High-temperature resistant hydrophobic material and preparation method thereof

Abstract

The invention discloses a high-temperature resistant hydrophobic material and a preparation method thereof; and the preparation method of the high-temperature resistant hydrophobic material adopts a magnetic filter cathode vacuum arc discharge method to deposit multiple film layers on the surface of a workpiece, and adopts a laser etching method to etch a texture on the surface of the workpiece after the deposition of the film layers, wherein the film layer deposition step and the texture etching step are alternately performed. The coating layers, prepared by the method, can improve the high-temperature oxidation resistance of materials while improving the surface hydrophobic performance of metal materials, and are excellent in mechanical performance, high in strength and long in service life. The method adopts the laser etching technology to continuously improve chemical components in the coating layers and local metallurgy state to form specific texture while using the magnetic filter cathode vacuum arc discharge technology to prepare the film layers, so that the oxidation resistance of the coating layers is further improved through the alternately distributed multilayer components.

Description

technical field [0001] The invention relates to the field of surface modification, in particular to a method for preparing an inorganic hydrophobic coating on a metal surface. The invention also relates to the high temperature resistant hydrophobic material prepared by the method. Background technique [0002] The icing of flight components is one of the important factors affecting the safety of the entire flight system. According to statistics, about 9% of aircraft accidents are caused by surface icing. If the aircraft flies under icing conditions, the flight quality and performance will be greatly affected. Icing not only adds weight to the aircraft and reduces propeller efficiency, which in turn reduces the engine's available thrust, but also interferes with airflow, causing increased drag and reduced lift. In the 1940s and 1950s, people did a lot of work on aircraft icing and anti-icing. On the one hand, they improved the anti-icing devices of aircraft, and on the othe...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that existing hydrophobic materials cannot be applied to high temperature environments above 500°C, and provide a method for preparing high-temperature-resistant hydrophobic materials. The prepared coating can improve the high-temperature resistance of materials while improving the surface hydrophobicity of metal materials. Oxidation properties, excellent mechanical properties, high strength, long service life

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