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Pearlescent powder composite powder coating and preparation method thereof

A powder coating and pearlescent powder technology, applied in powder coatings, polyester coatings, coatings, etc., can solve problems such as environmental pollution, raw material performance impact, powder coating formula design, raw material matching and use, etc., to improve stability and electrification properties, promote electrification, and promote stability

Inactive Publication Date: 2019-10-01
山东麦都孚新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of organic solvents in the process, it pollutes the environment to a certain extent, and organic solvents will affect the performance of some raw materials
[0008] In addition, supercritical CO 2 There are many studies on the preparation of powder coatings with different functions by fluid technology, but because the functions of each coating are different, although the same preparation technology is used, the formula design and matching of raw materials for powder coatings are different.

Method used

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  • Pearlescent powder composite powder coating and preparation method thereof
  • Pearlescent powder composite powder coating and preparation method thereof
  • Pearlescent powder composite powder coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The composition of raw materials is as follows, in weight percentage:

[0039]

[0040] The acid value of polyneopentyl terephthalate is 28 mgKOH / g.

[0041] The quaternary ammonium salt charge regulator is 3-lauramidopropyl trimethylammonium methyl sulfate methyl ester.

[0042] The hindered amine structural light stabilizer is Tinuvin 144 from BASF.

[0043] Put the raw materials into the supercritical reactor and mix evenly, control the CO in the reactor 2 The content is 38wt%, the temperature is 66℃, and the pressure is 110Kg / cm 2 , The outlet temperature is 58℃. The pearl powder particles are partially or completely wrapped, and the whole powder coating particles are micro-spherical pearl powder composite powder coatings.

[0044] The specific properties of the product of Example 1 are shown in Table 1.

Embodiment 2

[0046] The composition of raw materials is as follows, in weight percentage:

[0047]

[0048] The acid value of polyneopentyl terephthalate is 40 mgKOH / g.

[0049] The quaternary ammonium salt charge regulator is 3-lauramidopropyl trimethylammonium methyl sulfate methyl ester.

[0050] The hindered amine structural light stabilizer is Tinuvin 144 from BASF.

[0051] Put the raw materials into the supercritical reactor and mix evenly, control the CO in the reactor 2 The content is 26wt%, the temperature is 52℃, and the pressure is 95Kg / cm 2 , The outlet temperature is 56℃. The pearl powder particles are partially or completely wrapped, and the whole powder coating particles are micro-spherical pearl powder composite powder coatings.

[0052] The specific properties of the product of Example 2 are shown in Table 1.

Embodiment 3

[0054] The composition of raw materials is as follows, in weight percentage:

[0055]

[0056]

[0057] The acid value of polyneopentyl terephthalate is 30 mgKOH / g.

[0058] The quaternary ammonium salt charge regulator is 3-lauramidopropyl trimethylammonium methyl sulfate methyl ester.

[0059] The hindered amine structural light stabilizer is Tinuvin 144 from BASF.

[0060] Put the raw materials into the supercritical reactor and mix evenly, control the CO in the reactor 2 The content is 42wt%, the temperature is 49℃, and the pressure is 115Kg / cm 2 , The outlet temperature is 60℃. The pearl powder particles are partially or completely wrapped, and the whole powder coating particles are micro-spherical pearl powder composite powder coatings.

[0061] The specific properties of the product of Example 3 are shown in Table 1.

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Abstract

The invention belongs to the technical field of powder coating, and particularly relates to a pearl powder composite powder coating and a preparation method thereof. The pearl powder composite powder coating is prepared from poly(neopentyl glycol)terephthalate, triglycidylisocyanurate, quaternaries charge control agent, acrylate based leveling agent, benzoin degasifying agent, hindered amine structural photo-stabilizer, pigment and pearl powder. The pearl powder composite powder coating has high content of pearl powder, the coating layer formed by the powder coating has surface effect as the liquid pearly coating, has good electrified property, is easy to realize electrostatic spraying construction and is stable in spraying.

Description

Technical field [0001] The invention belongs to the technical field of powder coatings, and particularly relates to a pearlescent powder composite powder coating and a preparation method thereof. Background technique [0002] Powder coating is a solvent-free, 100% solid powder coating. It has the advantages of zero VOC emissions, recyclability, and excellent film performance. In recent years, various countries have continuously improved environmental protection requirements, and polluting coating materials have been continuously replaced. As a powder coating with obvious environmental protection advantages, it has been well developed. Among them, in different fields such as metal materials, polymer plastic materials, and wood materials, powder coatings are constantly replacing liquid paints and becoming more widely used and more environmentally friendly new coating materials. [0003] Pearlescent powder is a kind of pearlescent pigment whose main component is mica flake coated wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/02C09D5/36C09D5/03C09D7/61C09D7/63
CPCC08K3/04C08K5/34924C08K5/41C08K13/02C08K2003/2241C09D5/033C09D5/36C09D167/02Y02P20/54
Inventor 肖建刚刘雷吴建群王云飞李宝
Owner 山东麦都孚新材料科技有限公司
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