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Preparation method of metal colored transparent high-temperature-yellowing-resistant coating

A technology of high temperature resistant and transparent coatings, applied in coatings, fire retardant coatings, etc., to achieve broad market application prospects, improve high temperature resistance and temperature denaturation effects

Inactive Publication Date: 2020-08-21
NANTONG UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the current traditional anti-fingerprint metal plate, the present invention provides a new method for preparing a high-temperature-resistant colored protective coating on the metal surface, by modifying silicone-modified acrylate and introducing nano-inorganic grids into the coating to enhance the coating Temperature resistance and protection performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Ball mill butyl acrylate and iron oxide particles at a weight ratio of 10:10 for 3 hours to obtain nano inorganic color paste.

[0029] (2) Mix butyl acrylate with NanoSiO 2 Ball milling according to the weight ratio of 2:100 to obtain NanoSiO 2 suspension.

[0030] (3) Weigh methyl methacrylate, butyl methacrylate and acrylic acid in parts by weight 50:10:10, mix all the monomers in the acrylate resin and add 3% of the total monomer weight of azobisisobutyl Dimethyl acrylate was stirred with a glass rod for 10 minutes to obtain the in-situ polymerization precursor ①; then butyl acrylate and methylchlorosilane were mixed according to a weight ratio of 1:2, and stirred with a glass rod for 10 minutes to obtain the in-situ polymerization precursor Liquid ②.

[0031] (4) Under nitrogen protection, add the NanoSiO that the weight portion is 40 parts in the four-neck flask that electric stirrer, circulating condensed water, thermometer and two constant pressure funnel...

Embodiment 2

[0036] (1) Ethyl acetate and chromate particles were ball-milled at a weight ratio of 10:20, and the ball-milling time was 4 hours to obtain nano-scale inorganic color paste.

[0037] (2) Ethyl acetate and NanoSiO 2 Ball milling according to the weight ratio of 2:100 to obtain NanoSiO 2 suspension.

[0038](3) Weigh methyl methacrylate, butyl methacrylate and hydroxyethyl acrylate in parts by weight 50:10:10, mix all the monomers in the acrylate resin and add 3% of the total monomer weight of azo Diisoheptanonitrile, stirred with a glass rod for 10 minutes to obtain the in-situ polymerization precursor ①; then mixed ethyl acetate and phenylchlorosilane in a weight ratio of 1:2, and stirred with a glass rod for 10 minutes to obtain the in-situ polymerization precursor Liquid ②.

[0039] (4) Under nitrogen protection, add the NanoSiO that the weight part is 50 parts in the four-necked flask that electric stirrer, circulating condensed water, thermometer and two constant press...

Embodiment 3

[0044] (1) Ball mill n-butanol and sulfate particles according to the weight ratio of 10:30, and the ball milling time is 9 hours to obtain nano inorganic color paste.

[0045] (2) Mix n-butanol with NanoSiO 2 Ball milling according to the weight ratio of 3:100 to obtain NanoSiO 2 suspension.

[0046] (3) Weigh methyl methacrylate, butyl methacrylate and methacrylic acid in parts by weight 50:10:10, mix all the monomers in the acrylate resin and add 3% benzene peroxide of the total weight of the monomers Formyl tert-butyl ester, stirred with a glass rod for 10 minutes to obtain the in-situ polymerization precursor ①; then mixed n-butanol and methylvinylchlorosilane in a weight ratio of 1:2, and stirred with a glass rod for 10 minutes to obtain the in-situ polymerization Polymerization precursor liquid ②.

[0047] (4) Under nitrogen protection, add the NanoSiO that the weight portion is 60 parts in the four-necked flask that electric stirrer, circulating condensed water, the...

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Abstract

The invention discloses a preparation method of a metal colored transparent high-temperature-yellowing-resistant coating, belonging to the technical field of protective coatings. The invention aims toovercome the problems of poor temperature change resistance, low adhesive force, difficulty in realizing colored transparent coating and the like of traditional anti-fingerprint metal plate at present. According to the preparation method, high-temperature-resistant organosilicone modified acrylate resin is prepared by blocking flexible organosilicone small molecules onto an acrylate main chain through in-situ polymerization, so the temperature change resistance of basic resin is improved; and then an epoxy resin curing agent, nanometer inorganic color paste and an auxiliary agent are subjected to mixing and ball-milling to prepare a coating, and the surface of a metal substrate is uniformly coated with the coating through a rotary spraying device to obtain the colored transparent high-temperature-yellowing-resistant coating. The color of the obtained coating does not cover the original color and texture of metal, metal texture can be integrally kept, and the coating is suitable for protection and decoration of surfaces of various household appliance panels, building boards, environment-friendly equipment and the like and has wide market application prospects.

Description

technical field [0001] The invention belongs to the technical field of protective coatings, in particular to a method for preparing a colored transparent high-temperature-resistant yellowing coating on a metal surface. Background technique [0002] Metal decorative panels are widely used surface decoration materials in construction, elevators, automobiles, household appliances, kitchen supplies and other industries. With the improvement of people's living standards, the functional requirements for metal decorative panels are also increasing, and ordinary metal decorative panels are currently difficult to meet the diversified needs of the market. [0003] The traditional metal anti-fingerprint decorative board has a single color tone, the decorative feeling is not strong, and the metallic luster is easy to cause visual fatigue; and the general metal decorative board can only be used in conventional environments, and the anti-fingerprint coating on the surface is extremely dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D7/61C09D7/80C08F220/14C08F220/18C08F220/06C08F2/44C08F8/42C08F220/28C08F230/08
CPCC08F2/44C08F8/42C08F220/14C08K2003/2272C08K2003/3045C08K2201/011C08L2201/08C08L2201/10C09D5/18C09D133/064C09D133/066C09D143/04C09D7/61C09D7/80C08L63/00C08K3/22C08K3/36C08K3/24C08K3/30C08F220/1804C08F220/06C08F220/281C08F230/085
Inventor 陆洪彬唐伟唐少春汤华军桑志宏张子峰陈婷婷朱西挺张玉明
Owner NANTONG UNIVERSITY
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