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

A plastic part, two-component technology, applied in the field of two-component single-coated chrome-plated plastic parts color paint and its preparation, can solve the problems of increasing process and cost, and achieve the effect of saving cost and process and good water resistance

Active Publication Date: 2013-02-27
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of operation increases the process and cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A preparation method of a novel two-component single-coat chrome-plated plastic paint, the method comprises the following process steps:

[0036] (1) By weight percentage, first weigh 33% hydroxyacrylic resin setalux1182, 2% dispersant DISBERBYK2000, and 10% solvent propylene glycol methyl ether acetate, and add them to the batching kettle in sequence, and stir for 15 minutes at a speed of 400r / min. Then add 2% carbon black (SPECIAL BLACK 6) slowly, accelerate to 800r / min after the addition is complete, disperse at high speed for 30 minutes, then transfer to a sand mill for grinding, and stop grinding when the fineness is less than 15 μm. This slurry is A component.

[0037] (2) Add 20% thermoplastic acrylic resin LR-7622 to the batching kettle, add component A, 3% epoxy resin NPES-901, 0.5% adhesion promoter Z-6020 at a speed of 400r / min, 5% barium sulfate (Blanc Fixe SP), 2% matting powder (C906), 4.5% toluene, accelerate to 800r / min after complete addition, and disp...

Embodiment 2

[0041] A preparation method of a novel two-component single-coat chrome-plated plastic paint, the method comprises the following process steps:

[0042] (1) First weigh 25% hydroxyacrylic resin setalux1385, 1% dispersant DISBERBYK110, and 10% solvent propylene glycol methyl ether acetate, then add them to the batching kettle in sequence, and stir for 15 minutes at a speed of 400 r / min. Then slowly add 14.5% R902+ titanium self-powder, accelerate to 800r / min after complete addition, disperse at high speed for 30 minutes, then transfer to sand mill for grinding, and stop grinding when the fineness is less than 15 μm. This slurry is A component.

[0043] (2) Add 15% thermoplastic acrylic resin AC-7450 to the batching kettle, add component A, 3% adhesion promoter Lubrizol 2063, 5% superfine talc powder, 2% Matting powder (C803), 4.5% toluene, accelerate to 800r / min after complete addition, disperse at high speed for 30min, this slurry is component B.

[0044] (3) Curing agent N3...

Embodiment 3

[0047] A preparation method of a novel two-component single-coat chrome-plated plastic paint, the method comprises the following process steps:

[0048] (1) First weigh 30% hydroxyacrylic resin setalux1252, 1% dispersant DISBERBYK163, and 10% solvent propylene glycol methyl ether acetate, and add them to the batching kettle in sequence, and stir for 15 minutes at a speed of 400 r / min. Then slowly add 3% K7090 phthalocyanine blue, accelerate to 800r / min after the addition is complete, disperse at high speed for 30 minutes, then transfer to a sand mill for grinding, and stop grinding when the fineness is less than 15 μm. This slurry is A component.

[0049] (2) Add 23% thermoplastic acrylic resin AC-7435 to the batching kettle, add component A, 3% epoxy resin D.E.R.671-X75, 0.5% adhesion promoter Z-6040 at a speed of 400r / min , 5% sericite, 2% matting powder ED50, 4.5% toluene, 10% butyl acetate, accelerate to 800r / min after complete addition, disperse at high speed for 30min, ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D163/00C09D7/12
Inventor 朱忠敏孙百成
Owner DONGLAI COATING TECH SHANGHAI
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