氧化法制备超疏水-超亲油泡沫铜的研究

Research on Fabrication of Superhydrophobic-superoleophilic Cu Foam by Chemical Oxidation

基于泡沫铜内部大量的三维立体孔状结构特性,采用简单的化学氧化法在泡沫铜表面制备CuO、Cu2O膜,再用十六酸修饰,制备出水的静态接触角为156°,滚动角小于10°,油的静态接触角为0°的超疏水-超亲油泡沫铜。采用智能型拉曼光谱仪(DXR)、扫描电子显微镜(SEM)、能谱仪(EDS)和接触角、滚动角测量仪对泡沫铜表面的化学成分、形貌和疏水性进行了研究。结果表明,泡沫铜经氧化后,表面同时生成CuO和Cu2O;增加氧化时间可促进CuO和Cu2O的生成,形成纳米结构;当氧化时间为40 min时,泡沫铜表面形成均匀的纳米结构;经十六酸修饰后,氧化铜与十六酸发生自组装反应,生成了低表面能物质十六酸铜,具有优异的超疏水-超亲油特性以及较好的耐腐蚀性和耐水压性。

By simple chemical oxidation method in Cu foam surface preparation of CuO and Cu2 O film,the film was modified by palmitic acid,preparation of static water contact Angle is 156 °,rolling Angle is less than 10 °,oil of static contact Angle of 0 °of superhydrophobic-superoleophilic Cu foam based on a large number of three-dimensional porous structure characteristics of Cu foam. The chemical composition,morphology and hydrophobicity of Cu foam surface were studied by means of intelligent Raman spectrometer(DXR),scanning electron microscope(SEM),EDS,contact Angle and rolling Angle. The results showed that CuO and Cu2 O were formed on the surface of the Cu foam after oxidation. Increasing the oxidation time can promote the formation of CuO and Cu2 O and form nano structure. When the oxidation time was 40 min,uniform nanostructures were formed on the surface of the Cu foam. After modification by palmitic acid,cupric oxide and palmitic acid have self-assembly reaction to produce cupric hexadecanoate with low surface energy,which has excellent super superhydrophobic and superoleophilic,as well as good corrosion resistance and water pressure resistance.