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3D (three-dimensional) flash metal powder coating and preparation method thereof

A metal powder and three-dimensional technology, which is applied in the field of 3D three-dimensional scintillation metal powder coating and its preparation, can solve the problems of poor weather resistance and chemical resistance of the coating film, uneven spraying of metal pigments, and influence on storage stability. The quality is guaranteed, the 3D stereo effect is obvious, and the effect of easy blackening is solved

Active Publication Date: 2019-03-19
JINHUA JIAZHEN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems in the preparation process of the existing external addition metal effect powder coatings. Because the metal powder is usually constructed by post-addition, a large part of the metal pigments still fail to bond after binding, resulting in the metal pigments being damaged during the spraying process. Uneven spraying, surface defects of the coating film, insufficient aesthetics, etc.
Moreover, because aluminum is an amphoteric active metal, it is easily oxidized and blackened when exposed to acid-base solutions or oxygen in the air, which affects its metallic luster and produces a large amount of hydrogen gas, which affects its storage stability, weather resistance and corrosion resistance of the coating film. Chemical resistance is also relatively poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 3D three-dimensional flashing metal powder coating, calculated by mass parts, it includes 45-55 parts of hydroxyl polyester resin, 12-18 parts of isocyanate curing agent, 0.5-1.5 parts of leveling agent, 15-25 parts of precipitated barium sulfate, dispersant 1 -2 parts, 3-10 parts of modified silver powder, the particle size of modified silver powder is 30-50um.

[0022] The modified silver powder includes the following raw materials in parts by mass: 1-3 parts of trifluoroethyl acrylate, 0.5-1.2 parts of vinyl acetic acid, 25-35 parts of absolute ethanol, 15-20 parts of distilled water and polyperfluoroethylene propylene emulsion (referred to as F46) 1-2 parts, 10-15 parts of silver powder with a particle size of 30-50um.

[0023] The preparation method of 3D three-dimensional flashing metal powder coating comprises the following steps:

[0024] Step 1 Preparation of modified silver powder First weigh 10-15 parts of silver powder, 15-20 parts of distilled water and 25...

Embodiment 2

[0030] 3D three-dimensional flashing metal powder coating, calculated in parts by mass, includes 50 parts of hydroxyl polyester resin, 15 parts of isocyanate curing agent, 1 part of leveling agent, 20 parts of precipitated barium sulfate, 1 part of dispersant, and 5 parts of modified silver powder. The particle size of the modified silver powder is 40um.

[0031] The modified silver powder includes the following raw materials in parts by mass: 2 parts of trifluoroethyl acrylate, 0.8 parts of vinyl acetic acid, 30 parts of absolute ethanol, 18 parts of distilled water and 1 part of polyfluoroethylene propylene emulsion, silver powder with a particle size of 30-50um 10 servings.

[0032] The preparation method of 3D three-dimensional flashing metal powder coating comprises the following steps:

[0033] Step 1 Preparation of modified silver powder First weigh 10 parts of silver powder, 18 parts of distilled water and 30 parts of absolute ethanol and put them into the reaction ke...

Embodiment 3

[0038] 3D three-dimensional flashing metal powder coating, calculated by mass parts, includes 45 parts of hydroxyl polyester resin, 12 parts of isocyanate curing agent, 0.5 parts of leveling agent, 15 parts of precipitated barium sulfate, 1.5 parts of dispersant, and 3 parts of modified silver powder. The particle size of the modified silver powder is 30um.

[0039] The modified silver powder includes the following raw materials in parts by mass: 1 part of trifluoroethyl acrylate, 0.5 parts of vinyl acetic acid, 25 parts of absolute ethanol, 15 parts of distilled water, 1 part of polyfluoroethylene propylene emulsion, and 12 parts of silver powder with a particle size of 30um .

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PUM

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Abstract

The invention provides a 3D (three-dimensional) flash metal powder coating and a preparation method thereof, belongs to the technical field of powder coatings, and solves the problems of poor decorative property and the like of an existing powder coating. The 3D flash metal powder coating comprises 45-55 parts of hydroxy polyester resin, 12-18 parts of curing agents, 0.5-1.5 parts of leveling agents, 15-25 parts of precipitated barium sulphate, 1-2 parts of dispersing agents and 3-10 parts of modified silver powder. The modified silver powder is prepared, the components are weighed, mixed, extruded and crushed to obtain the 3D flash metal powder coating, the powder coating has excellent metal texture, metal powder is uniformly distributed, the surface of a film is smooth, and the film hasexcellent weather resistance. The powder coating is extruded once and uniformly mixed, production technologies are simplified, and product quality can be ensured in the spraying process.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, and in particular relates to a 3D three-dimensional scintillation metal powder coating and a preparation method thereof. Background technique [0002] Powder coating is a new type of environmentally friendly material derived from petrochemical raw materials. It is mainly composed of low molecular weight resins, additives, fillers, etc., and is prepared, sprayed, and baked under certain conditions to form a certain appearance and gloss. , color, and a coating film that acts as an anti-corrosion and decorative effect on the surface of the object. As a kind of powder coating, metal powder coating has metallic luster, gorgeous multi-color effect and outstanding protection function. Appearance decoration, welcomed by customers. [0003] Metal powder coatings can be divided into flat and textured products according to the flatness of the coating film appearance. According to the gloss effect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D5/03C09D7/61C09D7/62
CPCC08K2003/0806C08K2003/3045C09D5/033C09D175/06C08K13/06C08K3/30C08K9/10C08K3/08
Inventor 宋远华盛桢汪旭芳
Owner JINHUA JIAZHEN TECH DEV CO LTD