Method for preparing metal surface super-hydrophobicity aluminum coating

Abstract

The invention discloses a method for preparing a metal surface super-hydrophobicity aluminum coating and aims to solve the technical problems that in existing metal aluminum surface super- hydrophobization treatment technologies, the treatment temperature is high, the vacuum environment is required, the cost is high, the treatment time is long, the damage to sample surface is severe during treatment and the like. The technical scheme includes that a micrometer and nanometer scale composite structure is constructed on a reactive metal based magnetron sputtering aluminum coating surface at the room temperature and within 10 minutes by a cathode current treatment method, then a sample is soaked in a molten tetradecanoic acid of 65 DEG C to 70 DEG C for 25 to 40 minutes, and superfluous tetradecanoic acids on the surface are cleaned out by ethanol to form a super-hydrophobic surface. The method has the advantages that the matrix temperature of a workpiece is low in operating process, the treatment process is simple, the equipment cost is low, the repeatability is good, the consumed time of preparation process is short, toxic pollutants are not generated, environmental protection and labor protection are facilitated, and the like.

Description

technical field [0001] The invention relates to a preparation technology for an anti-corrosion superhydrophobic aluminum coating on a metal surface, in particular to a superhydrophobic treatment method for an aluminum coating on the surface of a metal substrate. Background technique [0002] At present, metal anticorrosion methods include alloying, surface protection film (electroplating and brush plating coating, ion plating, organic coating, hot-dip coating, etc.), ion implantation and high-energy beam surface treatment, etc. For some metal substrates with high surface activity and corrosion, magnetron sputtering ion coating technology is often used to prepare protective coatings on their surfaces. Aluminum film is a commonly used anti-corrosion coating on metal surfaces. However, the magnetron sputtered aluminum coating is generally very thin (the thickness is usually several to tens of microns), and there are tiny pores. In a humid atmosphere, water vapor and other corro...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problems required in the existing metal aluminum surface superhydrophobic treatment technology, such as high treatment temperature, requirement of vacuum environment, high cost, long treatment time, and great damage to the sample surface during the treatment process, etc., and provides A method for preparing a superhydrophobic aluminum coating on a metal surface, the method has the advantages of low substrate temperature during operation, simple treatment process, low equipment cost, good repeatability, short preparation process time, no toxic pollutants, and is beneficial to the environment Advantages such as protection and labor protection

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