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Graphene-modified resin powder coating and production process thereof

A technology of graphene modification and resin powder, which is applied in powder coatings, epoxy resin coatings, fireproof coatings, etc., to achieve the effects of reducing dust pollution, improving utilization rate, and obvious flame retardant effect

Inactive Publication Date: 2014-12-10
周诚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Resin powder coatings in the prior art have higher requirements for mechanical properties, electrical conductivity, thermal conductivity, flame retardancy, etc., and although there is graphene added to the composite material in the prior art to enhance its performance, but Adding graphene in the field of resin powder coatings, there is no related report

Method used

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  • Graphene-modified resin powder coating and production process thereof
  • Graphene-modified resin powder coating and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Select formula components: polyester resin: 60%; filler: 30%; additives: 7%; pigment: 3%; mixed in a high-speed mixer, and then the dry ingredient mixture Melting in the machine, the melting time is 10min, the melting temperature is divided into three zones, the temperature of the first zone is 100°C, the temperature of the second zone is 100°C, and the temperature of the third zone is 90°C. The material melted into a slurry is then extruded by a screw machine, rolled into a sheet, cooled to solidify the mixture, and then pressed into a sheet, and then the sheet is ground into a granular powder according to particle classification and separation, and its particle size is 10 μm , Made of resin powder coating. Then the mixed powder is applied to the metal substrate by electrostatic spraying and electrostatic fluidized bed method and heated to melt the powder particles, the melting temperature is 180° C., and the melting time is 10 minutes, so that the powder coating is so...

Embodiment 2

[0038] Select the following formula: polyester resin 70%; filler: 19.995%; additives: 7%; Melting in a mixer heated at high temperature, the melting time is 30 minutes, and the melting temperature is divided into three zones, the temperature of the first zone is 100°C, the temperature of the second zone is 100°C, and the temperature of the third zone is 90°C. The material melted into a slurry is then extruded by a screw machine, rolled into a sheet, cooled to solidify the mixture, and then pressed into a sheet, and then the sheet is ground into a granular powder according to particle classification and separation, and its particle size is 10 μm , and then the powder is applied to the metal substrate by electrostatic spraying and electrostatic fluidized bed method and heated to melt the powder particles. The melting temperature is 180 °C and the melting time is 10 minutes, so that the powder coating is solidified. The coating index is shown in the table 1.

Embodiment 3

[0040] According to the technique of embodiment 2, the filler in the formula is changed into 19%, graphene is changed into 1%, and coating index is as table 1.

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Abstract

The invention relates to graphene-modified resin powder coating and a production process thereof. The graphene-modified resin powder coating comprises the following components in percentage by weight: 50-80 percent of resin, 0-40 percent of filler, 5-7 percent of an auxiliary agent, 0.2-3 percent of pigment and 0.005-30 percent of graphene. According to the graphene-modified resin powder coating provided by the invention, a proper amount of graphene is added in the traditional resin powder coating, so that the mechanical property, the conductivity, thermal conductivity, flame resistance, corrosion resistance and weather resistance of the resin powder coating are greatly improved; the graphene-modified resin powder coating has a broad market prospect.

Description

technical field [0001] The invention relates to a graphene-modified resin powder coating and a production process thereof, belonging to the field of powder coating manufacturing. Background technique [0002] A powder coating composition is a solid composition generally comprising a solid film-forming resin or a mixture of different kinds of resins, usually with one or more pigments and optionally one or more performance additives such as plasticizers, stabilizers, flow Additives and extenders. [0003] As a two-dimensional carbon crystal discovered in recent years, graphene has a strength of 130GPa, making it the strongest material in the world. It also has a large specific surface area, good hydrophobicity and excellent wear resistance. In addition, graphene conducts heat better than any other material at present, and its thermal conductivity is about 4000wm / k, which is 5 times that of copper and 2 times that of diamond. [0004] Resin powder coatings in the prior art ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D163/00C09D175/04C09D127/12C09D5/03C09D5/24C09D5/18
Inventor 周诚陈晓蝶梁志强潘荣健
Owner 周诚
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