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Primer with strong adhesion on aluminum and preparation method thereof

A technology of strong adhesion and primer, applied in the direction of coating, epoxy resin coating, etc., can solve the problems of poor adhesion of paint film, large manpower, material force, paint peeling, etc., achieve excellent chemical resistance, improve adhesion The effect of focusing and strengthening adhesion

Active Publication Date: 2016-02-17
ZHANGZHOU XIN ZHAN WANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole set of procedures is cumbersome and requires a lot of manpower and material resources. If the partial pre-treatment is not in place, it will also lead to problems such as poor adhesion of the paint film and paint peeling off.

Method used

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  • Primer with strong adhesion on aluminum and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method of the modified epoxy primer with strong adhesion on the aluminum material, the method comprises the following process steps:

[0029] (1) 28 kilograms of E-20 epoxy resin, 50 kilograms of titanium dioxide, 1 kilogram of polyacrylate polymer and 17 kilograms of methyl isobutyl ketone were first put into the dispersion tank according to the formula requirements, and stirred at high speed for 30 minutes;

[0030] (2) grinding the above-mentioned mixed material to a fineness of 20 microns with a grinder;

[0031] (3) add 2 kilograms of E-20 epoxy resin again, stir 10 minutes;

[0032] (4) measure solid content, and adjust coating to 65wt% with 2 kilograms of methyl isobutyl ketone;

[0033] (5) After the solid content detection is qualified, the modified epoxy primer with strong adhesion on the aluminum material is prepared, and weighed and packaged.

Embodiment 2

[0035] The preparation method of the modified epoxy primer with strong adhesion on the aluminum material, the method comprises the following process steps:

[0036] (1) 20 kilograms of E-20 epoxy resin, 50 kilograms of titanium dioxide, 5 kilograms of polyacrylate polymer, and 10 kilograms of methyl isobutyl ketone were first put into the dispersion tank according to the formula requirements, and stirred at high speed for 30 minutes;

[0037] (2) grinding the above-mentioned mixed material to a fineness of 18 microns with a grinder;

[0038] (3) add 10 kilograms of E-20 epoxy resin again, stir 20 minutes;

[0039] (4) measure solid content, and adjust coating to 60wt% with 5 kilograms of methyl isobutyl ketone;

[0040] (5) After the solid content detection is qualified, the modified epoxy primer with strong adhesion on the aluminum material is prepared, and weighed and packaged.

Embodiment 3

[0042] The preparation method of the modified epoxy primer with strong adhesion on the aluminum material, the method comprises the following process steps:

[0043] (1) 28 kilograms of E-20 epoxy resin, 45 kilograms of titanium dioxide, 0.5 kilograms of polyacrylate polymer, and 16 kilograms of methyl isobutyl ketone were first put into the dispersion tank according to the formula requirements, and stirred at high speed for 30 minutes;

[0044] (2) grinding the above-mentioned mixed material to a fineness of 13 microns with a grinder;

[0045] (3) add 7 kilograms of E-20 epoxy resin again, stir 15 minutes;

[0046] (4) measure solid content, and adjust coating to 70wt% with 3.5 kilograms of methyl isobutyl ketone;

[0047] (5) After the solid content detection is qualified, the modified epoxy primer with strong adhesion on the aluminum material is prepared, and weighed and packaged.

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Abstract

The invention relates to priming paint with strong adhesive force on an aluminum material and a preparation method of the priming paint. The priming paint is prepared from the following raw materials in parts by weight: 20 to 35 parts of modified epoxy resin, 30 to 50 parts of pigments and fillers, 0.5 to 5 parts of accessory ingredients, 10 to 20 parts of solvent. The preparation method comprises the following steps: placing 80 to 90 percent of resin, 60 to 70 percent of solvent and pigments and fillers as well as accessory ingredients into a reaction container according to the formula, stirring the raw materials at a high speed, grinding the materials into the particles with the granularity of less than or equal to 20 micrometers, adding surplus resin, and adjusting the solid content to a theoretical value by utilizing the surplus solvent, thereby preparing the priming paint with the strong adhesive force on the aluminum material. Compared with the prior art, the adhesion performance is improved, and the chemical drug resistance is excellent.

Description

technical field [0001] The invention relates to a primer coating and a preparation method thereof, in particular to a primer with strong adhesion on an aluminum material and a preparation method thereof. Background technique [0002] The primer is the first layer of the paint system, and refers to the paint that is applied directly to the surface of the object as a solid base for the topcoat. It is required to be firmly attached on the surface to increase the adhesion of the upper coating, and at the same time, it can ensure the uniform absorption of the topcoat, increase the fullness of the topcoat, provide alkali resistance, and provide anti-corrosion functions, so that the paint system can play the best effect. The traditional epoxy primer paint is attached to the aluminum material. To prevent the paint from falling off, the aluminum material must be pre-treated before painting. L sodium hydroxide)---washing---stain removal and neutralization (50% nitric acid)---washing-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/25
Inventor 谢平展
Owner ZHANGZHOU XIN ZHAN WANG CHEM IND
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