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Water-based antirust paint and preparation method thereof

A water-based anti-rust paint, water-based acrylic technology, applied in anti-corrosion coatings, paints containing biocides, anti-fouling/underwater coatings, etc., can solve the problems of poor initial water resistance, poor anti-corrosion performance, high cost, and increase the density. , Increase hardness and wear resistance, improve the effect of compactness

Active Publication Date: 2017-12-26
西北永新涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a water-based anti-rust paint with good comprehensive anti-corrosion performance, small fineness, adjustable gloss and excellent initial water resistance, so as to solve the problems of poor anti-corrosion performance, slow drying, Poor initial water resistance and high cost

Method used

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  • Water-based antirust paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step A, preparation of paint paste: Add 25kg of water-based acrylic modified epoxy ester resin into the batching basin, start stirring at 400 rpm, add 1.2 kg of neutralizing agent, stir fully for 10min, adjust the pH value to 8, and pay attention to scraping the basin wall Resin, after the resin is evenly neutralized, add 30 kg of deionized water in 5 times, increase the stirring speed to 600 rpm, stir and disperse evenly, add 1.5 kg of dispersant, 0.2 kg of defoamer, and mix well, then add oxidation 18 kg of iron red, 4 kg of mica powder, 8 kg of zinc phosphomolybdate, 12 kg of precipitated barium sulfate, stirring and mixing for 20 minutes at a stirring speed of 800 / min, and then grinding and dispersing on a sand mill. The grinding temperature does not exceed 50°C. When the fineness is not thicker than 40um, add 1 kg of propylene glycol and stir evenly to obtain a paint slurry.

[0028] Step B, preparation of water-based anti-rust paint: add 10 kg of styrene-acrylic e...

Embodiment 2

[0031] Step A, preparation of paint paste: Add 20kg of water-based acrylic modified epoxy ester resin into the batching basin, start stirring at 300 rpm, add 1 kg of neutralizing agent and fully stir for 15 minutes, adjust the pH value to 8.5, pay attention to scraping the basin wall Resin, after the resin is evenly neutralized, add 25 kg of deionized water in 4 times, increase the stirring speed to 400 rpm, stir and disperse evenly, then add 1 kg of dispersant and 0.1 kg of defoamer, mix well and then add red iron oxide in turn 16kg, 2 kg of mica powder, 10kg of iron zinc phosphate, 10 kg of precipitated barium sulfate, stirring and mixing for 30 minutes at a stirring speed of 600 / min, and then grinding and dispersing on a sand mill. At 40um, add 2 kg of propylene glycol and stir evenly to obtain a paint slurry.

[0032]Step B, preparation of water-based antirust paint: Add 15 kg of styrene-acrylic emulsion to the paint slurry, adjust the stirring speed to 700 rpm, add 1.0 kg...

Embodiment 3

[0035] Step A, preparation of paint paste: Add 10kg of water-based acrylic modified epoxy ester resin into the batching basin, start stirring at 200 rpm, add 0.6kg of neutralizing agent and fully stir for 20min, adjust the pH value to 9, pay attention to scraping the basin wall Resin, after the resin is evenly neutralized, add 20 kg of deionized water in 3 times, increase the stirring speed to 300 rpm, stir and disperse evenly, then add 0.5 kg of dispersant and 0.25 kg of defoamer, mix well and then add iron oxide red in turn 14kg, 3 kg of mica powder, 6kg of zinc iron phosphate and zinc phosphomolybdate (ratio 1:1), 10 kg of precipitated barium sulfate, stirring and mixing for 25 minutes at a stirring speed of 700 / min, and then grinding and dispersing on a sand mill, grinding The temperature does not exceed 50°C, grind until the fineness is not greater than 40um, add 1.5kg of propylene glycol and stir evenly to obtain a paint slurry.

[0036] Step B, preparation of water-base...

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Abstract

The invention discloses waterborne antirust paint and a preparation method thereof. The waterborne antirust paint is prepared from, by mass, 10-25 parts of waterborne acrylic acid modified epoxy ester, 0.6-1.2 parts of neutralizer, 20-30 parts of deionized water, 0.5-1.5 parts of dispersing agents, 0.2-0.5 part of defoaming agent, 14-18 parts of iron oxide red, 2-4 parts of mica powder, 6-10 parts of modified zinc phosphate, 10-14 parts of precipitated barium sulphate, 1-2 parts of propylene glycol, 10-15 parts of styrene-acrylic emulsion, 0.5-1.0 part of coalescing agent, 0.5-1.0 part of waterborne flush rust prevention agent, 0.5-1.5 parts of thickening agents and 0.2-0.5 part of mildew prevention agent. The waterborne antirust paint is high in film hardness, good in adhesive force and excellent in corrosion-resistant performance and mechanical performance, dryness and initial water resistance of paint films are remarkably improved due to the addition of styrene-acrylic emulsion, and the flush rust restraining performance of paint films is improved due to the addition of the waterborne flush rust prevention agent. Water serves as the diluent for the waterborne antirust paint, VOC emission in production and construction projects is greatly reduced, and the waterborne antirust paint is safe, environmentally friendly and capable of being widely used for paint coating on the aspects of steel structures, pipelines, automobile parts and the like.

Description

technical field [0001] The invention belongs to the technical field of water-based paint, and in particular relates to a water-based antirust paint. Background technique [0002] my country's water-based coating technology level is far behind developed countries. So far, there is no mature technology in China. Key materials such as high-performance water-based resins still rely on imports, and high-efficiency water-based additives are almost blank. In terms of water-based paint production, most domestic large-scale paint manufacturers are limited to producing a certain amount of architectural latex paint and water-soluble electrophoretic paint. The total annual domestic coatings are about 14 million tons, but the total output of water-based industrial coatings is still less than 5% of the total output of coatings, and the market share is far below the 50% level of developed countries. [0003] At present, domestic industrial coatings are still mainly solvent-based coatings,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/10C09D125/14C09D5/08C09D5/14C09D7/12
Inventor 李华明肖菲贾雪艳安军孙学军
Owner 西北永新涂料有限公司
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