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Coating compositions and coatings and coatings and silicon oxide coatings and articles having coatings and methods of forming coatings on substrate surfaces

A technology of silicon oxide coating and composition, which is applied in the field of forming coatings on the surface of substrates, silicon oxide coatings, and products with coatings. It can solve the problem of stainless steel high-temperature oxidation yellowing, brittleness and explosive porcelain, and affecting stainless steel products. Appearance and other problems, to achieve the effect of good temperature resistance and scratch resistance, low energy surface characteristics, excellent adhesion performance

Active Publication Date: 2021-03-02
GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above three types of materials all have performance problems such as low hardness, poor scratch resistance, and poor adhesion to the substrate. Especially Teflon has been criticized in recent years, and its food safety problem has plagued many users. Home appliance manufacturers
[0005] In terms of high wear-resistant and high-hardness materials, the most widely used material in the home appliance industry is enamel materials, but its brittleness, high explosiveness, complex process, and low yield rate are insurmountable technical barriers for enamel materials. Developed countries have conducted many researches and regulations on the food contact safety of enamel materials, which makes the application prospects of enamel materials in the field of home appliances worrying.
[0006] Due to its high-grade appearance, stainless steel has always been the most widely used material for high-end products in the home appliance industry. However, it is easy to adhere to oil stains, which makes it difficult to clean or use cleaning materials to scratch the surface. It has always been used by home appliance consumers. The product is the biggest pain point, and in high-temperature environments (oven, microwave oven, stove, etc.), stainless steel is prone to high-temperature oxidation and yellowing, which seriously affects the appearance of stainless steel products

Method used

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  • Coating compositions and coatings and coatings and silicon oxide coatings and articles having coatings and methods of forming coatings on substrate surfaces
  • Coating compositions and coatings and coatings and silicon oxide coatings and articles having coatings and methods of forming coatings on substrate surfaces
  • Coating compositions and coatings and coatings and silicon oxide coatings and articles having coatings and methods of forming coatings on substrate surfaces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] (1) 40 parts by weight of perhydropolysilazane (average molecular weight is 600, SiH 1 and SiH 2 The molar ratio is 14) into 37.2 parts by weight of dibutyl ether, and stirred at room temperature (25° C.) to form a uniform and stable PHPS dilution.

[0105] (2) Add 1.3 parts by weight of (3-trimethoxysilylpropyl) diethylethylenediamine and 2 parts by weight of dibutyltin dilaurate to 10 parts by weight of dibutyl ether, at room temperature (25°C) , stirred to form a homogeneous coupling agent catalyst solution.

[0106] (3) Add 2 parts by weight of 1H,1H,2H,2H-perfluoroheptadecanedimethylsilane (purchased from Bailingwei Reagent Co., Ltd.) and 2 parts by weight of fumed silica (average particle size is 12nm) to PHPS diluted Then add the coupling agent catalyst solution prepared in step (2), and stir evenly at room temperature (25° C.), to obtain the coating according to the present invention.

[0107] (4) Apply the paint prepared in step (3) to the surface of the sta...

Embodiment 2

[0111] The substrate with coating is prepared by the same method as in Example 1, except that in step (3), instead of using 1H, 1H, 2H, 2H-perfluoroheptadecanedimethylsilane, 2 wt. perfluoroeicosane. The performance of the coating was tested and the results are listed in Table 2.

Embodiment 3

[0113] The same method as in Example 1 was used to prepare a coated substrate, except that in step (3), 1H, 1H, 2H, 2H-perfluoroheptadecanedimethylsilane and perfluoroeicosane were used, Wherein, the amount of 1H,1H,2H,2H-perfluoroheptadecanedimethylsilane is 1 part by weight, and the amount of perfluoroeicosane is 1 part by weight. The performance of the coating was tested and the results are listed in Table 2.

[0114] Table 2

[0115]

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Abstract

The invention discloses a coating composition, a coating, a coating, a coated product and a method for forming a coating on a substrate surface. The coating composition contains perhydropolysilazane, a fluorine-containing compound, inorganic particles, optional catalyst, and optional silane coupling agent. The coating formed on the surface of the substrate by the coating formed by the coating composition of the present invention not only has excellent adhesion performance, but also has good temperature resistance and scratch resistance, and also exhibits low-energy surface characteristics and is easy to clean.

Description

technical field [0001] The invention relates to the technical field of coatings. Specifically, the present invention relates to a coating composition and the coating formed by the coating composition, the present invention also relates to the coating formed by the coating, the present invention relates to a silicon oxide coating, and the present invention further relates to a A coated article and a method of forming a coating on a substrate surface. Background technique [0002] With the development of economy and society, people's living standards are improving day by day, and people's requirements for the performance of household appliances are getting higher and higher and more detailed, and the demand for basic physical properties and special functions of materials is increasing day by day. Coating, as the main carrier of material functionality, has received more and more attention and attention. [0003] Household appliances are exposed to high and low temperature, oi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/16C09D7/61C09D7/63B05D7/26
CPCB05D7/26C08K2201/011C09D5/18C09D183/16C09D7/61C09D7/63C09D7/67C08K3/36C08K5/5406C08K5/02
Inventor 赵莉张宗波徐彩虹
Owner GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD