Room temperature-curing environment-friendly anticorrosive coating for circuit board and preparation method thereof

Abstract

The invention discloses a room temperature-curing environment-friendly anticorrosive coating for a circuit board and a preparation method thereof. The anticorrosive coating is prepared through complex formulation of the following raw materials by mass: 50 to 90 parts of a polyurethane modified alkyd resin, 20 to 80 parts of an environment-friendly solvent, 0.01 to 2.0 parts of a main drier, i.e., cobalt naphthenate, 0.01 to 3.0 parts of a secondary drier A which is one or two selected from the group consisting of zinc isocaprylate and zinc naphthenate, 0.01 to 6.0 parts of a secondary drier B which is one or two selected from the group consisting of zircon isocaprylate and zirconium naphthenate, 0.1 to 3.0 parts of a fluorescent agent and 0.01 to 2 parts of a stabilizing agent. The tri-proof coating for the circuit board provided by the invention uses a plant extract as a resin source and is prepared through complex formulation of the resin, the environment-friendly solvent, corresponding metal driers and other auxiliary agents. The prepared coating does not contain aromatic solvents like xylene and ethylbenzene and has the advantages of little smell, a fast curing speed, good adhesion and excellent electrothermal performance.

Description

technical field [0001] The invention relates to an anti-corrosion coating, in particular to an anti-corrosion coating for a room temperature curing environment-friendly circuit board, and also relates to a method for preparing the anti-corrosion coating. Background technique [0002] The three anti-paints commonly used in the market are mainly composed of silicone, polyurethane, acrylic resin, epoxy resin and other types. The traditional paint production process comes from the large chemical industry, so it is inevitable to introduce aromatic hydrocarbons such as xylene and ethylbenzene as solvents. This kind of solvent has a strong smell and is very harmful to the health of workers. The curing time, electrical properties, thermal properties, etc. cannot meet the increasingly sophisticated development of the electronics industry. Contents of the invention [0003] The purpose of the present invention is to solve the problem that aromatic solvents such as toluene and xyle...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to, aiming at the above-mentioned defects of the prior art, solve the problem that the existing conformal paint contains toluene, xylene, and other aromatic solvents that are harmful to health, and provide a room temperature curing environment-friendly anticorrosion coating for circuit boards. Relating to the method for preparing the anticorrosion coating