Application method of protective coating in glass hot bending process

A technology of protective coating and application method, applied in applications, household utensils, inks, etc., can solve problems such as shortened service life of molds, low yield rate, mold indentation, etc., to achieve extended service life, high hardness, and excellent adhesion Effect

Inactive Publication Date: 2022-02-01
深圳市金达盛化工有限公司
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a protective coating application method in the glass hot bending process to solve the problem that the yield rate of 3D glass after hot bending is low and the mold will be pressed during hot bending. Marks, the problem of shortening the service life of the mold

Method used

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  • Application method of protective coating in glass hot bending process

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Embodiment approach 1

[0018] 1. The protective coating in the hot bending process of glass is made of unsaturated polyester resin, polyurethane resin, isophorone, dibasic ester, special epoxy resin, curing agent, auxiliary agent and filler;

[0019] 2. The mass percentage of each component is as follows: unsaturated polyester resin 20-30%, polyurethane resin 25-35%, isophorone 15-18%, divalent ester 18-20%, special epoxy resin 20%, curing agent 6-8%, auxiliary agent 1-2%, filler 5-10%;

[0020] 3. Pour the unsaturated polyester resin and polyurethane resin into the container, heat it, stir it continuously during the heating process, so that it can be fully mixed, and stop heating after heating to 80 °C;

[0021] 4. Add isophorone and dibasic acid ester to the heated and stirred mixture, use a mixer to stir slowly for 5 minutes to make a mixed solvent, and keep heating during the stirring process to keep the temperature at 80°C;

[0022] 5. Gradually add the special epoxy resin to the mixed solvent...

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Abstract

The invention discloses an application method of a protective coating in a glass hot bending process, and relates to the technical field of 3D glass hot bending processing, and the protective coating in the glass hot bending process is formed by mixing unsaturated polyester resin, polyurethane resin, isophorone, dibasic acid ester, special epoxy resin, a curing agent, an auxiliary agent and a filler. The protective coating comprises the following components in percentage by mass: 20-30% of the unsaturated polyester resin, 25-35% of the polyurethane resin, 15-18% of the isophorone, 18-20% of the dibasic acid ester, 20% of the special epoxy resin, 6-8% of the curing agent, 1-2% of the auxiliary agent and 5-10% of the filler, and a hot bending forming machine used for processing the 3D glass is a Pacific precision machine. The product is environment-friendly, non-toxic, low in odor, uniform in coating fineness, good in leveling property and excellent in adhesive force to a substrate after being cured, the 3D hot bending glass forming protection ink can solve the problem that the peripheral size precision of 3D glass subjected to hot bending forming is out of tolerance, and the problems of indentation and cambered surface collapse generated by the mold are effectively reduced.

Description

technical field [0001] The invention relates to the technical field of 3D glass hot bending processing, in particular to an application method of a protective coating in the glass hot bending process. Background technique [0002] At present, when processing 3D glass, the 3D glass is directly formed by hot bending using a mold. The 3D glass has a large and small edge when the peripheral dimension accuracy of the hot bending forming is too poor, resulting in indentation of the mold and collapse of the arc surface, which results in The yield rate of 3D hot-bending glass is low, resulting in reduced shipments and shortening the service life of hot-bending molds. Therefore, a protective coating in the glass hot-bending process is needed to improve 3D glass hot-bending forming. The yield rate and the service life of the mold. Contents of the invention [0003] The purpose of the present invention is to provide a protective coating application method in the glass hot bending pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/104C09D11/102C09D11/03
CPCC09D11/104C09D11/102C09D11/03
Inventor 罗湘南邱木生
Owner 深圳市金达盛化工有限公司
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