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High-reflectivity powder coating

A powder coating, high reflectivity technology, applied in powder coatings, reflective/signal coatings, reflectors, etc., can solve the problems of easy falling off of the coating layer and low reflectivity

Inactive Publication Date: 2020-10-27
ZHANGJIAGANG JIANGNAN POWDER COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of high-reflectivity powder coating, be used to solve the problem that the powder coating reflectivity is low in the prior art, coating layer falls off easily

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The application provides a high-reflectivity powder coating. By adding titanium dioxide and reflective additives, the powder coating has a high reflectivity, effectively improves the luminous flux, and achieves energy saving. It specifically includes the following components: polyester Resin, epoxy resin, leveling agent, benzoin, wax powder, titanium dioxide, reflection aid, barium sulfate.

[0029] Wherein, relative to 39 parts by weight of the polyester resin, the epoxy resin is 22-28 parts by weight, and the leveling agent is 0.8-1.2 parts by weight. The viscosity of epoxy resin is 4000-5000mPa.s / 200 degrees, and the acid value is 30-36mPa.s / 200 degrees, while the viscosity of normal resin is 5000-7000mPa.s / 200 degrees, and the acid value is 30-36mPa.s / 200 degrees, the choice of epoxy resin with low acid value and low viscosity ensures the best leveling effect. From the above point of view, further, the epoxy resin is preferably 26 parts by weight, and the leveling ...

Embodiment 1

[0037] Take by weight the polyester resin of 39 weight parts, the epoxy resin of 26 weight parts, the leveling agent of 1 weight part, the benzoin of 0.5 weight part, the wax powder of 0.55 weight part, the titanium dioxide of 30 weight parts, 3 Reflection aid in parts by weight, barium sulfate in 24 parts by weight; Feeding: Put the raw materials into the mixer and mix them; Pre-mixing: Mix the raw materials up and down evenly with a Misaic mixer; Extrusion from the machine; tableting: press the extruded bottom material into flakes with a tablet machine; crushing: crush the sheet-shaped bottom material with a crusher; fine crushing: crush the bottom material with a pulverizer; sieve powder packaging: Screen the powder coating with a rotary sieve, and pack the coating into boxes; the pre-mixing step takes high-speed mixing and side shearing and crushing at the same time; the screw rotation speed of the extruder in the melting extrusion mixing step is 50HZ; the temperature durin...

Embodiment 2

[0039] Take by weight the polyester resin of 39 weight parts, the epoxy resin of 26 weight parts, the leveling agent of 1 weight part, the benzoin of 0.5 weight part, the wax powder of 0.55 weight part, the titanium dioxide of 30 weight parts, 4 Reflection aid in parts by weight, barium sulfate in 24 parts by weight; Feeding: Put the raw materials into the mixer and mix them; Pre-mixing: Mix the raw materials up and down evenly with a Misaic mixer; Extrusion from the machine; tableting: press the extruded bottom material into flakes with a tablet machine; crushing: crush the sheet-shaped bottom material with a crusher; fine crushing: crush the bottom material with a pulverizer; sieve powder packaging: Screen the powder coating with a rotary sieve, and pack the coating into boxes; the pre-mixing step takes high-speed mixing and side shearing and crushing at the same time; the screw rotation speed of the extruder in the melting extrusion mixing step is 50HZ; the temperature durin...

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Abstract

The invention discloses a high-reflectivity powder coating, and relates to the field of powder coatings. According to the application, the high-reflectivity powder coating is prepared from the following components in parts by weight: 36 to 42 parts of polyester resin, 22 to 28 parts of epoxy resin, 0.8 to 1.2 parts of a leveling agent, 0.3 to 0.8 part of benzoin, 0.3 to 0.8 part of wax powder, 25to 35 parts of titanium dioxide, 3 to 8 parts of a reflection aid and 20 to 30 parts of barium sulfate. The reflectivity of the powder coating can be improved, and meanwhile the problem that a coatinglayer is prone to falling off is avoided.

Description

technical field [0001] The invention relates to the field of powder coatings, in particular to a high reflectance powder coating. Background technique [0002] Powder coating is an environmentally friendly coating with zero VOC emissions, which has been widely used in various metal surface coatings including LED lampshades. When the current powder coating is sprayed on the surface of the iron or aluminum LED lampshade, the luminous flux of the LED lamp is low, and a relatively high-power LED lamp is required to achieve the required brightness. Under the background that the country vigorously advocates energy saving, consumption reduction and efficiency improvement, the development of powder coating products that can achieve energy saving will help downstream customers save energy, reduce consumption and increase efficiency, and respond to the country's call for energy conservation and emission reduction with practical actions. [0003] In order to reduce electricity consump...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/03C09D5/33C09D167/00C09D163/00C09D7/61C09D7/65F21V7/24F21V7/28F21V3/10
CPCC08K2003/2241C08K2003/3045C08L2203/20C08L2205/035C09D5/004C09D5/033C09D163/00C09D167/00F21V3/10F21V7/24F21V7/28C08L63/00C08L83/04C08L91/06C08K3/22C08K3/30
Inventor 黎永新刘益田晖
Owner ZHANGJIAGANG JIANGNAN POWDER COATING
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