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Coating composition, preparation method of coating composition, coating part, preparation method of coating part, and household appliance

A composition and coating technology, applied in the coating and other directions, can solve the problems of poor temperature resistance, poor adhesion, and difficult to clean, and achieve the effects of good temperature resistance, good adhesion, and easy cleaning

Pending Publication Date: 2019-03-01
GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned coatings have disadvantages such as low hardness, poor adhesion, poor temperature resistance, difficult to clean, and potential food contact safety hazards.

Method used

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  • Coating composition, preparation method of coating composition, coating part, preparation method of coating part, and household appliance
  • Coating composition, preparation method of coating composition, coating part, preparation method of coating part, and household appliance

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The raw materials for the preparation of the coating composition include polysilazane, polysiloxane and siloxane containing low surface energy side chains, and the polysilazane and polysiloxane undergo a copolymerization reaction to form polysilazane- A polysiloxane copolymer, the siloxane containing low surface energy side chains is mixed with the polysilazane-polysiloxane copolymer.

[0038] The raw materials for the preparation of the coating composition of the technical solution of the present invention include polysilazane, polysiloxane and siloxane containing low surface energy side chains, and the polysilazane and polysiloxane will undergo a copolymerization reaction to form polysiloxane. Silazane-polysiloxane copolymer. The polysilazane-polysiloxane copolymer has the advantages of high hardness, good adhesion and good temperature resistance, so that the coating formed by the coating composition has the advantages of high hardness, good adhesion and good temperat...

Embodiment 1

[0175] The preparation method of described coating composition comprises the following steps:

[0176] Preparation raw materials are provided, and the preparation raw materials include:

[0177] Polysilazane, the R of the polysilazane 1 is a hydrogen group, R 2 is a hydrogen group, R 3 is a hydrogen group, and the polysilazane accounts for 40% of the mass percentage of the preparation raw materials,

[0178] polysiloxane, the R of the polysiloxane 4 is a hydrogen group, R 5 It is an olefin, and the polysiloxane accounts for 40% of the mass percentage of the preparation raw material;

[0179] Triethoxy[4-(trifluoromethyl)phenyl]silane, which accounts for 20% of the mass percentage of the raw materials for the preparation.

[0180] Polysilazane and polysiloxane are placed in the reactor, and polysilazane and polysiloxane are mixed at a speed of 350 rpm, and the copolymerization reaction between polysiloxane and polysiloxane generates polysilazane. Siloxane-polysilazane co...

Embodiment 2

[0183] The preparation method of described coating composition comprises the following steps:

[0184] Preparation raw materials are provided, and the preparation raw materials include:

[0185] Polysilazane, the R of the polysilazane 1 is aryl, R 2 is a hydrogen group, R 3 is an alkylamino group, and the polysilazane accounts for 35% of the mass percent of the preparation raw materials,

[0186] polysiloxane, the R of the polysiloxane 4 is cycloalkane, R 5 is an alkylsiloxy group, and the polysiloxane accounts for 20% of the mass percentage of the preparation raw material;

[0187] 1,3-bis(3,3,3-trifluoropropyl)-1,1,3,3-tetramethyldisiloxane, which accounts for 12% of the mass percentage of the preparation raw materials;

[0188] Dibutyl ether, which accounts for 20% of the mass percentage of the preparation raw materials;

[0189] Cyclohexanone, which accounts for 10% of the mass percent of the preparation raw materials;

[0190] Dibutyltin dilaurate, which accounts ...

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Abstract

The invention provides a coating composition, a preparation method of the coating composition, a coating part prepared from the coating composition, a preparation method of the coating part, and a household appliance applying the coating part. The coating composition is prepared from the raw materials: polysilazane, polysiloxane and siloxane containing low-surface-energy side chains; the polysilazane and the polysiloxane are subjected to copolymerization reaction to generate a polysilazane-polysiloxane copolymer; and the siloxane containing the low-surface-energy side chains and the polysilazane-polysiloxane copolymer are mixed. A coating prepared from the coating composition has the advantages of being high in hardness, good in adhesion, easy to clean, good in temperature resistance, capable of reaching the food contact safety level and the like.

Description

Technical field [0001] The present invention relates to the technical field of household appliances, and in particular to a coating composition, a preparation method of the coating composition, a coated part prepared from the coating composition, a preparation method of the coated part and application of the coated part of household appliances. Background technique [0002] In the field of micro-baking, it is usually necessary to form a coating on the surface of kitchen appliances. The coating materials are mainly: enamel (the enamel can be formed on the surface of the product through the enamel process), silicone, Teflon, and epoxy powder. (The epoxy powder can be sprayed on the surface of the product by powder spraying), or silica sol + silicone hybrid coating. However, the above-mentioned coating has shortcomings such as low hardness, poor adhesion, poor temperature resistance, difficulty in cleaning, and potential food contact safety hazards. Contents of the invention...

Claims

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Application Information

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IPC IPC(8): C09D183/10C09D7/63C09D7/61C08G77/452
CPCC08G77/452C08K2003/2227C08K2003/2241C09D183/10C09D7/61C09D7/63C09D7/69C08K5/5419C08K13/02C08K3/36C08K3/22C08K13/04C08K7/20
Inventor 赵莉
Owner GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD
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