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Powder coating with super-weathering resistance, preparation method and application thereof

A powder coating and super weather-resistant technology, applied in powder coatings, polyester coatings, coatings, etc., can solve the problems of high cost, complex formula components, and inability to be widely used, so as to achieve low price and improve the stability of coating film properties, excellent chemical resistance

Inactive Publication Date: 2010-03-17
TIGER DRYLAC TAICANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese invention (CN101298530) discloses a kind of fluorine-containing polymer modified powder coating, and formula component is complicated, and cost is higher, also can not popularize and apply on a large scale

Method used

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  • Powder coating with super-weathering resistance, preparation method and application thereof
  • Powder coating with super-weathering resistance, preparation method and application thereof
  • Powder coating with super-weathering resistance, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. The ratio of parts by weight of powder coating with super weather resistance:

[0036] Weather-resistant hydroxyl-terminated polyester resin 44 parts

[0037] Thermosetting fluorocarbon resin 8.9 parts

[0038] 11 parts of blocked isocyanate curing agent

[0039] Solubilizer 14.5 parts

[0040] 3.6 parts of curing catalyst

[0041] Leveling agent 0.9 parts

[0042] Degassing agent 0.6 parts

[0043] 16.5 parts of pigments and fillers

[0044] 2. Preparation of powder coating with super weather resistance:

[0045] ① Select weather-resistant hydroxyl-terminated polyester resin, thermosetting fluorocarbon resin, blocked isocyanate curing agent, solubilizer, curing catalyst, leveling agent, degassing agent and pigments and fillers into the mixture according to the parts by weight described in 1 above In the tank (1), then through the extruder (2) after co-extrusion, then through the fan (3) to cool, also can use the heat exchanger (4) to transport cold air for fu...

Embodiment 2

[0053] 1. The ratio of parts by weight of powder coating with super weather resistance:

[0054] Weather-resistant carboxyl-terminated polyester resin 60 parts

[0055] Thermosetting fluorocarbon resin 5.5 parts

[0056] Triglycidyl isocyanurate (TGIC) 5 parts

[0057] Leveling agent 1.1 parts

[0058] Degasser 0.4 part

[0059] 27.5 parts of pigments and fillers

[0060] Matting agent 0.5 parts

[0061] 2. Preparation of powder coating with super weather resistance:

[0062] ① Select weather-resistant carboxyl-terminated polyester resin, thermosetting fluorocarbon resin, triglycidyl isocyanurate, leveling agent, degassing agent, pigments and fillers and matting agent into the mixture according to the parts by weight described in the above 1. In the tank (1), then through the extruder (2) after co-extrusion, then through the fan (3) to cool, also can use the heat exchanger (4) to transport cold air for further cooling, to obtain the tablet material;

[0063] ②Take the t...

Embodiment 3

[0068] Weather-resistant carboxyl-terminated polyester resin 50 parts

[0069] Thermosetting fluorocarbon resin 6 parts

[0070] Triglycidyl isocyanurate (TGIC) 5 parts

[0071] Matting agent 3 parts

[0072] Leveling agent 0.8 parts

[0073] Degasser 0.4 part

[0074] 34.8 parts of pigments and fillers

[0075] 2. Preparation of powder coating with super weather resistance:

[0076] ① Select weather-resistant carboxyl-terminated polyester resin, thermosetting fluorocarbon resin, triglycidyl isocyanurate, leveling agent, degassing agent, pigments and fillers and matting agent into the mixture according to the parts by weight described in the above 1. In the tank (1), then through the extruder (2) after co-extrusion, then through the fan (3) to cool, also can use the heat exchanger (4) to transport cold air for further cooling, to obtain the tablet material;

[0077] ②Take the tabletting material obtained in step ①, and use the auxiliary mill (5) to preliminarily grind to...

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Abstract

The invention discloses powder coating with super-weathering resistance, a preparation method and an application thereof. The powder coating comprises the following raw materials in parts by weight: 40-90 parts of weather-resistant polyester resin, 3-30 parts of thermosetting fluorocarbon resin, 4-50 parts of curing agent, 0.1-1.5 parts of flatting agent, 0.2-0.8 part of degasifying agent, 0-4.5 parts of defoaming agent and 4-45 parts of pigment and filler. The powder coating with super-weathering resistance provided by the invention has scientific and reasonable proportioning in the aspects of raw material composition and raw materials, fine comprehensive properties such as flexibility, hardness, adhesive force and the like, stable chemical property, easy storage, performances of acid rain, ozone, ultraviolet ray and chemical medicine resistance and the like in long-term outdoor use, environment protection and wide application range. The preparation method provided by the invention has reasonable processes, strong operability, high qualified rate of finished products and capability of realizing industrialized production.

Description

technical field [0001] The invention relates to a powder coating, in particular to a powder coating with super weather resistance, a preparation method thereof and its application in preparing a weather resistance decorative coating. Background technique [0002] In the past ten years, with the rapid development of my country's economy, the demand for high-grade decorative powder coatings has also increased year by year, and new requirements have been put forward for super weather-resistant powder coatings. Powder coatings based on thermosetting fluorocarbon resins have good comprehensive performance in terms of weather resistance and chemical resistance. Thermosetting fluorocarbon powder coatings can be used as transparent varnishes. The coating has good storage stability and good physical and mechanical properties of the coating film. It is the variety with the best weather resistance in powder coatings, but it is expensive and cannot be widely used, and most customers can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/03
Inventor 刘际平姜兴盛邵波齐红俊
Owner TIGER DRYLAC TAICANG
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