Low VOC waterborne epoxy zinc-rich primer and preparation method thereof

A technology of water-based epoxy zinc-rich primer, which is applied in the field of coatings, can solve the problems of poor storage stability of the container body, high specific gravity, high zinc content of water-based epoxy zinc-rich primer, etc., to achieve improved coating effect and low hygroscopicity , Improve the effect of storage stability

Inactive Publication Date: 2019-08-16
绵阳麦思威尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the VOC content of the water-based epoxy zinc-rich primer used in the market is 200-300g / L, which is relatively high, and the water-based epoxy zinc-rich primer has a high zinc content and a large specific gravity, resulting in poor storage stability of the container body. , usually delamination and agglomeration in about three months

Method used

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  • Low VOC waterborne epoxy zinc-rich primer and preparation method thereof
  • Low VOC waterborne epoxy zinc-rich primer and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A low-VOC waterborne epoxy zinc-rich primer, including A component and B component, the weight ratio of A component and B component is 5:2.

[0036] Among them, component A includes the following raw materials by weight: 2 parts of wetting and dispersing agent Levelol W-409, 5 parts of thickening agent NATROSOL Plus 330, 90 parts of isopropanol as film-forming aid, and 10 parts of leveling agent BYK-AQ , Anti-settling agent Bentone AD 60 parts, anti-settling agent AEROSIL R816 2 parts, 8500 mesh superfine talc 20 parts, 800 mesh zinc powder 1600 parts, epoxy curing agent resin ANCAMINE 1618 60 parts, adhesion promoter ADDID 900 12 parts , Catalyst CYCAT 4045 5 shares;

[0037] The B component includes the following raw materials by weight: 50 parts of deionized water, 3302 parts of thickener NATROSOL Plus, 1 part of wetting and dispersing agent Levelol W-409, modified bisphenol A epoxy emulsion Epikote6520-WH-53A 390 Parts, 1 part defoamer TEGO-901W, 1795 parts anti-flash r...

Embodiment 2

[0049] A low-VOC waterborne epoxy zinc-rich primer, including A component and B component, the weight ratio of A component and B component is 5:2;

[0050] Among them, component A includes the following raw materials by weight: 1.5 parts of wetting and dispersing agent Levelol W-409, 4 parts of thickening agent NATROSOL Plus 330, 90 parts of isopropanol as film forming aid, and 10 parts of leveling agent BYK-AQ , Anti-settling agent Bentone AD 60 parts, anti-settling agent AEROSIL R816 2 parts, 8500 mesh superfine talc 20 parts, 800 mesh zinc powder 1600 parts, epoxy curing agent resin ANCAMINE 1618 60 parts, adhesion promoter ADDID 900 12 parts , Catalyst CYCAT 4045 5 shares;

[0051] The B component includes the following raw materials in parts by weight: 50 parts of deionized water, 3303 parts of thickener NATROSOL Plus, 1.5 parts of wetting and dispersing agent Levelol W-409, and modified bisphenol A epoxy emulsion Epikote6520-WH-53A 390 Parts, 1 part of defoamer TEGO-901W, 17...

Embodiment 3

[0063] A low-VOC waterborne epoxy zinc-rich primer, including A component and B component, the weight ratio of A component and B component is 5:2;

[0064] Among them, component A includes the following raw materials by weight: 1 part of wetting and dispersing agent Levelol W-409, 3 parts of thickening agent NATROSOL Plus 330, 90 parts of isopropanol as film forming aid, and 10 parts of leveling agent BYK-AQ , Anti-settling agent Bentone AD 60 parts, anti-settling agent AEROSIL R816 2 parts, 8500 mesh superfine talc 20 parts, 800 mesh zinc powder 1600 parts, epoxy curing agent resin ANCAMINE 1618 60 parts, adhesion promoter ADDID 900 12 parts , Catalyst CYCAT 4045 5 shares;

[0065] The B component includes the following raw materials by weight: 50 parts of deionized water, 3304 parts of thickener NATROSOL Plus, 2 parts of wetting and dispersing agent Levelol W-409, and modified bisphenol A epoxy emulsion Epikote6520-WH-53A 390 Parts, 1 part of defoamer TEGO-901W, 1795 parts of an...

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Abstract

The invention provides a low VOC waterborne epoxy zinc-rich primer and a preparation method thereof. The primer comprises an A component and a B component, and the weight ratio of the A component to the B component is 2.5-3:1. The A component comprises the following raw materials in parts by weight: 0.5-2.5 parts of a wetting dispersing agent, 2.5-5.5 parts of a thickening agent, 80-100 parts of afilm-forming auxiliary agent, 8-12 parts of a leveling agent, 40-80 parts of an anti-settling agent, 16-24 parts of talc powder, 1500-1700 parts of zinc powder, 50-70 parts of an epoxy curing agent resin, 10-14 parts of an adhesion promoter, and 1-10 parts of a catalyst. The B component comprises the following raw materials in parts by weight: 3-5 parts of a thickening agent, 1-3 parts of a wetting dispersing agent, 280-320 parts of a modified bisphenol A type epoxy emulsion, 0.5-1.5 parts of a defoaming agent, and the like. The storage stability of the prepared low VOC waterborne epoxy zinc-rich primer is significantly improved, and the VOC content is remarkably lowered.

Description

Technical field [0001] The invention belongs to the technical field of coatings, and specifically relates to a low-VOC water-based epoxy zinc-rich primer and a preparation method thereof. Background technique [0002] Since the container body has to deal with the harsh weather at sea, the corrosion resistance of the container itself is very high, and the country has strict standards for the anti-corrosion layer on the surface of the container. Since April 1, 2017, the coating production line of the national standard dry cargo container manufacturer has changed from a solvent-based coating system to a water-based coating system, thus opening the first year of large-scale use of water-based container coatings. The supporting system of water-based container paint mainly includes 4 varieties of water-based epoxy zinc-rich paint, water-based interior paint, water-based intermediate paint, and water-based acrylic top paint. The large-scale promotion of water-based container coatings h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/61C09D7/43C09D7/45
CPCC08K2003/0893C08L2205/025C08L2205/03C09D5/106C09D163/00C09D7/43C09D7/45C09D7/61C09D7/70C08L63/00C08L1/26C08K13/04C08K7/26C08K3/346C08K3/34C08K3/08
Inventor 闫辉潘家震
Owner 绵阳麦思威尔科技有限公司
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