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
收藏
页码：228 / 239
页数：12
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