Anticorrosive performance of waterborne epoxy coatings containing water-dispersible hexagonal boron nitride (h-BN) nanosheets | |
Department | 固体润滑国家重点实验室 |
Cui MJ(崔明君)1,3; Ren, Siming2,3; Chen, Jia2; Liu, Shuan2; Zhang GA(张广安)1; Zhao, Haichao2; Wang LP(王立平)2; Xue QJ(薛群基)1,2; Wang LP(王立平); Xue QJ(薛群基) | |
2017 | |
Source Publication | Applied Surface Science |
ISSN | 0169-4332 |
Volume | 397Pages:77-86 |
Abstract | Homogenous dispersion of hexagonal boron nitride (h-BN) nanosheets in solvents or in the polymer matrix is crucial to initiate their many applications. Here, homogeneous dispersion of hexagonal boron nitride (h-BN) in epoxy matrix was achieved with a water-soluble carboxylated aniline trimer derivative (CAT−) as a dispersant, which was attributed to the strong π-π interaction between h-BN and CAT−, as proved by Raman and UV–vis spectra. Transmission electron microscopy (TEM) analysis confirmed a random dispersion of h-BN nanosheets in the waterborne epoxy coatings. The deterioration process of water-borne epoxy coating with and without h-BN nanosheets during the long-term immersion in 3.5 wt% NaCl solution was investigated by electrochemical measurements and water absorption test. Results implied that the introduction of well dispersed h-BN nanosheets into waterborne epoxy system remarkably improved the corrosion protection performance to substrate. Moreover, 1 wt% BN/EP composite coated substrate exhibited higher impedance modulus (1.3 × 106 Ω cm2) and lower water absorption (4%) than those of pure waterborne epoxy coating coated electrode after long-term immersion in 3.5 wt% NaCl solution, demonstrating its superior anticorrosive performance. This enhanced anticorrosive performance was mainly ascribed to the improved water barrier property of epoxy coating via incorporating homogeneously dispersed h-BN nanosheets. |
Keyword | Hexagonal Boron Nitride Dispersion Carboxylated Aniline Trimer Anticorrosive Performance |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.apsusc.2016.11.141 |
Funding Organization | the National Key Basic Research Program (No.2014CB643302);“One Hundred Talented People” of the Chinese Academy of Sciences (Y60707WR04);National Natural Science Foundation of China (No. 41506098) |
Indexed By | SCI |
If | 3.387 |
Language | 英语 |
Funding Project | 低维材料摩擦学组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21433 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Zhao, Haichao; Wang LP(王立平); Xue QJ(薛群基) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
Recommended Citation GB/T 7714 | Cui MJ,Ren, Siming,Chen, Jia,et al. Anticorrosive performance of waterborne epoxy coatings containing water-dispersible hexagonal boron nitride (h-BN) nanosheets[J]. Applied Surface Science,2017,397:77-86. |
APA | Cui MJ.,Ren, Siming.,Chen, Jia.,Liu, Shuan.,Zhang GA.,...&薛群基.(2017).Anticorrosive performance of waterborne epoxy coatings containing water-dispersible hexagonal boron nitride (h-BN) nanosheets.Applied Surface Science,397,77-86. |
MLA | Cui MJ,et al."Anticorrosive performance of waterborne epoxy coatings containing water-dispersible hexagonal boron nitride (h-BN) nanosheets".Applied Surface Science 397(2017):77-86. |
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