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A kind of water-based metal matte baking paint with high alkali resistance and strong adhesion and its preparation and use method

A water-based, high-resistance technology, used in coatings, anti-corrosion coatings, and devices that apply liquid to surfaces, and can solve problems such as alkali resistance, ultra-low matte, and impact resistance.

Active Publication Date: 2019-09-06
中山蓝海洋水性涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the current actual industry and daily applications, water-based metallic baking varnish products with acrylic resin as the main agent are the most widely used. There is still room for further improvement

Method used

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  • A kind of water-based metal matte baking paint with high alkali resistance and strong adhesion and its preparation and use method
  • A kind of water-based metal matte baking paint with high alkali resistance and strong adhesion and its preparation and use method
  • A kind of water-based metal matte baking paint with high alkali resistance and strong adhesion and its preparation and use method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0059] The preparation method of the above-mentioned high alkali resistance and strong adhesion water-based metal matte baking varnish comprises the following process steps:

[0060] Add water-based acrylic modified epoxy ester resin, water, dispersant, wetting agent, part of defoamer, naphthalenesulfonic acid catalyst in the dispersion tank by weight percentage, disperse at a medium speed for 15 minutes, and then slowly add titanium dioxide and talc Powder, superfine calcium carbonate, sericite powder, aluminum zinc phosphomolybdate anti-rust pigment, add water to wash the tank wall, disperse at high speed for 20-50 minutes to fineness ≤ 50 microns; then add high methyl ether at medium and low dispersing speed Melamine formaldehyde resin, cosolvent, leveling agent, thickener, alkoxysilane adhesion promoter, matte powder and the rest of defoamer, dispersed at a medium speed for 30 to 45 minutes; after passing the test, filter and pack .

[0061] Further, the speed of medium-s...

Embodiment 1

[0065] A water-based metal matte baking varnish with high alkali resistance and strong adhesion, which consists of the following components by weight percentage:

[0066]

[0067]The process steps for preparing the above-mentioned high-alkali-resistant and strong-attached water-based metal matte baking varnish: add water-based acrylic modified epoxy ester resin, water, dispersant, wetting agent, part of defoamer, naphthalenesulfonate in the dispersion tank according to the above weight percentage Acid catalyst, disperse for 15 minutes at a medium speed of 600-800r / min; then slowly add titanium dioxide, talc powder, superfine calcium carbonate, sericite powder, aluminum zinc phosphomolybdate antirust pigment, add water to rinse the cylinder wall, high speed 1000 ~1500r / min disperse for 20~50 minutes until the fineness is ≤50 microns. Then add high methyl etherified melamine formaldehyde resin, co-solvent, leveling agent, thickener, alkoxysilane adhesion promoter, dumb powder...

Embodiment 2

[0071] A water-based metal matte baking varnish with high alkali resistance and strong adhesion, which consists of the following components by weight percentage:

[0072]

[0073] The process steps for preparing the above-mentioned high-alkali-resistant and strong-attached water-based metal matte baking varnish: add water-based acrylic modified epoxy ester resin, water, dispersant, wetting agent, part of defoamer, naphthalenesulfonate in the dispersion tank according to the above weight percentage Acid catalyst, disperse for 15 minutes at a medium speed of 600-800r / min; then slowly add titanium dioxide, talc powder, superfine calcium carbonate, sericite powder, aluminum zinc phosphomolybdate antirust pigment, add water to rinse the cylinder wall, high speed 1000 ~1500r / min disperse for 20~50 minutes until the fineness is ≤50 microns. Then add high methyl etherified melamine formaldehyde resin, co-solvent, leveling agent, thickener, alkoxysilane adhesion promoter, dumb powde...

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PUM

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Abstract

The invention provides a high-alkali-resistance and strong-adhesion aqueous metallic matt baking varnish, wherein an aqueous acrylic resin and a highly methylated melamine formaldehyde resin are subjected to cross-linked curing, and a naphthalenesulfonic acid catalyst, an alkoxysilane adhesion promoter and other auxiliary agents are added to obtain the aqueous metal baking varnish with characteristics of excellent flexibility, excellent adhesion and excellent impact resistance, wherein the compactness of the aqueous metallic baking varnish film can be enhanced and the rust resistance and the strong alkali corrosion of the paint film can be improved by grading the pigment filler and adding the functional environmental protection anti-rust pigment. The invention further provides a preparation method and a use method of the high-alkali-resistance and strong-adhesion aqueous metallic matt baking varnish.

Description

technical field [0001] The invention relates to the field of water-based metal baking varnish, in particular to a water-based metal matte baking varnish with high alkali resistance and strong adhesion and its preparation and use method. Background technique [0002] With the continuous advancement of industrialization and urbanization, environmental quality has an increasingly important impact on people's physical and mental health. People gradually realize that economic development cannot be at the expense of the environment, so they begin to pursue low-pollution or even non-pollution industrial development models. . The pollution caused by VOC released during the production and use of traditional solvent-based paints is currently listed as the main source of pollution in cities after cars. In recent years, in order to meet the requirements of environmental protection and energy saving, the development of low-VOC environment-friendly coatings is the development trend of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/10C09D161/32C09D7/61C09D7/63C09D5/08B05D7/24B05D3/02
Inventor 陈小文阙小玲蒋建平肖国钦蒋建伟
Owner 中山蓝海洋水性涂料有限公司
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