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Railway transit aqueous epoxy double-component coating and preparation method thereof

A rail transit, water-based epoxy technology, used in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve the problems of slow drying speed of coatings, unsatisfactory corrosion resistance of coatings, and easy sagging.

Active Publication Date: 2015-08-05
常州勤邦新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the deepening of environmental and air pollution control in the world, the voice of using water-based environmental protection coatings is getting higher and higher, but the high-corrosion-resistant water-based epoxy two-component coatings used in rail transit still have the following disadvantages: (1) the coating is resistant to Corrosion performance is not ideal
(2) The drying speed of the paint is slow
(3) Easy to hang during the construction of large equipment

Method used

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  • Railway transit aqueous epoxy double-component coating and preparation method thereof
  • Railway transit aqueous epoxy double-component coating and preparation method thereof

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Embodiment 1

[0020] (1) 124 parts of film-forming aid alcohol ester, 0.8 part of water-based epoxy dispersant (BECKOPOX^TM EP2384w / 57WA (Cyote Chemical)), chelating type water-based coupling agent (TM -200S (Yizheng Tianyang Chemical Factory)) 0.7 parts, iron oxide red (Shanghai Feiyan Pigment Co., Ltd.) 16 parts, talcum powder (2500 mesh) 15 parts, polymer modified zinc phosphate (ZPG-S (Zhuzhou Jinqiao) Zinc Industry Co., Ltd.)) 5 parts, modified aluminum tripolyphosphate (Shijiazhuang Xinsheng Chemical Co., Ltd.) 3 parts, high molecular weight epoxy resin (PROX EB 4700 (Xianchuang Chemicals)) 24 parts, stirring at high speed for one hour to obtain a premixed slurry;

[0021] (2) Add 2 parts of epoxy group-containing emulsifier (PROX ES 100RS (Xianchuang Chemicals)) to the premixed slurry obtained in step (1), stir at high speed for 20 minutes, and then add aqueous wetting agent (BYK-190 (BYK, Germany)) 0.4 parts, water-based defoamer (BYK-052 (BYK, Germany)) 0.2 parts, anti-settling ag...

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Abstract

The invention belongs to the field of coating preparation and especially relates to a railway transit aqueous epoxy double-component coating and a preparation method thereof. The coating includes a component A and a component B, wherein the component A comprises 3-6 parts of a coalescing agent 2,2,4-Trimethyl-1,3-pentanediol monoisobutyrate, 0.5-1 part of an aqueous epoxy dispersing agent, 0.5-1 part of a chelating-type aqueous coupling agent, 15-20 parts of iron oxide red, 15-20 parts of talcum powder, 4-6 parts of high-molecular-modified zinc phosphate, 3-4 parts of modified aluminium triphosphate, 20-25 parts of high-molecular epoxy resin, 2 parts of an emulsifier containing epoxy groups, 0.1-0.5 parts of an aqueous wetting agent, 0.1-0.5 parts of an aqueous defoaming agent, 1 part of an anti-settling agent, 1 part of an anti-flash-rust agent, 0.3 parts of an aqueous anti-sag agent and 20-30 parts of deionized water; and the component B comprises 80 parts of an aqueous polyamide epoxy curing agent and 20 parts of deionized water.

Description

technical field [0001] The invention belongs to the field of coating preparation, in particular to a two-component coating containing multiple inorganic fillers and a preparation method thereof. Background technique [0002] Since the 1970s, foreign countries have begun to develop water-based epoxy coatings. Some domestic scientific research institutions and colleges and universities have started research and development in this area since the 1990s, and have been commercialized one after another. Epoxy coatings are comparable. In addition to solvent-based epoxy coatings, waterborne epoxy coatings have extremely high adhesion to various substrates, excellent corrosion resistance and chemical resistance, small shrinkage, high hardness, good wear resistance, and good electrical insulation properties. In addition to many other advantages, it also has a very low content of volatile organic compounds, which basically does not cause air pollution; water is used as a dispersion me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/08
Inventor 朱明刘勤学段旻
Owner 常州勤邦新材料科技有限公司
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