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Wood grain powder coating and production method thereof

A technology for powder coatings and production methods, applied in powder coatings, coatings and other directions, can solve the problems of affecting visual effects, easy discoloration of light-colored coatings when baking, and high leveling requirements.

Inactive Publication Date: 2020-10-23
DEQING COUNTY JINQIU PLASTIC POWDER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The powder coating of the first spraying of the three-dimensional wood grain powder coating is mostly light-colored, so as to form a contrast with the powder coating of the second or third spraying, so as to achieve a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Prepare the powder coating as follows:

[0035] In the first step, mixing, the powder coating is mixed according to the following ratio;

[0036] Low acid value resin 58%

[0037] HAA curing agent 2.6%

[0038] Wax powder 0.4%

[0039] Polypropylene composite micronized wax 0.5%

[0040] Phenolic Antioxidants 0.2%

[0041] High efficiency phosphite 0.2%

[0042] Precipitated barium sulfate 37.5%;

[0043] Other components are additives such as coloring pigments.

[0044] The second step is melt extrusion. The mixed raw materials are heated and melted and then extruded into flakes. The extruded flakes are transported to the crushing device along the conveyor belt, and the flakes are cooled during the conveying process. It can be extruded by a screw extruder, and the hot melting device includes a first zone and a second zone, the temperature of the first zone is stable at 115°C, and the temperature of the second zone is 105°C.

[0045] The third step is crushing a...

Embodiment 2

[0048] Prepare the powder coating according to the following steps:

[0049] In the first step, mixing, the powder coating is mixed according to the following ratio;

[0050] Low acid value resin 63%

[0051] HAA curing agent 2.4%

[0052] Wax powder 0.5%

[0053] Polypropylene composite micronized wax 0.6%

[0054] Phenolic Antioxidants 0.4%

[0055] High efficiency phosphite 0.4%

[0056] Precipitated barium sulfate 32%;

[0057] Other components are additives such as coloring pigments.

[0058] The second step is melt extrusion. The mixed raw materials are heated and melted and then extruded into flakes. The extruded flakes are transported to the crushing device along the conveyor belt, and the flakes are cooled during the conveying process. It can be extruded by a screw extruder. The hot-melt device includes a first zone and a second zone. The temperature of the first zone is stable at 100°C, and the temperature of the second zone is 110°C.

[0059] The third step ...

Embodiment 3

[0062] Prepare the powder coating according to the following steps:

[0063] In the first step, mixing, the powder coating is mixed according to the following ratio;

[0064] Low acid value resin 68%

[0065] HAA curing agent 2.7%

[0066] Wax powder 0.8%

[0067] Polypropylene composite micronized wax 0.7%

[0068] Phenolic Antioxidants 0.7%

[0069] High efficiency phosphite 0.7%

[0070] Precipitated barium sulfate 25.6%;

[0071] Other components are additives such as coloring pigments.

[0072] The second step is melt extrusion. The mixed raw materials are heated and melted and then extruded into flakes. The extruded flakes are transported to the crushing device along the conveyor belt, and the flakes are cooled during the conveying process. It can be extruded by a screw extruder. The hot melting device includes a first zone and a second zone. The temperature of the first zone is stable at 115°C, and the temperature of the second zone is 120°C.

[0073] The third st...

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Abstract

The invention provides a wood grain powder coating. The powder coating is a first three-dimensional simulation wood grain powder coating. The powder coating is prepared from the following raw materials in percentage by weight: 58%-68% of low-acid-value resin, 2.4%-2.8% of an HAA curing agent, 0.4%-0.8% of wax powder, 0.4%-0.8% of polypropylene composite micronized wax, 0.2%-0.8% of a phenolic antioxidant, 0.2%-0.8% of efficient phosphite ester, and 25%-38% of precipitated barium sulfate. The powder coating is good in leveling property, good in color retention effect and suitable for the firstthree-dimensional wood grain coating.

Description

technical field [0001] The invention relates to the technical field of powder coating production, in particular to a wood grain powder coating and a production method thereof. Background technique [0002] Powder coatings started in the late 1930s. The earliest prototype was to spray polyethylene powder onto metal surfaces in a molten state by flame spraying. Due to its low pollution, pollution-free, high labor production efficiency and ease of automatic coating, powder coatings have become a rapidly developing new variety and new technology of coatings, and have become recognized as high production efficiency, excellent coating performance, ecological Environmental protection and economical and 4E coating products have become the fastest growing one among various coating varieties. [0003] Wood grain transfer printing powder coating for aluminum profiles is a new type of powder coating with high decorative properties. It has been widely used in building doors and windows,...

Claims

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Application Information

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IPC IPC(8): C09D201/00C09D5/03C09D7/61C09D7/63C09D7/65
CPCC08K2003/3045C08L2205/03C09D5/031C09D5/033C09D201/00C08L91/06C08L23/12C08K13/02C08K3/30C08K5/13C08K5/524
Inventor 李宏伟蔡荣李嘉诚廖叶根
Owner DEQING COUNTY JINQIU PLASTIC POWDER CO LTD