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Preparation method of powdery coating with metal effect

A powder coating and metal effect technology, applied in the field of plastic powder, can solve the problems of easy separation of base powder and metal powder, unstable spraying process, etc., and achieve the effect of eliminating separation and ensuring stability.

Inactive Publication Date: 2019-11-05
浙江聚华材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing metal powder coatings are generally formed by first making the base powder and then mixing the metal powder. The problem with this is that the base powder and the metal powder are easy to separate, and the spraying process is unstable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A preparation method of metal effect powder coating, comprising the following steps:

[0013] Step 1, in parts by mass, mix 80 parts of epoxy resin, 25 parts of polyester, 15 parts of titanium dioxide, 10 parts of barium sulfate, 5 parts of PLA resin, 10 parts of recycled PET, 0.5 parts of industrial salt and 12 parts of metal powder PS Stir together with -5050, the crushing time is 50 seconds, the stirring time is 300 seconds, and the stirring temperature is controlled at 20°C;

[0014] Step 2: put it into the extruder to melt and mix, extrusion parameters: temperature of zone 1 is 125°C, temperature of zone 2 is 120°C, main engine is 45r / min, feeding speed is 25r / min, conveyor belt speed is 45r / min;

[0015] Step 3: Crush the flakes after extrusion, use a 160-mesh screen, the main machine is 45r / min, and the auxiliary mill is 20r / min, until the average particle size is controlled at 45μm.

Embodiment 2

[0017] Include the following steps:

[0018] Step 1: Stir 80 parts of epoxy resin, 25 parts of polyester, 15 parts of titanium dioxide, 10 parts of barium sulfate and 12 parts of metal powder PS-5050 in parts by mass. The crushing time is 50 seconds and the stirring time is 300 seconds, the stirring temperature is controlled at 20°C;

[0019] Step 2: put it into the extruder to melt and mix, extrusion parameters: temperature of zone 1 is 125°C, temperature of zone 2 is 120°C, main engine is 45r / min, feeding speed is 25r / min, conveyor belt speed is 45r / min;

[0020] Step 3: Crush the flakes after extrusion, use a 160-mesh screen, the main machine is 45r / min, and the auxiliary mill is 20r / min, until the average particle size is controlled at 45μm.

[0021] The powder coating prepared by the preparation method can prevent the separation between the base powder and the metal powder, and ensure the stability of the color.

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PUM

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Abstract

The invention discloses a preparation method of a powdery coating with a metal effect. The preparation method comprises the following steps: 1, stirring, by mass, 80-100 parts of an epoxy resin, 20-25parts of a polyester, 10-15 parts of titanium dioxide, 6-10 parts of barium sulfate and 5-12 parts of a metal powder at 15-25 DEG C for 280-300 s, and crushing the obtained mixture for 40-50 s. The powdery coating prepared by the preparation method of the powdery coating with the metal effect can prevent the separation of a base powder and the metal powder during later use.

Description

Technical field: [0001] The invention relates to the field of plastic powders, in particular to a method for preparing metal effect powder coatings. Background technique: [0002] In the existing metal powder coatings, the base powder is prepared first, and then the metal powder is stirred and formed. The problem of doing this is that the base powder and the metal powder are easy to separate, and the spraying process is unstable. Invention content: [0003] The technical problem to be solved by the present invention is to provide a method for preparing metal effect powder coatings that can prevent the separation of base powder and metal powder during later use. The metal effect powder prepared by the preparation method can ensure color stability. [0004] The technical solution of the present invention is to provide a kind of preparation method of metal effect powder coating, comprising the following steps: [0005] Step 1, in parts by mass, stir 80-100 parts of epoxy res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D167/00C09D167/04C09D167/02C09D5/03C09D7/80
CPCC08K2003/2241C08K2003/3045C08L2205/02C08L2205/035C08L2207/20C09D5/032C09D163/00C09D7/80C08L67/00C08L67/04C08L67/02C08K3/00C08K3/22C08K3/30C08K3/08C08K3/16
Inventor 胡钱萍
Owner 浙江聚华材料科技股份有限公司