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Dedicated coating for high speed trains and preparation method thereof

A technology for high-speed trains and coatings, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of high-speed trains' surface impact and damage, and achieve high surface hardness, excellent elasticity, protection and prolonging the service life.

Inactive Publication Date: 2013-09-11
JIANGSU MARINE VICTORY COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The purpose of the invention is to solve the problem of impact and damage to the surface of high-speed trains by wind, sand and hail, and to provide a special coating for the surface of acrylic polyurethane high-speed trains with excellent stone impact resistance and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of component A: in parts by mass, first mix 12 parts of polyurethane thinner, 6 parts of NEUKAPOL1007 polyester of altropol company, 23 parts of German Bayer 1520 acrylic polyurethane and 11 parts of German Bayer 1420 acrylic polyurethane and disperse at a low speed. 80 rpm, after dispersing for 15 minutes, gradually add 38 parts of German DuPont rutile titanium dioxide R-930, and disperse at a dispersion speed of 600 rpm until the temperature of the mixture in the reactor is 35-40 ° C, start adding 1.7 1 part of Dow Corning DC3# anti-floating and flowering agent, dispersed for 30 minutes at a dispersion speed of 1000 rpm, then added 1.1 parts of German BYK161 dispersant, 4 parts of Dow Corning Z6040 coupling agent, 0.3 part of 10% Dow Corning defoamer, 0.7 parts of Dow Corning DC57 leveling agent and 1.3 parts of SD-2 anti-settling agent are dispersed at a dispersion speed of 80-280 rpm, and 3.5 parts of polyurethane thinner are used to adjust the...

Embodiment 2

[0027] The preparation method of component A: in parts by mass, first mix 10 parts of polyurethane thinner, 7 parts of NEUKAPOL1007 polyester of altropol company, 18 parts of German Bayer 1520 acrylic polyurethane and 17 parts of German Bayer 1420 acrylic polyurethane and disperse at a low speed. The speed is 150 rpm, after dispersing for 10 minutes, gradually add 41 parts of German DuPont rutile titanium dioxide R-930, and disperse at a dispersion speed of 800 rpm until the temperature of the mixture in the reactor is 35-40 °C, then start adding 1.3 parts of Dow Corning DC3# anti-floating and anti-foaming agent, disperse for 35 minutes at a dispersion speed of 900 rpm, then add 0.9 parts of German BYK161 dispersant, 3.1 parts of Dow Corning Z6040 coupling agent, 0.6 parts of 10% Dow Corning defoamer 1.7 parts of Dow Corning DC57 leveling agent and 2.5 parts of SD-2 anti-sedimentation agent, dispersed at a dispersion speed of 80-280 rpm, and 4 parts of polyurethane thinner to a...

Embodiment 3

[0032] The preparation method of component A: in parts by mass, first mix 15 parts of polyurethane thinner, 3 parts of NEUKAPOL1007 polyester of altropol company, 27 parts of German Bayer 1520 acrylic polyurethane and 15 parts of German Bayer 1420 acrylic polyurethane and disperse at a low speed. The speed is 120 rpm, after dispersing for 12 minutes, gradually add 41 parts of German DuPont rutile titanium dioxide R-930, and disperse at a dispersion speed of 500 rpm until the temperature of the mixture in the reactor is 35-40°C, then start adding 2.1 parts of Dow Corning DC3# anti-floating and anti-foaming agent, disperse for 40 minutes at a dispersion speed of 1000 rpm, then add 1.3 parts of German BYK161 dispersant, 4.2 parts of Dow Corning Z6040 coupling agent, 0.3 parts of 10% Dow Corning defoamer , 0.9 parts of Dow Corning DC57 leveling agent and 1.5 parts of SD-2 anti-settling agent, dispersed at a dispersion speed of 80-280 rpm, and 3.5 parts of polyurethane thinner to ad...

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Abstract

The invention discloses a dedicated coating for high speed trains and a preparation method thereof. Polyesters and acrylic polyurethane which have high hydroxyl value and low viscosity are used as main raw materials, rutile titanium dioxide is used as a pigment, then with cooperation of additives and solvents, an A component is prepared by mixing and dispersing the polyesters, acrylic polyurethane and rutile titanium dioxide; a B component is prepared by mixing curing agents and a diluent agent; the dedicated coating for the high speed trains is obtained by mixing and curing the A component and the B component. The coating has extremely high surface hardness, has excellent elasticity, bending resistance, flexibility and weather resistance, has good tensile strength, tear strength and stone chip resistance, and thereby protecting the high speed trains and prolonging service life of the high speed trains.

Description

technical field [0001] The invention belongs to the technical field of metal surface coatings, and in particular relates to a surface coating for high-speed train car bodies. Background technique [0002] Transportation is an indispensable basic industry in a civilized society and the lifeblood of national economic and social development. With the construction of railway passenger dedicated lines and high-speed railways, high-speed EMUs with a speed of 200 kilometers per hour and above will become the leading product in the passenger transportation equipment market with its huge advantages in passenger transportation, such as high speed, safety, environmental protection and comfort, and the market space is huge. The development prospects are very broad, and as a key project to realize the modernization of railway transportation equipment and revitalize the manufacturing industry, it has been included in the national "Eleventh Five-Year Plan" and the national medium and long-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D175/06C09D7/12
Inventor 陈廷生郑化殷以华
Owner JIANGSU MARINE VICTORY COATING
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