氧化锌超疏水薄膜的制备及其耐久性

发布时间：2018-03-08 09:40

本文选题：氧化锌　切入点：超疏水薄膜　出处：《材料保护》2017年04期 　论文类型：期刊论文

【摘要】：为了提高氧化锌(ZnO)纳米疏水膜层在实际应用中的耐久性能,采用水热法在铝基底表面制备出微纳米结构的ZnO超疏水薄膜,利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)和接触角测量仪对所得ZnO薄膜的成分、微观结构及润湿性能进行分析;利用UMT摩擦磨损试验机对薄膜的摩擦性能和机械疏水耐久度进行研究;并用CHI660E电化学工作站对超疏水试样在海水中的耐腐蚀性能进行测量分析。结果表明:制备的微纳米结构ZnO薄膜具有超疏水性,在未经低表面能物质改性的情况下,对水的静态接触角高达152°,滚动角仅为2°;摩擦磨损测试表明该薄膜在经过2 400磨损周期后仍能保持较高的静态接触角;电化学阻抗谱和Tafel曲线测试表明,该薄膜的确降低了铝在海水中的腐蚀速率,缓蚀率高达93.8%。
[Abstract]:Zinc Oxide (ZnO) in order to improve the durability of nano hydrophobic coating in practical application, preparation of micro nano structure ZnO super hydrophobic film on aluminum substrate prepared by hydrothermal method using X ray diffraction (XRD), scanning electron microscopy (SEM) and contact angle measurements of the ZnO film components. Analysis of microstructure and wettability; using UMT to study friction and wear testing machine on the film friction performance and mechanical durability and hydrophobic; by CHI660E electrochemical workstation of super hydrophobic sample in the seawater corrosion resistance were measured and analyzed. The results showed that the micro nano structure ZnO thin films prepared with super hydrophobic, in the low surface energy materials modified under the condition of static contact angle to water up to 152 degrees, the rolling angle was only 2; the friction and wear test show that the film after 2400 in the static wear cycle can still keep high. The electrochemical impedance spectroscopy and Tafel curves show that the film does reduce the corrosion rate of aluminum in the sea water, and the corrosion inhibition rate is up to 93.8%.

【作者单位】：青岛理工大学机械工程学院;
【基金】：青岛市自然科学基金(11-2-4-4-(2)-JCH)资助
【分类号】：TG174.4

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