Liquid for enhancing dispersibility of aqueous coating pigment for wheel hub spraying, and preparation method thereof

Abstract

The invention discloses a liquid enhancing the dispersibility of an aqueous coating pigment for wheel hub spraying, and a preparation method thereof. The liquid is prepared from fibers, a dispersant, an antifoaming and decontaminating mixed solvent, a mildew preventing and bacterium killing agent, a viscosity reducer, a surface modifier, a metal ion chelating agent, a corrosion inhibitor, water, a naphthalenesulfonate-formaldehyde condensate, an acrylic acid-allyl polyoxyethylene ether-sodium p-styrene sulfonate terpolymer, a naphthalenesulfonic acid-styrene-maleic acid terpolymer, sodium dodecylbenzenesulfonate and potassium persulfate. The liquid has the following advantages: a coating which can be emulsified by the dispersing liquid to form a film makes solvent resin dissolved in an organic solvent, and the resin is dispersed in water with the help of an emulsifier through strong mechanical stirring in order to form an emulsion, so the pigment dispersibility of an aqueous coating is enhanced, and the surface tension is increased, thereby the latent heat of evaporation is large, that is, the influences of the temperature and the humidity on the coating are large; and the dispersing stability is good, the shear resistance is good, the electric conductivity is good, and the corrosivity is good.

Description

Technical field: [0001] The invention relates to an ordinary aluminum alloy wheel hub, in particular to a liquid for enhancing the dispersibility of water-based paint pigments used in wheel hub spraying and a preparation method thereof. Background technique: [0002] With the rapid development of the automobile industry, the requirements for energy saving and consumption reduction of modern automobiles are constantly increasing, safety and environmental protection regulations are becoming stricter, and the requirements for automobile lightweight are more urgent. Due to the wide use of aluminum alloy wheels, its beautiful, atmospheric and changeable shape design also adds a lot to the car. At present, in the Chinese auto market, the utilization rate of aluminum alloy wheels for cars has reached at least 70 shares of the total car market. According to relevant statistics, in 2003 this proportion was about 50 copies. Aluminum alloy is light in weight, high in strength, good i...

AI Technical Summary

Problems solved by technology

At present, the forming methods of aluminum alloy wheels mainly include casting method, forging method and spinning method, etc. This paper summarizes the research and application of various forming processes of aluminum alloy wheels. The forming process of various aluminum alloy wheels is discussed emphatically; the paint adopts the environmentally friendly powdery and water-based paint approved by the automobile factory, and the existing water-based paint has poor pigment dispersibility

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