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Aqueous environmental-friendly nanometer structure automobile priming paint and preparation method thereof

A nano-structured, environment-friendly technology, applied in the field of water-based environment-friendly nano-structured automotive primer and its preparation, can solve the problems of poor paint film compactness, large particle size of polymer emulsion, and great gap between protection and decoration effects, etc., to achieve The effect of dense paint film and good permeability

Inactive Publication Date: 2012-06-20
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Water-based automotive primers are more environmentally friendly than oil-based automotive primers, but the performance of most of the water-based paints currently reported cannot meet the standards of oil-based paints. This is mainly because the emulsions used are general traditional emulsions. The particle size of the emulsion is large, the compactness of the paint film is poor, and the protective and decorative effects are far behind the traditional oil-based automotive primer.

Method used

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  • Aqueous environmental-friendly nanometer structure automobile priming paint and preparation method thereof
  • Aqueous environmental-friendly nanometer structure automobile priming paint and preparation method thereof
  • Aqueous environmental-friendly nanometer structure automobile priming paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 40% of Nanopolymer Emulsion 1, 0.2% of wetting agent, 0.6% of dispersant, 0.03% of defoamer, 0.3% of pH regulator, 0.1% of preservative, 0.2% of antifungal agent Add 15.57% deionized water into the paint mixing tank, and disperse for 10 minutes at the speed of the disperser at 400-800 rpm. Then add 15% titanium dioxide, 8% iron oxide red, 5% mica powder, 3% barium sulfate, 2% kaolin, 5% talc, 0.5% zinc phosphate, at 800 rpm Disperse for 15 minutes at the speed of the disperser. Then use a sand mill to grind to a fineness of less than 60 μm. Add 3% drier according to the recipe, stir at 800 rpm for 5 minutes, and finally add 1.5% thickener to adjust the viscosity to pass, filter and pack with a 100-mesh filter.

Embodiment 5

[0032] Weigh 60% of Nanopolymer Emulsion 2, 0.3% of wetting agent, 0.5% of dispersant, 0.01% of defoamer, 0.25% of pH regulator, 0.2% of preservative, 0.1% of antifungal agent Add 8.54% deionized water into the paint mixing tank, and disperse for 10 minutes at the speed of the disperser at 400-800 rpm. Then add 10% titanium dioxide, 7% iron oxide red, 5% mica powder, 2.5% barium sulfate, 2% kaolin, 0.4% zinc phosphate, disperse 15% under the disperser speed of 800 rpm minute. Then use a sand mill to grind to a fineness of less than 60 μm. Add 2% drier according to the formula, stir at 800 rpm for 5 minutes, finally add 1.2% thickener, adjust the viscosity to pass, filter and pack with 100 mesh filter.

[0033] Table 1: Component composition embodiment 1-6 of the present invention

[0034]

[0035]

[0036] Table 2: Performance index of water-based environment-friendly nanostructured automotive primer prepared by formula

[0037]

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PUM

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Abstract

The invention relates to aqueous environmental-friendly nanometer structure automobile priming paint and a preparation method of the aqueous environmental-friendly nanometer structure automobile priming paint and belongs to the technical field of paint production. The paint comprises the following major ingredients in percentage by mass: 40 to 80 percent of nanometer polymer emulsion, 1 to 30 percent of pigment, 5 to 20 percent of inert anti-rust pigment, 0.1 to 2 percent of active anti-rust pigment, 5 to 20 percent of filling materials, 0.2 to 6 percent of auxiliary agents, 0.1 to 0.5 percent of pH regulating agents and the balance deionized water. A paint system consists of the water dispersing nanometer polymer emulsion with the grain size smaller than 100nm, the deionized water, the pigment, the inert anti-rust pigment, the active anti-rust pigment, the filling materials, the auxiliary agents and the like. The aqueous nanometer polymer emulsion consists of hydrophilic acrylate copolymers, hydrophobic copolymers, tru-sealer and deionized water, wherein the hydrophobic copolymers are one kind of material from epoxy polyester and unsaturated fatty acid or dry oil modified epoxy polyester. The novel aqueous automobile priming paint has the advantages of compact coating film, high thermodynamic and mechanical stability, good anti-corrosion performance, good weatherability and the like and can be comparable to the traditional oily automobile priming paint.

Description

technical field [0001] The invention belongs to the technical field of paint production, and in particular relates to a water-based environment-friendly nano-structure automobile primer and a preparation method thereof. Background technique [0002] Traditional automotive primers are mainly solvent-based paints. The organic solvents in solvent-based automotive primers contain a large number of substances harmful to the human body and the environment. During the production and automotive coating process, the volatilization of organic solvents will cause air pollution and fires. Security risks. With the enhancement of environmental protection awareness and the improvement of environmental protection regulations, water-based coatings with low VOC will become the development direction of automotive coatings in the future and will receive more and more attention. Primer is the first coat of automobile painting. The primer for automobile painting has high requirements on the perf...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D167/00C09D167/08C09D7/12
Inventor 张万喜陈广义魏志勇
Owner DALIAN UNIV OF TECH
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