Enhancing corrosion protection properties of sol-gel coating by pH-responsive amino-silane functionalized graphene oxide-mesoporous silica nanosheets

被引：42

作者：

Xiong, Liangliang ^{[1
]}

Liu, Jianhua ^{[1
]}

Li, Yingquan ^{[1
]}

Li, Songmei ^{[1
]}

Yu, Mei ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

来源：

PROGRESS IN ORGANIC COATINGS | 2019年 / 135卷

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Amino-silane functionalization; Compatibility; pH-responsive release; Active protection; HYDROTHERMAL SYNTHESIS; EPOXY COATINGS; DRUG-RELEASE; NANOPARTICLES; INHIBITOR; PERFORMANCE; CONTAINERS; AA2024-T3; ALLOY; NANOCONTAINERS;

D O I：

10.1016/j.porgcoat.2019.06.007

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Amino-silane functionalized graphene oxide-ordered mesoporous silica nanocontainer was synthesized to load corrosion inhibitor benzotriazole, and the synthesized two-dimensional composite was named as fGS-BTA. Its compatibility and dispersion stability in sol solution was prominently reinforced by amino-silane functionalization. Meanwhile, amino-silane as pH-driven "nanogate" suppressed the premature leakage of inhibitor, which endowed fGS-BTA nanocomposite the stimuli-responsive release under alkaline condition. Electrochemical impedance spectroscopy of intact and scratched sol-gel coating filled with fGS-BTA nanosheets showed the enhanced barrier property and the active protection capacity.

引用

页码：228 / 239

页数：12

共 22 条

[21] Corrosion protection of Ti6Al4V by a composite coating with a plasma electrolytic oxidation layer and sol-gel layer filled with graphene oxide
Li, Tianlu
Li, Li
Qi, Jia
Chen, Fei
PROGRESS IN ORGANIC COATINGS, 2020, 144
[22] A new approach for enhancement of the corrosion protection properties and interfacial adhesion bonds between the epoxy coating and steel substrate through surface treatment by covalently modified amino functionalized graphene oxide film
Parhizkar, N.
Shahrabi, T.
Ramezanzadeh, B.
CORROSION SCIENCE, 2017, 123 : 55 - 75

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