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文摘
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通过盐酸刻蚀、氨水浸泡和疏水长链接枝,成功构建得到接触角达154°、滚动角为6°的超疏水镁合金表面。利用接触角测试、扫描电镜观察、红外光谱分析、防黏附和电化学实验等分别对超疏水镁合金表面的润湿性能、表面微结构与化学组成、防黏附行为以及耐腐蚀性能进行了考察。结果表明:盐酸刻蚀和氨水浸泡使得镁合金表面产生了微-纳复合结构,而硬脂酸修饰使疏水烃基长链通过化学键接枝到具有微-纳复合结构的镁合金表面。正是由于其特殊的表面微结构和化学组成,使得超疏水镁合金表现出良好的防黏附和耐腐蚀性能。 |
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其他语种文摘
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A superhydrophobic magnesium alloy surface with a contact angle of 154° and a sliding angle of 6° was successfully prepared by hydrochloric acid etching, ammonia immersing, and long hydrophobic chains grafting. The surface wettability, microstructure and chemical composition, anti-adhesion behavior, and corrosion resistance were investigated by means of contact angle measurement, SEM observation, FT-IR analysis, anti-adhesion and electrochemical experiments respectively. Results show that the micro- and nano-scale multiple structure presents at the magnesium alloy surface after hydrochloric acid etching and ammonia immersing, while the long hydrophobic alkyl chains are grafted onto the micro- and nano-scale surface with chemical bonds upon stearic acid modification. Just based on the peculiar surface microstructure and chemical composition, the resulting superhydrophobic magnesium alloy surface possesses the excellent anti-adhesion behavior and corrosion resistance. |
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来源
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材料工程
,2016,44(1):66-70 【核心库】
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DOI
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10.11868/j.issn.1001-4381.2016.01.010
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关键词
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镁合金
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超疏水
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防黏附
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耐腐蚀
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地址
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兰州交通大学机电工程学院, 兰州, 730070
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-4381 |
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学科
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一般工业技术 |
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基金
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国家自然科学基金资助项目
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文献收藏号
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CSCD:5611944
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