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Transparent powder coating

A powder coating and transparent technology, applied in anti-corrosion coatings, polyester coatings, coatings, etc., can solve the problems of large decay, migration, and single surface, and achieve improved leveling, convenient storage and transportation, and excellent weather resistance Effect

Inactive Publication Date: 2018-05-15
成都信达高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods currently focus on a single coating film on the surface.
At the same time, methods such as adding additives or cold spelling have certain limitations. In the Florida exposure experiment, migration will occur, and the decay will be great in the later stage.

Method used

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  • Transparent powder coating
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 A kind of preparation of transparent powder coating

[0025] A kind of transparent powder paint, described powder paint comprises following weight component raw material:

[0026]

[0027] The above-mentioned raw materials are mixed in proportion, kneaded and extruded in an extruder, and then crushed by tableting, pulverized and sieved by a micro pulverizer to obtain the transparent powder coating.

Embodiment 2

[0028] Embodiment 2: The application of a kind of transparent powder coating, the above-mentioned powder coating is used for various metal workpieces.

[0029] (1) Pretreatment: In the actual application process, the pretreatment process is different according to the substrate material and the specific application site, and the above pretreatment process is adjusted according to different actual application processes.

[0030] (2) Spraying

[0031] The coating is sprayed onto the surface of the metal workpiece by corona electrostatic spraying. The curing parameters during the spraying process are 200° C. for 10 minutes. The appearance of the coating is flat and high-gloss, and the high-gloss is more than 80% of the gloss measured by a 60-degree gloss meter.

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PUM

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Abstract

The invention relates to a transparent powder coating, which is prepared from, by weight, 75-95 parts of polyester resin, 0.9-10 parts of curing agent, 0.2-2 parts of flatting agent, 0.2-1.5 parts ofwetting agent, 0.2-1 part of antifoaming agent, 0-1 part of stearic acid, 0.001-3 parts of dye, 0-7 parts of delustering agent. The transparent powder coating has advantages of high gloss, high hardness, good transparency, good chemical corrosive resistance, good yellowing resistance, and good decoration property; the transparent powder coating is widely applied to lightshade of various metal workpieces.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a transparent powder coating. Background technique [0002] Powder coating is a new type of environmentally friendly material derived mainly 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. Powder coatings are used in practical applications, such as outdoor gates, balcony guardrails, etc. After a period of time, the coating film will change to a certain extent, such as loss of gloss, darkening or cold white, rust spots and cracks on the coating surface. [0003] At present, powder coating practitioners mainly use the following methods to improve the weather resistance of powder coatings: 1. Select suitable polyeste...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D5/08C09D5/46C09D7/63
CPCC08K5/09C08K5/20C08K5/34924C09D5/033C09D5/08C09D167/00
Inventor 王雯琪李论张光红
Owner 成都信达高分子材料有限公司
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