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Modified oxide, powder coating and its preparation method and application

A powder coating and oxide technology, applied in the field of powder coatings, can solve problems such as affecting product appearance, poor leveling performance of powder coatings, etc., to meet decorative requirements, solve agglomeration, and improve the effect of powder coating rate.

Active Publication Date: 2017-10-24
四川长虹技佳精工有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The application technology of powder coatings in metal protection is very mature, but it is mainly used in lower-end product protection, and the spraying area reaches 1-2m 2 For flat panel spraying, such as TV casings, powder coatings are required to have the characteristics of high gloss and high leveling. For example, high gloss means that the gloss is measured at a 60° angle with a gloss meter, and the gloss is ≥ 85°; the shortcomings of existing powder coatings with poor leveling performance are enlarged. affect the appearance of the product

Method used

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  • Modified oxide, powder coating and its preparation method and application
  • Modified oxide, powder coating and its preparation method and application
  • Modified oxide, powder coating and its preparation method and application

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preparation example Construction

[0061] The preparation method of the modified oxide in the modified example comprises the following steps:

[0062] a. Mix and stir the oxide, triethanolamine fatty acid quaternary ammonium salt, and acetone to dissolve all the oxide and modifier to obtain a mixture; the addition amount of triethanolamine fatty acid quaternary ammonium salt is 2.6% of the oxide mass. %; the amount of acetone added so that the oxide, triethanolamine fatty acid quaternary ammonium salt can be completely dissolved;

[0063] b. Control the temperature of the mixture to ≤50°C, and stir to evaporate the solvent;

[0064] c. Grinding the mixture after the volatile solvent to a particle size of 10-100nm to obtain a modified oxide;

[0065] Among them, the oxide is obtained by mixing nano fumed silica and alumina C at a mass ratio of 1:2.2.

[0066] The obtained powder coating is used for the spraying of the metal back cover of the TV set, and the spraying effect is shown in Table 3.

Embodiment

[0084] The preparation method of modified oxide in the embodiment comprises the following steps:

[0085] a, mixing and stirring the oxide, ester-based quaternary ammonium salt, and ethanol to dissolve the oxide and modifier to obtain a mixture; the addition of triethanolamine fatty acid quaternary ammonium salt is 2.6% of the oxide mass in terms of oxide mass; The amount of acetone added is enough to completely dissolve the oxide and triethanolamine fatty acid quaternary ammonium salt;

[0086] b. Control the temperature of the mixture to ≤50°C, and stir to evaporate the solvent;

[0087] c. Grinding the mixture after the volatile solvent to a particle size of 10-100nm to obtain a modified oxide;

[0088] Among them, the oxide is obtained by mixing fumed silica and alumina C at a mass ratio of 1:2.2.

[0089] Gained modified oxide and other raw materials are weighed according to the embodiment 1-7 in table 4 respectively, and then the powder coating is prepared according to...

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Abstract

The invention belongs to the field of powder coatings, and in particular relates to a modified oxide, powder coatings and a preparation method and application thereof. The object of the present invention is to provide a modified oxide capable of improving the leveling and fluidization properties of powder coatings in a balanced manner, a preparation method thereof, and a powder coating prepared therefrom. The preparation method of the modified oxide of the present invention is as follows: a, dissolve the oxide and the modifier in a solvent to obtain a mixture; b, control the temperature of the mixture, and stir until the solvent is volatilized; c, grind the mixture obtained by volatilizing the solvent in step b to obtain A modified oxide with a particle size of 10-100nm; the oxide described in step a is at least one of nano fumed silica and alumina C.

Description

technical field [0001] The invention belongs to the field of powder coatings, and in particular relates to a modified oxide, powder coatings and a preparation method and application thereof. Background technique [0002] At present, televisions are increasingly developing in the direction of ultra-thinning. However, the appearance grade of the plastic back cover is low, the heat dissipation efficiency is low, and the back cover made is often thicker, and the shape can no longer meet the development requirements of the TV set. Therefore, the mainstream trend of metal back cover replacing plastic back cover as TV back cover material is irresistible. As the metal back cover is an easy-to-corrosion part, the anti-corrosion and decorative effects of its surface are particularly important. Although the existing powder coating can meet the anti-corrosion requirements, it cannot meet the decoration requirements of the TV casing due to the poor leveling property of the coating. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/28C09C1/40C09C3/04C09C3/10C09D5/03C09D5/08C09D7/12
Inventor 席兵王亮智茂永
Owner 四川长虹技佳精工有限公司
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