Corrosion proof impregnating varnish used for water-based metal components and manufacturing method thereof

Abstract

The invention discloses a corrosion proof impregnating varnish used for water-based metal components and a manufacturing method thereof. The corrosion proof impregnating varnish is made of de-ionized water, propanediol, dispersant, antifoaming agent, wetting agent, carbon black, iron oxide black, water borne acroid resin, water borne epoxy resin, dipropylene glycol butyl ether, propylene glycol ether and polyaniline water solution, polyaniline carrier particles or polyaniline emulsion. The manufacturing method comprises: the propanediol and the de-ionized water are mixed and stirred, and then added with the dispersant, the antifoaming agent, the wetting agent and the polyaniline water solution or the water solution of emulsion or carrier particles to be evenly mixed together; the carbon black and the iron oxide black are added in to the mixed solution to form uniform pigment paste which is then put into a blending tank after being ground to be evenly stirred; the obtained mixture is added with the water borne acroid resin, the water borne epoxy resin, the dipropylene glycol butyl ether and the propylene glycol ether to be stirred; finally, the stirred mixture is added with the de-ionized water to be diluted and ground. The invention has the advantages of high coating efficiency, stable coating quality, uniform paint film of dip coating, flat and smooth paint film, good hardness, strong adhesive attraction, good corrosion proof performance, excellent painting performance at edges and corners, no leaking painting, good salt mist resistance, environmental protection, low cost, etc.

Description

1. Technical field [0001] The invention relates to a special anti-corrosion dipping paint for polyaniline modified water-based metal components and a preparation method thereof. 2. Background technology [0002] Domestically produced metal components are mainly exported to Europe, America and other countries. The coating methods are mainly dip coating and flow coating. The stability of the paint liquid is high. After dip coating, the coating film is thin, generally 5-15um, and the anti-corrosion performance is relatively high. High, especially for metal components such as sofa expansion parts on indoor sofas, the paint used in the paint also has strict requirements on environmental protection, and does not contain phthalates, glycol ethers, halogenated hydrocarbons, benzene, etc. , toluene, xylene, ethylbenzene and other substances harmful to the human body, and does not contain toxic heavy metals such as lead, cadmium, chromium, and mercury. [0003] The coating paint for ...

AI Technical Summary

Problems solved by technology

[0003] The coating paint for metal components has been monopolized by Shanghai Lili Factory of Valspar Company in the United States. The paint for metal components produced by it is made of a single water-based acrylic resin, which meets the above environmental protection requirements. However, due to the Corrosion resistance and solvent resistance are poor. There are many problems in the process of use. The salt spray resistance is poor. The salt spray resistance of the paint film with a film thickness of 5-10um is only 8 hours. It is not suitable for spray coating, and the price is relatively high, which is difficult to accept in the current market. The water-based paint for metal components with the publication number CN 101255303A invented by our company has obviously improved the above problems, but it is still not enough in terms of anti-corrosion performance. Perfect