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Water-based high-build paint for railway wagons and preparation method thereof

A railway freight car, water-based technology, applied in coatings, anti-corrosion coatings, etc., can solve problems such as atmospheric pollution and achieve the effect of improving anti-corrosion performance

Active Publication Date: 2021-10-26
石家庄市油漆厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the coatings used in the coating of railway wagons are still solvent-based coatings with high content of volatile organic compounds (VOCs). During the production and use of coatings, these VOCs are emitted into the air and participate in the photochemical reaction of the atmosphere. caused serious pollution

Method used

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  • Water-based high-build paint for railway wagons and preparation method thereof
  • Water-based high-build paint for railway wagons and preparation method thereof
  • Water-based high-build paint for railway wagons and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1-3

[0028] The raw material composition of acrylic modified epoxy resin: 25 parts of vinyl ester resin; 20 parts of ethylene glycol butyl ether; 10 parts of butyl acrylate; 5 parts of methyl methacrylate; 2 parts of vinyl trimethoxysilane; 6 parts of triethylamine; 0.1 part of BPO; 27.9 parts of deionized water.

[0029] The preparation method of above-mentioned acrylic acid modified epoxy resin:

[0030] (a) Mix butyl acrylate, methyl methacrylate, vinyltrimethoxysilane, acrylic acid, and BPO evenly to obtain an acrylic acid monomer mixture, which is set aside;

[0031] (b) Add vinyl ester resin into the reactor, add ethylene glycol butyl ether, raise the temperature to 100-120°C, add the acrylic acid monomer mixture dropwise in 2 hours, and keep it warm for 2 hours;

[0032] (c) Cool down to room temperature, add triethylamine for neutralization, and obtain an acrylic modified epoxy resin.

[0033] The prepared acrylic modified epoxy resin is applied to the water-based high-bu...

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Abstract

The invention discloses a water-based high-build paint for railway wagons and a preparation method thereof. It consists of the following raw materials in parts by weight: 30-40 parts of water-based modified resin, 0.1-0.3 parts of neutralizer, 0.8-1 part of dispersant, 0.5-0.8 part of defoamer, 1.5-2.5 parts of pigment, anti-rust pigment 15‑25 parts, wet sericite powder 5‑8 parts, talcum powder 10‑13 parts, anti-settling agent 1.0‑2.0 parts, wetting agent 0.3‑0.5 parts, organic rust inhibitor 1‑1.5 parts, anti-flash rust 0.3-0.8 parts of rheology agent, 0.6-1.0 parts of rheological agent, 20-30 parts of deionized water. The product prepared by the present invention has fast drying speed, good initial water resistance, excellent mechanical properties and salt spray resistance, and the dry film thickness of one-time coating on the surface of railway wagon bodies or accessories can reach 100-120 μm, which can meet the needs of the wagon coating production line. Rhythm production efficiency requirements.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based high-build paint for railway wagons, and at the same time, the invention also relates to a preparation method of the coating. Background technique [0002] From 2018 to 2020, the Railway Corporation plans to purchase 216,000 railway wagons, and the railway wagons ushered in an unprecedented opportunity. The number of railway wagons in my country has reached 890,000 in 2018, and about 30,000 tons of coatings are needed in the new construction and maintenance of wagons every year. At present, most of the coatings used in the coating of railway wagons are still solvent-based coatings with high content of volatile organic compounds (VOCs). During the production and use of coatings, these VOCs are emitted into the air and participate in the photochemical reaction of the atmosphere. belt has caused serious pollution. With the increasingly stringent national environment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/08C09D5/08C09D7/45C09D7/47C08F283/10C08F220/18C08F220/14C08F220/06C08F230/08
CPCC08F283/105C08K2003/327C08K2003/328C08L2201/08C08L2205/035C09D5/084C09D151/08C09D7/45C09D7/47C08L83/12C08L75/04C08K13/06C08K9/04C08K3/32C08K3/346C08F220/14C08F220/06
Inventor 刘伟振殷晓宇韩康王艳姚海龙王维强赵庆军靳书学
Owner 石家庄市油漆厂
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