Aluminum oxide sol composite slurry

Abstract

The invention relates to the technical field of conductive coatings and aims at providing aluminum oxide sol composite slurry. The aluminum oxide sol composite slurry is prepared by mixing the following raw materials in percentage by weight: 20-50% of nanometer tin dioxide, 30-60% of nanometer aluminum oxide sol, 5-10% of nanometer silver powder, 10-30% of nanometer copper powder and 0.5-2% of a dispersing agent, wherein the mass concentration of the nanometer aluminum oxide sol is 20-25%. A preparation process disclosed by the invention is simple; raw materials are relatively low in cost and available; and the large-scale industrial production is easily realized. A coating product prepared from the aluminum oxide sol composite slurry 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, in particular to alumina sol composite slurry. Background technique [0002] Conductive coating is a surface layer coated on the surface of non-conductive substrates to make it conductive. It can be used in anti-rust oil tanks, radome and other industries, national defense, electronics and other fields. Since the 1950s, my country has independently developed conductive coatings. The problem of static electricity has always plagued China's industrial circles. In order to completely reverse this dilemma, China developed the earliest 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 made great progress. For example, Xie Ming of Kunming Institute of Precious Metals used advanced solidification and atomization technology to prepare ...

AI Technical Summary

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

Images