Shuo.,Wang, Jie.,Mao, Weiyao.,Zhang, Dawei.,Guo, Yugao.,...&Li, Guo Liang.(2018).pH-Responsive zeolitic imidazole framework nanoparticles with high active inhibitor content for self-healing anticorrosion coatings.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,555,18-26.
MLA Yang, Shuo,et al."pH-Responsive zeolitic imidazole framework nanoparticles with high active inhibitor content for self-healing anticorrosion coatings".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 555(2018):18-26.
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