Acrylic acid cathode electrophoretic paint for producing composite coating and application thereof

Abstract

The invention discloses acrylic acid cathode electrophoretic paint for producing a composite coating and an application thereof. The acrylic acid cathode electrophoretic paint consists of the following components in percentage by mass: 40-60% of acrylic acid synthetic resin, 15-20% of curing agent, 15-20% of cosolvent, 3-6% of initiator, 5-10% of neutralizer and 10-15% of deionized water, wherein the curing agent is closed polyisocyanate; the cosolvent is an alcohol ether organic solvent; the initiator is azodiisobutyronitrile; the neutralizer comprises lactic acid and glacial acetic acid. The electrophoretic paint disclosed by the invention has the advantages of good leveling property, high throwing power, strong covering power against a base material and good binding force with the base material while the obtained film layer has good flexibility; a pulse magnetron sputtering vacuum coating method is adopted for vacuum plating; the adopted target materials include aluminum, titanium, zinc, chromium or alloy thereof, and the deposition speed is high; the film layer is silver white, can reach mirror plane brightness and has strong metal texture; the film layer is 1-2mum thick, the thickness is uniform and the phenomenon of skip plating is avoided; and moreover, the electrical conductivity is good, and a good foundation is laid for follow-up secondary electrophoresis.

Description

technical field [0001] The invention belongs to the technical field of metal decorative surface treatment, in particular to an acrylic cathodic electrophoretic paint for producing composite coatings and its application. Background technique [0002] Metal decorative surface treatment methods include electroplating, painting, oxidation coloring, electrolytic polishing, etc. These methods have been widely used in industrial, civil, national defense, aviation and other scientific and technological fields, and are closely related to our lives. However, these metal decorative treatments often need to be ground and polished first to obtain a bright substrate surface. These mechanical treatment methods will generate a lot of dust, which is harmful to human health and the environment; Heavy metals, cyanide, acid-base, organic matter, organic volatile solvents and other waste water, waste residue and waste gas that are harmful to the human body, although the "three wastes" treatment ...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of acrylic cathodic electrophoretic paint and application thereof for producing composite coating, aim to solve electroplating color is single, produce a large amount of toxic waste water, metal surface treatment processes such as spray coating, electrophoretic paint, vacuum electroplating are used alone and lack electroplating. Strong metal texture, spraying as the bottom layer material of vacuum plating has high utilization rate and low cost, produces VOC poisonous gas, poor operating environment for workers, no energy saving and no environmental protection

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