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Powder coating with low-temperature curing function

A powder coating, low temperature technology, used in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of lack of transparency, improvement, and unfavorable production efficiency, and achieve high transparency, low curing temperature, and bright colors.

Inactive Publication Date: 2013-03-27
宿迁市英杰装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the curing conditions of general powder coatings are 150-180°C, and some have reached 200°C, which makes it difficult to paint some wood and plastics, which is not conducive to the improvement of production efficiency.
At the same time, if the powder coatings on the market are used for the coating of furniture, they lack the disadvantages of high transparency, not bright colors, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 1. The preparation of the transparent iron oxide pigment of the present invention: in the four-necked flask that stirrer, thermometer, bubbler are housed, add water 75% earlier, add ferrous sulfate 10.8% under stirring, and the solution pH is adjusted to 2~3, heat up to about 40°C, add 0.045% sodium hexametaphosphate and 0.54% sodium dodecylbenzenesulfonate into the remaining 12.9% of water, stir evenly, and then pass into the water mixed with ammonia gas air to obtain a fine iron hydroxide colloidal solution, then input air to obtain crystal nuclei, then raise the temperature of the solution to 50-60°C, and continue to pass in air mixed with ammonia to obtain the finished product.

[0013] 2. The preparation of the low-temperature curable powder coating of the present invention: 45% of unsaturated polyester resin, 20% of epoxy resin, 3.5% of photosensitizer, 1.5% of leveling agent, 0.5% of defoamer, 20.5% of filler and transparent Add 8% of the iron oxide pigment into ...

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PUM

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Abstract

The invention relates to a powder coating with a low-temperature curing function. The powder coating comprises the following components in percentage by weight: 40-60 percent of unsaturated polyester resin, 20-25 percent of epoxy resin, 1-5 percent of photosensitizer, 0.5-1.5 percent of flatting agent, 0.1-1 percent of defoaming agent, 15-25 percent of filler, 8-15 percent of transparent iron oxide pigment and 0.1-0.5 percent of white carbon black. The powder coating with alow-temperature curing function is high in transparency, bright in color and low in curing temperature; when the powder coating is sprayed, the powder coating is preheated to 50-70 DEG C and maintained at the temperature for 5-8min, then subjected to electrostatic spraying, blown by hot air with the temperature being about 120 DEG C for 20min and then naturally cooled; and the powder coating is suitable for coating of wooden materials.

Description

technical field [0001] The invention relates to a powder coating, in particular to a low-temperature curable powder coating. Background technique [0002] Due to various advantages of powder coating, its use in modern society is more and more extensive. Powder coating has no water or solvent, it is completely solid and easy to transport; there is no bacterial infection, no need to add preservatives; the smell dissipates quickly after coating. Because of these advantages of powder coating, its use in modern society is more and more extensive. However, the general curing conditions of powder coatings are 150-180°C, and some have reached 200°C, which makes it difficult to paint some wood and plastics, which is not conducive to the improvement of production efficiency. At the same time, if the powder coatings on the market are used for the coating of furniture, they lack the disadvantages of high transparency and dull color. Contents of the invention [0003] The object of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D163/00C09D5/03C09D7/12
Inventor 葛亚
Owner 宿迁市英杰装饰材料有限公司
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