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Self-cleaning powder coating for household appliances and furniture and preparation method of self-cleaning powder coating

A powder coating and self-cleaning technology, applied in powder coatings, polyether coatings, anti-corrosion coatings, etc., can solve problems such as poor coordination between nanomaterials and substrates, easy orange peeling of coatings, affecting aesthetics and antifouling effects, etc. Achieve the effect of good compatibility, not easy to produce orange peel, and high uniformity

Active Publication Date: 2021-10-22
杭州瑞辰塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing self-cleaning powder coatings generally use the existing resin materials as the base, adding nano-materials to make the coatings have hydrophobic and anti-fouling effects, but the added nano-materials do not match well with the base, and after a long time of use, they are sprayed The paint on the surface of the object is prone to orange peel, which affects the appearance and antifouling effect

Method used

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  • Self-cleaning powder coating for household appliances and furniture and preparation method of self-cleaning powder coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare modified resin, comprises the steps:

[0033] Step S1: The solution is prepared by adding 70 mL of acetonitrile and 40 mL of dimethyl ether to 200 mL of sodium hypochlorite solution with a mass fraction of 18%, stirring and mixing to obtain an aprotic solution; Hexafluoropropylene oxide was slowly added to 300mL of the solution, and after the addition, the temperature was lowered to -60°C, and 2.5% alkali metal fluorotitanate was added as a catalyst. After 72 hours of magnetic stirring, the temperature was raised to normal temperature, and the reaction liquid was distilled and separated. The intermediate product 1 is obtained; the alkali metal fluorotitanate is sodium fluorotitanate;

[0034]Step S2: Mix 20mL of intermediate product 1 with 350mL of methanol solution with a mass fraction of 70%, and react to generate intermediate product 2 under the action of T-63MP solid acid catalyst resin; dissolve 18mL of intermediate product 2 in 100mL of THF, and add 1.5g ...

Embodiment 2

[0037] Prepare modified resin, comprises the steps:

[0038] Step S1: The solution is prepared by adding 70 mL of acetonitrile and 40 mL of dimethyl ether to 200 mL of sodium hypochlorite solution with a mass fraction of 18%, stirring and mixing to obtain an aprotic solution; Slowly add hexafluoropropylene oxide into 300mL of dissolving solution, after the addition, lower the temperature to -55°C, add 3.5g of alkali metal fluorotitanate as a catalyst, stir the reaction with magnetic force for 80 hours, then raise it to normal temperature, and distill and separate the reaction solution , to obtain the intermediate product 1; the alkali metal fluorotitanate is sodium fluorotitanate;

[0039] Step S2: Mix 20mL of intermediate product 1 with 350mL of methanol solution with a mass fraction of 70%, and react to generate intermediate product 2 under the action of T-63MP solid acid catalyst resin; dissolve 18mL of intermediate product 2 in 100mL of THF, and add 2.5g Sodium borohydrid...

Embodiment 3

[0042] Prepare modified resin, comprises the steps:

[0043] Step S1: The solution is prepared by adding 70 mL of acetonitrile and 40 mL of dimethyl ether to 200 mL of sodium hypochlorite solution with a mass fraction of 18%, stirring and mixing to obtain an aprotic solution; Slowly add hexafluoropropylene oxide into 300mL of dissolving solution, after adding, lower the temperature to -50°C, add 4.5g of alkali metal fluorotitanate as catalyst, react with magnetic stirring for 90h, then raise to normal temperature, and distill and separate the reaction solution , to obtain the intermediate product 1; the alkali metal fluorotitanate is sodium fluorotitanate;

[0044] Step S2: Mix 20mL of intermediate product 1 with 350mL of methanol solution with a mass fraction of 70%, and react to generate intermediate product 2 under the action of T-63MP solid acid catalyst resin; dissolve 18mL of intermediate product 2 in 100mL of THF, and add 3.5g Sodium borohydride was used as a catalyst,...

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Abstract

The invention discloses a self-cleaning powder coating for household appliances and furniture and a preparation method thereof, and belongs to the technical field of powder coatings, the self-cleaning powder coating comprises the following raw materials: modified resin, mixed powder, an aluminum phosphate binder, a curing agent, a leveling agent and a pigment; fluorine-containing polyaryletherketone has the chemical stability, high heat resistance and mechanical strength of common polyarylether, and mixed powder prepared from modified SiO2, modified TiO2 and carbon nanotubes can improve the thermal stability, chemical stability and self-cleaning function of the coating. The related silane coupling agent is prepared by a one-pot method, so that the operation is simple and easy to control; the aluminum phosphate binder is added, so that the corrosion resistance of the coating can be improved; after being sprayed on the surfaces of household appliances or furniture, the powder coating is good in adhesiveness, high in uniformity, attractive and elegant, not prone to falling off and orange peel, long in retention time, capable of preventing stain attachment and convenient to clean articles such as the household appliances and the like.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, in particular to a self-cleaning powder coating for home appliances and furniture and a preparation method thereof. Background technique [0002] Self-cleaning powder coating is an environmentally friendly and efficient coating, which is often used on the surface of metal or plastic devices. It can play a certain antifouling effect and has a good research prospect. [0003] The existing self-cleaning powder coatings generally use the existing resin materials as the base, adding nano-materials to make the coatings have hydrophobic and anti-fouling effects, but the added nano-materials do not match well with the base, and after a long time of use, they are sprayed The paint on the surface of the object is prone to orange peel, which affects the appearance and antifouling effect. Contents of the invention [0004] The object of the present invention is to provide a kind of self-cleaning p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D171/00C09D5/08C09D5/03C09D7/62C09D7/65C09D7/61
CPCC09D171/00C09D5/08C09D5/033C08K2003/2241C08K2201/011C08L2205/025C08L71/00C08K9/06C08K3/22C08K3/36C08K3/041C08K3/32C08K13/06
Inventor 林思歌翁达郭晓玲管淼
Owner 杭州瑞辰塑业有限公司
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