Aluminum-based anti-corrosion, anti-microbial adhesion superhydrophobic film and preparation method thereof
An anti-microbial and super-hydrophobic technology, applied in coatings, metal material coating processes, etc., can solve problems such as unfavorable preparation and popularization, expensive raw materials, poor corrosion resistance, etc., and achieve good self-cleaning properties and corrosion resistance, cost Inexpensive, low surface adhesion effect
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[0024] The AA5083 aluminum alloy was placed in ethanol and deionized water for 15 minutes, respectively, and then the aluminum material was polished by electrochemical means in a perchloric acid / ethanol solution with a volume ratio of 4:1. The polishing voltage was 20V, and the polishing time was 3min, the initial polishing temperature is 4°C. After the polishing treatment, it is washed with ethanol and deionized water successively, and the residual electrolyte on the surface is cleaned for use; the polished aluminum sheet is vertically placed in a hydrothermal reaction kettle, and an ammonia solution with a concentration of 2% (volume ratio) is poured Submerge the sample in a hydrothermal reaction kettle, place it in a constant temperature box after being sealed, and react at a temperature of 90°C for 5 hours, then take out the aluminum sheet and clean it with deionized water and ethanol in sequence; prepare perfluorodecane with a concentration of 1%. The ethanol solution of ...
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