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

被引：44

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：

中国国家自然科学基金; 北京市自然科学基金;

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

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