Modification material for cathode electrophoretic paint color paste, color paste and preparation method

A modified material and cathodic electrophoresis technology, which is applied in the direction of electrophoretic coating, epoxy resin coating, coating, etc., can solve the problems of epoxy resin not being resistant to weathering, pulverization, and affecting the protection effect of the coated product during the service life of the coating film. , to achieve the effect of ensuring anti-aging performance and improving toughness

Inactive Publication Date: 2017-08-18
湖北同邦达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the epoxy resin of the epoxy system is not weather-resistant, if the electrophoretic workpiece is not sprayed with weather-resistant paint in time, it will appear chalking, which will affect the service life of the coating film and the protection effect of the coated product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A color paste for cathodic electrophoretic paint, comprising base color paste, modified material and water.

[0056] The basic color paste includes the following components by weight: 27 parts of epoxy grinding resin, 18 parts of titanium dioxide, 1.5 parts of carbon black, 12 parts of kaolin, 0.25 parts of dispersing aid, 0.25 parts of substrate wetting agent and 8 parts of deionized water share.

[0057] The modified material includes the following components by weight: 27 parts of epoxy grinding resin, 9 parts of wet mica powder, 8 parts of co-solvent and 18 parts of deionized water.

[0058] And adopt the following method to prepare color paste for electrophoretic paint:

[0059] Step S1, stirring the basic raw materials forming the basic color paste evenly, and grinding for 30 minutes to obtain the basic color paste;

[0060] Step S2, stirring evenly the basic raw materials constituting the modified material to obtain the modified material;

[0061] Step S3, sti...

Embodiment 2

[0064] A cathodic electrophoretic paint color paste, which differs from Example 1 in that the modified material includes 6 parts by weight of wet-process mica powder. The anti-aging time of the electrophoretic paint film prepared with the electrophoretic paint containing the above color paste can reach 200h.

Embodiment 3

[0066] A cathodic electrophoretic paint color paste, which differs from Example 1 in that the modified material includes 22 parts by weight of epoxy-type grinding resin. The anti-aging time of the electrophoretic paint film prepared with the electrophoretic paint containing the above color paste can reach 180h.

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PUM

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Abstract

The invention provides a modification material for cathode electrophoretic paint color paste, color paste and a preparation method. The modification material comprises epoxy grinding resin, wet-method mica powder, a cosolvent and water. The cathode electrophoretic paint color paste comprises base color paste, the modification material and water. The base color paste comprises epoxy type grinding resin, titanium dioxide, carbon black, kaolin, a dispersing auxiliary, a base materai moistening agent and deionized water; the modification material comprises epoxy type grinding resin, wet-method mica powder, the cosolvent and water; the base color paste and the modification material are blended according to a ratio, and the preparation method is simple. Compared with the prior art that the electrophoretic paint is poor in weather resistance and has the phenomenon of powdering, the modification material for the cathode electrophoretic paint color paste, the color paste and the preparation method, which are provided by the invention, are capable of effectively improving the anti-aging property of an electrophoretic paint membrane.

Description

technical field [0001] The invention relates to electrophoretic materials, more specifically, to a modified material, color paste and preparation method for cathodic electrophoretic paint color paste. Background technique [0002] Electrophoresis is one of the most common and effective methods of coating metal workpieces. Electrophoretic coating is to immerse the conductive object to be coated in the material tank containing the electrophoretic coating as the cathode / anode, and set the corresponding anode / cathode in the material tank, and pass the current between the two poles for a period of time. A uniform and fine coating film is deposited on the surface of the object. Among them, electrophoretic coating, also known as electrophoretic paint, is an important factor affecting the quality of the final coating film in the electrophoretic coating process. [0003] Electrophoretic coating is widely used in the fields of automobile and various machinery industries. However, du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/44C09D7/12
CPCC09D5/44C09D5/4457
Inventor 周雪科徐明兵
Owner 湖北同邦达科技有限公司
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