阅读说明：本技术 一种在铝合金多孔氧化膜表面制备超疏水锂铝类水滑石涂层的方法 (Method for preparing super-hydrophobic lithium-aluminum hydrotalcite-like coating on surface of aluminum alloy porous oxide film ) 是由 于思荣 宋原吉 朱光 尹晓丽 王丽媛 王珺 于 2021-07-13 设计创作，主要内容包括：本发明涉及一种在铝合金多孔氧化膜表面制备超疏水锂铝类水滑石涂层的方法,属于金属材料表面改性领域。首先,对铝合金表面进行预处理、超声清洗；然后,配制电解液,以铝合金试样作为阳极,石墨作为阴极,通过阳极氧化工艺在铝合金表面制备多孔氧化膜；随后配制一定浓度的碳酸锂水溶液,将制备了多孔氧化膜的试样浸泡在其中,并水浴加热25-35min,在40-60℃下保温,获得锂铝类水滑石涂层；最后,将试样浸泡在月桂酸钠水溶液中进行化学修饰来降低其表面能,获得了超疏水性能,去离子水在该涂层表面的接触角超过150°,滚动角低于10°。该方法工艺简单,对试样形状和尺寸无特殊要求,成本低廉,易于推广。(The invention relates to a method for preparing a super-hydrophobic lithium-aluminum hydrotalcite-like coating on the surface of an aluminum alloy porous oxide film, belonging to the field of surface modification of metal materials. Firstly, pretreating and ultrasonically cleaning the surface of the aluminum alloy; then, preparing electrolyte, taking an aluminum alloy sample as an anode and graphite as a cathode, and preparing a porous oxide film on the surface of the aluminum alloy through an anodic oxidation process; then preparing a lithium carbonate aqueous solution with a certain concentration, soaking the sample with the prepared porous oxide film in the lithium carbonate aqueous solution, heating in a water bath for 25-35min, and preserving heat at 40-60 ℃ to obtain a lithium-aluminum hydrotalcite-like coating; and finally, soaking the sample in a sodium laurate aqueous solution for chemical modification to reduce the surface energy of the sample, so as to obtain super-hydrophobic performance, wherein the contact angle of deionized water on the surface of the coating exceeds 150 degrees, and the rolling angle is lower than 10 degrees. The method has the advantages of simple process, no special requirements on the shape and the size of the sample, low cost and easy popularization.)