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Two-component water paint for railroad car coating

A railway vehicle, two-component technology, used in epoxy resin coatings, coatings, latex paints, etc., can solve the problems of air, water pollution, human health, harmful waste gas, waste water discharge, etc., to save energy, Excellent water resistance and solvent resistance

Inactive Publication Date: 2009-02-04
CHANGCHUN HUARI PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Solvent-based coatings used in the coating of railway vehicle bodies have a large amount of toxic and harmful waste gas and waste water discharge, both in the manufacturing process and in the construction application process, causing pollution to the atmosphere and water resources, and directly affecting human health to varying degrees
At this time, humans began to develop water-based coatings with low VOC content, but one-component water-based coatings cannot meet people's performance requirements for water-based coatings, and two-component water-based coatings have become the focus of human development of water-based coatings.

Method used

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  • Two-component water paint for railroad car coating
  • Two-component water paint for railroad car coating
  • Two-component water paint for railroad car coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] (1) Two-component water-based epoxy primer consists of the following parts: 15 kg of deionized water, 12 kg of water-based epoxy resin, 9 kg of titanium dioxide, 0.05 kg of carbon black, 0.95 kg of iron oxide yellow , 0.04 kg of silicone defoamer, 14 kg of talc, 11 kg of complex zinc phosphate, 2.2 kg of zinc oxide, 2.8 kg of precipitated barium sulfate, 0.46 kg of water-based epoxy accelerator.

[0069] Produced by the aforementioned production process.

[0070] Application example: Take 67.5 kg of the above-mentioned coating and mix it with 28 kg of water-based epoxy resin curing agent, stir evenly, make boards and perform coating film performance testing according to the relevant national standards of the People's Republic of China.

[0071] The result is as follows:

[0072] project name

technical indicators

Paint film color and appearance

Grey, flat and smooth paint film

Non-volatile content %

70

Outflow time s

40 ...

Embodiment 2

[0081] (1) Two-component water-based epoxy primer consists of the following parts: 17.85 kg of deionized water, 12.5 kg of water-based epoxy resin, 10.3 kg of titanium dioxide, 0.06 kg of carbon black, 1.0 kg of iron oxide yellow , 0.045 kg of silicone defoamer, 14.3 kg of talc, 11.2 kg of complex zinc phosphate, 2.455 kg of zinc oxide, 3.6 kg of precipitated barium sulfate, 0.58 kg of water-based epoxy accelerator.

[0082] Produced by the aforementioned production process.

Embodiment 3

[0093] (1) Two-component water-based epoxy primer consists of the following parts: 20 kg of deionized water, 15 kg of water-based epoxy resin, 10.5 kg of titanium dioxide, 0.08 kg of carbon black, 1.42 kg of iron oxide yellow , 0.05 kg of silicone defoamer, 18 kg of talc, 15 kg of complex zinc phosphate, 3 kg of zinc oxide, 4 kg of precipitated barium sulfate, 0.95 kg of water-based epoxy accelerator.

[0094] Produced by the aforementioned production process.

[0095] Application example: take 88 kilograms of the above-mentioned coatings and mix 35 kilograms of water-based epoxy resin curing agent, stir evenly, make boards according to the relevant national standards of the People's Republic of China and conduct coating film performance testing, the results are as follows:

[0096] project name

technical indicators

Paint film color and appearance

Grey, smooth paint film, no abnormal defects

Non-volatile content %

69

Outflow time s ...

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PUM

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Abstract

The present invention relates to the improvement of a decorative coating, in particular to a double-component water-based coating coated on the body of a railway vehicle. The double-component water-based coating is composed of double-component water-based epoxy primer, middle double-component water-based acrylic polyurethane coating and top double-component water-based acrylic polyurethane coating. The double-component water-based coating, which is characterized by non-inflammability, non-toxicity, no environment pollution, energy saving, etc., is most suitably coated on the outer surfaces of various vehicles such as trains, automobiles and planes. The formed coating film has high mechanical property, and each property is close to or reaches the level of the solvent-based double-component coating. Being solidified under the normal temperature, the double-component water-based coating has excellent water-resisting property, solvent-resisting property and chemical agent-resisting property. The double-component water-based coating is characterized by strong decorative effect and simple and convenient construction.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to an improvement of a decorative paint. Background technique [0002] Solvent-based coatings for railway vehicle body coating contain a large amount of volatile organic compounds (VOC), which will pollute the atmosphere. Due to increasingly stringent environmental protection regulations, the use of toxic and harmful substances in coatings is increasingly restricted. VOC is the main hazard to the environment in coatings. Countries around the world are vigorously developing low-VOC environmentally friendly coatings. Among them, the development speed of water-based coatings is fastest. [0003] Solvent-based coatings for railway vehicle body coating have a large amount of toxic and harmful waste gas and waste water discharge in both the manufacturing process and the construction application process, causing pollution to the atmosphere and water resources, and directly affectin...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D133/00C09D5/02
Inventor 苏世元赵书君杨光辉
Owner CHANGCHUN HUARI PAINT
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