Preparation method of substrate with high temperature resistant hydrophobic conductive coating

Abstract

The invention relates to the technical field of conductive coatings and aims at providing a preparation method of a matrix with a high-temperature-resistant hydrophobic conductive coating. The method comprises the steps of spraying aluminum oxide sol composite slurry on the surface of a matrix by using a spraying method to form a matrix with a coating; and carrying out heat treatment on the matrix with the coating in a 600-DEG C high-temperature furnace for 40 minutes, and then, cleaning the surface of the matrix with deionized water to obtain the matrix with the high-temperature-resistant hydrophobic conductive coating. The preparation method disclosed by the invention is simple in process; raw materials are relatively low in cost and available; and the large-scale industrial production is easily realized. The matrix with the high-temperature-resistant hydrophobic conductive coating, prepared by using the preparation method, has the characteristics of high temperature resistance, hydrophobicity, high conductivity and pollution resistance.

Description

Technical field [0001] The invention belongs to the technical field of conductive coatings, and particularly relates to a method for preparing a substrate with a high-temperature resistant hydrophobic conductive coating. Background technique [0002] Conductive coating is a surface layer that is coated on the surface of non-conductive substrate to make it conductive. It can be used in industries, national defense, electronics and other fields such as anti-rust oil tanks and radomes. Since the 1950s, my country has independently developed conductive-related coatings. The problem of static electricity has always plagued China's industry. In order to completely reverse this dilemma, China developed the first batch of antistatic conductive coatings at that time. Most of the coatings used were carbon-based conductive coatings. Since the 1980s, the field of conductive coatings in my country has developed rapidly and has made great progress. For example, Xie Ming of the Kunming Preciou...

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Problems solved by technology

[0003] However, the conductive coatings commonly used in the industrial field are mainly coated with filled conductive coatings, and the main film-forming substances are mainly polymers, such as epoxy resins, acrylic resins, polyurethane resins, fluorocarbon resins, etc. And add a certain amount of organic matter such as coupling agent, plasticizer, thickener, etc., which makes the current conductive coating mostly used in the field of antistatic, and the conductivity is not enough to meet some fields that require high conductivity, especially Electronic field; and the current conductive coating is mainly used in normal temperature or low temperature environment, with poor high temperature resistance and easy to be stained

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