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Mirror back coating adhesion promoter and preparation method thereof

A technology of adhesion promoter and coating, applied in the direction of anti-corrosion coatings, coatings, etc., can solve problems such as damage to mirror metal reflective layers, and achieve the effects of superior coating adhesion, improved peeling resistance, and improved adhesion

Pending Publication Date: 2022-06-21
TIANJIN CITY XINLIHUA COLOR MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because the moisture in the air and harmful substances mixed in the air first destroy the protective film on the back of the mirror or pass through the weak point in the back film of the mirror, causing damage to the metal reflective layer of the mirror.

Method used

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  • Mirror back coating adhesion promoter and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

Different from Example 1, the phosphoric acid solution was not included in the raw material.

[0040] performance test

Detection method / test method

Add equal amounts of the adhesion promoters in Examples 1-12 and Comparative Examples 1-3 to the same amount of coating respectively, then use the method of curtain coating to pour on the mirror back, and carry out the coating on the mirror back. The following detections:

Adhesion test: Adhesion test is carried out in accordance with the provisions of "Paints and Varnishes-Cross-cut Test of Paint Film" GB / T 9286-2021; Corrosion performance and CASS test: According to "Test method for environmental corrosion resistance of silver-coated glass mirrors" 》GB / T 32026-2015 provides for corrosion performance and CASS experiments;

The performance testing results are shown in Table 2.

[0041] Table 2 performance test results

[0042] In conjunction with Examples 1-6 and Comparative Examples 1-3, and in conjunction with Table 2, ...

preparation example 1

preparation example 2

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Abstract

The invention relates to the technical field of coating promoters, and particularly discloses a mirror back coating adhesion promoter and a preparation method thereof. The invention relates to a mirror back coating adhesion promoter, which is prepared from the following raw materials in parts by weight: 35 to 55 parts of polyether amine, 70 to 110 parts of epoxy resin, 30 to 55 parts of 2-hydroxyethyl methacrylate phosphate, 30 to 90 parts of polyhydric alcohol phosphate, 2 to 30 parts of hydroxyl-containing acrylic acid compounds, 10 to 40 parts of phosphoric acid solution, 90 to 150 parts of ether solvents, 80 to 160 parts of benzene solvents and 0.2 to 1.0 part of catalysts. Wherein the epoxy equivalent of the epoxy resin is 380-3300; the mass percentage concentration of the phosphoric acid solution is 80-90%; the preparation method comprises the following steps: uniformly mixing the raw materials, heating for reaction, and cooling to room temperature to obtain the adhesion promoter. The adhesion promoter disclosed by the invention is added into a coating and is sprayed on a mirror back by using a spraying process to form a coating, and the adhesion and corrosion resistance of the coating are excellent.

Description

technical field [0001] The application relates to the technical field of mirror back paint accelerators, more specifically, it relates to a mirror back paint adhesion promoter and a preparation method thereof. Background technique [0002] The mirrors used in daily life are generally composed of three parts: flat glass, metal reflective layer (silver layer or aluminum layer) and mirror back paint. Mirror back paint is generally sprayed on the metal reflective layer by flow coating to form a protective film. [0003] When the mirror is used for a period of time, or even a few months, some light green or black spots will appear on the surface, and in severe cases, the entire mirror surface will be blurred. This is because the moisture in the air and harmful substances mixed in the air first destroy the mirror back protective film or pass through the weak point in the mirror back film, causing damage to the mirror metal reflective layer. [0004] In view of the above-mentione...

Claims

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Application Information

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IPC IPC(8): C09D7/65C09D7/63C09D5/08C08G18/10C08G18/58C08G18/61C08G59/14
CPCC09D7/65C09D7/63C09D5/08C08G18/10C08G18/61C08G18/587C08G59/1422C08G2150/90
Inventor 张崇明赵洪庆
Owner TIANJIN CITY XINLIHUA COLOR MATERIAL
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