Reinforced anticorrosion performance of waterborne epoxy coating with eco-friendly L-cysteine modified Ti3C2Tx MXene nanosheets

被引：103

作者：

Li, Sihao ^{[1
]}

Huang, Haowei ^{[2
,3
]}

Chen, Fan ^{[1
]}

He, Xiaoling ^{[1
]}

Ma, Yanqi ^{[1
]}

Zhang, Li ^{[1
]}

Sheng, Xinxin ^{[1
,4
]}

Chen, Ying ^{[1
]}

Shchukina, Elena ^{[3
]}

Shchukin, Dmitry ^{[3
]}

机构：

[1] Guangdong Univ Technol, Sch Mat & Energy, Guangdong Prov Key Lab Funct Soft Condensed Matte, Guangzhou 510006, Peoples R China

[2] South China Univ Technol, Sch Chem & Chem Engn, Guangdong Prov Key Lab Green Chem Prod Technol, Guangzhou 510640, Peoples R China

[3] Univ Liverpool, Stephenson Inst Renewable Energy, Dept Chem, Crown St, Liverpool L69 7ZD, Merseyside, England

[4] Higher Educ Key Lab Phosphorus Chem Engn Yunnan P, Yunnan Prov Key Lab Energy Saving Phosphorus Chem, Kunming 650500, Yunnan, Peoples R China

来源：

PROGRESS IN ORGANIC COATINGS | 2021年 / 161卷

基金：

中国国家自然科学基金;

关键词：

Ti3C2Tx MXene; Functionalization; Waterborne epoxy coating; Corrosion resistant; L-cysteine; GRAPHENE OXIDE; COMPOSITE COATINGS; CORROSION PROTECTION; FUNCTIONALIZATION; FILMS; NANOCONTAINERS; NANOCOMPOSITES; POLYANILINE; RESISTANCE; GLYCINE;

D O I：

10.1016/j.porgcoat.2021.106478

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this study, MXene (Ti3C2Tx) nanosheets were modified by an amino acid (L-Cysteine) to fabricate functionalized MXene (fMX) hybrid material. Results derived from FTIR, XRD, EDS and XPS confirm that L-Cysteine has succeeded in covalently functionalizing MXene's surface. Later, fMX was introduced into the waterborne epoxy (WEP) coating as fillers, and its anti-corrosion performance was studied through electrochemical impedance spectroscopy and potentiodynamic polarization tests. After being immersed in 3.5 wt% NaCl solution for 30 days, fMX/WEP still maintains a higher impedance modulus at lowest frequency (1.21 x 10(9) Omega.cm(2)) and a lower corrosion rate (7.95 x 10(-6) mpy) compared to blank WEP. It is resulted from the well dispersion of fMX nanosheets in WEP matrix as well as the enhanced barrier properties offered by fMX. Our research provides a promising strategy for green modified MXene to improve the corrosion resistance of the coating.

引用

页数：12

共 56 条

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