Corrosion protection of mild steel by one-step electrodeposition of superhydrophobic silica film
Corrosion protection of mild steel by one-step electrodeposition of superhydrophobic silica film
复制标题
一步电沉积超疏水二氧化硅薄膜对低碳钢的腐蚀防护
DOI：
10.1016/j.corsci.2014.04.026
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发表时间：
2014-08-01
影响因子：
8.3
通讯作者：
Hu, Ji-Ming
中科院分区：
文献类型：
--
作者：
Wu, Lian-Kui;Zhang, Xue-Fen;Hu, Ji-Ming
为了达到防腐蚀的目的，在低碳钢基体上沉积了超疏水二氧化硅薄膜。通过一步电沉积的无机/有机杂化溶胶-凝胶薄膜的四乙氧基硅烷和十二烷基三乙氧基硅烷混合溶胶-凝胶前体，作为同时产生的高粗糙度和低能量表面的结果，获得超疏水性。通过水接触角的变化、电化学阻抗谱的测量和铁溶解试验研究了在整个浸泡时间内的腐蚀性能。结果表明，超疏水膜为低碳钢界面提供了一种有效的阻隔涂层。(C)2014爱思唯尔有限公司版权所有。
Superhydrophobic silica films were deposited onto mild steel substrate for the purpose of corrosion protection. The superhydrophobicity was obtained by one-step electrodeposition of inorganic/organic hybrid sol-gel films from tetraethoxysilane and dodecyltriethoxysilane mixed sol-gel precursors, as a result of simultaneous generation of high roughness and low-energy surface. The corrosion performance was investigated by monitoring the change of water contact angle, by the electrochemical impedance spectroscopy measurements and by iron dissolution test over the whole immersion time. The results show that the superhydrophobic film provides an effective barrier coating for the mild steel interface. (C) 2014 Elsevier Ltd. All rights reserved.