Electrophoretic paint

A technology of electrophoretic coatings and additives, applied in electrophoretic coatings, epoxy resin coatings, coatings, etc., can solve problems such as failure to meet production requirements and the paint film is not smooth enough to improve the degree of crosslinking and the surface of the film. Effect

Inactive Publication Date: 2014-07-30
GUANGDE ZHONGYIN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electrophoretic coatings use water-soluble or water-dispersible ionic polymers as film-forming materials, and the workpiece to be coated can be an anode or a cathode; the thickness of existing electrophoretic paints is 20-25 microns, which is used for iron castings, etc., which cannot reach According to production requirements, electrophoretic paint with a paint film thickness greater than 40 microns is now required, but the current paint film is not smooth enough, so it is necessary to improve the crosslinking degree of the resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation of the product is as follows: 8 kg of auxiliary agent, 62 kg of epoxy resin, and 30 kg of curing agent. 1) Mix and stir the epoxy resin, auxiliary agent and curing agent until viscous to form a semi-finished product;

[0024] 2) Grind the semi-finished product in step 1 fully with a grinder;

[0025] 3) Mix the fully ground product in step 2 with water as needed to obtain the desired finished product.

[0026] The stirring temperature in step 1 is 40-50°C, the pressure is normal pressure, the viscosity of the semi-finished product in step 1 is 40-50Pa·s, kaolin can suspend the ground product and is not easy to settle, so it can keep the product in a uniform state. When the product is attached, it is relatively uniform, the viscosity of the preparation is 40-50Pa·s, and the thickness of the obtained film is greater than 40 microns.

Embodiment 2

[0028] The preparation of the product is as follows: 5 kg of auxiliary agent, 62 kg of epoxy resin, and 33 kg of curing agent. 1) Mix and stir the epoxy resin, auxiliary agent and curing agent until viscous to form a semi-finished product;

[0029] 2) Grind the semi-finished product in step 1 fully with a grinder;

[0030] 3) Mix the fully ground product in step 2 with water as needed to obtain the desired finished product.

[0031] The stirring temperature in step 1 is 40-50°C, the pressure is normal pressure, the viscosity of the semi-finished product in step 1 is 40-50Pa·s, kaolin can suspend the ground product and is not easy to settle, so it can keep the product in a uniform state. When the product is attached, it is relatively uniform, the viscosity of the preparation is 40-50Pa·s, and the thickness of the obtained film is greater than 40 microns.

Embodiment 3

[0033] The preparation of the product is as follows: 6 kg of auxiliary agent, 65 kg of epoxy resin, and 29 kg of curing agent. 1) Mix and stir the epoxy resin, auxiliary agent and curing agent until viscous to form a semi-finished product;

[0034] 2) Grind the semi-finished product in step 1 fully with a grinder;

[0035] 3) Mix the fully ground product in step 2 with water as needed to obtain the desired finished product.

[0036] The stirring temperature in step 1 is 40-50°C, the pressure is normal pressure, the viscosity of the semi-finished product in step 1 is 40-50Pa·s, kaolin can suspend the ground product and is not easy to settle, so it can keep the product in a uniform state. When the product is attached, it is relatively uniform, the viscosity of the preparation is 40-50Pa·s, and the thickness of the obtained film is greater than 40 microns.

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Abstract

The invention provides an electrophoretic paint which comprises the following components in percentage by mass: 60-65% of epoxy resin, 5-10% of auxiliaries and 30-40% of a curing agent, wherein 5-10% of the assistant and 25-35% of the curing agent are added into the 60-65% of epoxy resin. Kaolin can enable the grinded product to suspend and be not easy to precipitate. The viscosity is 40-50Pa.s, the thickness of the prepared film is greater than 40 microns, and the crosslinking degree of resin is improved, so that the surface smoothness of the film is ensured while the thickness of the film is adjusted, and thus the demand of the product is met.

Description

technical field [0001] The invention relates to the field of electrophoretic paint production, in particular to an electrophoretic paint. Background technique [0002] Electrophoretic paint is divided into cathodic electrophoresis and anodic electrophoresis. As a new type of low-pollution, energy-saving, resource-saving, protective and anti-corrosion paint, electrophoretic paint has the characteristics of smooth coating film, good water resistance and chemical resistance. , It is easy to realize the mechanization and automation of the coating industry, and is suitable for the coating of workpieces with complex shapes, edges, corners, and holes. Electrophoretic coatings and coating methods have been applied in industry since the 1960s. Electrophoretic coatings can be used for fully closed circulation system operation, and almost 100% of the coatings are utilized. Electrophoretic coatings use water-soluble or water-dispersible ionic polymers as film-forming materials, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/44C09D7/12
Inventor 彭德琼
Owner GUANGDE ZHONGYIN CHEM
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