Preparation method of conductive coatings for communication equipment

Abstract

The invention discloses a preparation method of conductive coatings for communication equipment. The method comprises the following steps: a, adding water-soluble resin, water-based dispersant, deionized water, graphene and graphite into a ball mill at a constant temperature under normal pressure for mixing and ball-milling to obtain a mixture 1; b, adding a doping agent, a curing agent and an aminosilane coupling agent into the mixture 1 and evenly mixing, pouring into a stirrer to be fully stirred and mixed, then carrying out dispersion treatment by using a three-roller milling machine, grinding by using the three-roller milling machine, and sieving to obtain a mixture 2; c, adding an antifoaming agent, a leveling agent and a thickening agent into the mixture 2, and fully stirring and mixing to obtain a final product. The preparation method disclosed by the invention is simple in process, and the product has the advantages of high price-quality ratio, environment protection and the like.

Description

technical field [0001] The invention belongs to the technical field of conductive paint, and in particular relates to a preparation method of conductive paint used for communication equipment. Background technique [0002] Conductive coatings are special functional coatings that have developed rapidly with modern science and technology. my country began to research and apply conductive coatings in the 1950s. In recent decades, conductive coatings have been used in electronics, electrical appliances, aviation, chemicals, It is used in various military and civilian industrial fields such as printing. [0003] The generation and accumulation of static electricity has brought a lot of troubles, even disasters, to modern life, production and scientific activities. If a large amount of accumulated static charge cannot be released in time, it will damage the circuit, damage electrical equipment, and even generate electric sparks, causing fires, explosions and other accidents, causi...

AI Technical Summary

Problems solved by technology

Metal powders are generally silver, copper, nickel and other metal powders. The disadvantages are high density, easy to precipitate and difficult to disperse. Carbon-based materials mainly include conductive carbon black, graphite, carbon nanotubes and graphene, etc. The disadvantages are black color and difficult to disperse. Dispersed, doped metal oxide powders mainly include antimony-doped tin oxide (ATO), indium-doped tin oxide (ITO), aluminum-doped zinc oxide (ZAO), conductive mica, conductive titanium oxide and conductive barium sulfate, etc. The disadvantage of the material is that the conductivity is poor; in general, the traditional conductive coating preparation technology mainly has the following shortcomings: first, the conductive filler is not ideal, which is mainly manifested in poor conductivity or unstable conductivity or high price; Existing conductive coatings almost all use organic solvents as solvents, which seriously pollute the environment. Chinese patent CN101220240A proposes a method for preparing polyurethane antistatic anti-corrosion coatings. The conductive fillers are still traditional metal powder, graphite and conductive mica powder, etc. , and the solvent used is an organic solvent, which is not environmentally friendly