Double-component single coating chrome plating plastic part colored paint and preparation method thereof

Abstract

The invention relates to a double-component single coating chrome plating plastic part colored paint and a preparation method thereof. The paint comprises, by weight, 2-20 % of pigment powders, 1-5 % of padding, 1-5 % of extinction powders, 20-35 % of hydroxy acrylic resins, 15-25 % of thermoplastic acrylic resins, 0-3 % of expoxy resins, 1-3 % of dispersing agents, 0.5-3 % of adhesion promoters, 15-25 % of solvents and 8-10 % of curing agents. The preparation method includes sequentially adding the hydroxy acrylic resins, the dispersing agents and 30-50wt.% of solvents into a burdening kettle, stirring, slowly adding the pigment powders, performing high-speed dispersing, then grinding by a sand mill to obtain a first slurry, adding the thermoplastic acrylic resins into the burdening kettle, stirring, sequentially adding the first slurry, the expoxy resins, the adhesion promoters, the padding, the extinction powders and 10-20wt.% of solvents, and performing the high-speed stirring to obtain a second slurry, adding the curing agents and residual solvents into the second slurry, and fully stirring to obtain the paint. Compared with paints in prior art, the paint has an excellent adhesive force on the chrome plating plastic parts and excellent water resisting property and weather resistance.

Description

technical field

[0001] The invention relates to a paint and a preparation method thereof, in particular to a two-component single-coat chrome-plated plastic color paint and a preparation method thereof. Background technique

[0002] With the rapid development of modern industry, electroplated plastics are widely used in all aspects of light industrial products such as automobiles, motorcycles, household appliance parts, plumbing equipment, small decorations, cosmetic packaging, and knobs. In order to decorate and beautify and protect the electroplating surface, a layer of decorative paint is often sprayed on its surface. In the field of automotive industry paint, at present, most of the chrome-plated plastic parts are painted in the form of two-coat operation, that is, firstly spray a layer of primer on the substrate, and then spray a layer of topcoat. This mode of operation has increased operation and cost. The invention discloses a novel preparation method of a two-compo...