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Conductive epoxy polyester powder coating

A technology of powder coating and oxy-polyester, applied in powder coatings, conductive coatings, polyester coatings, etc., can solve the problems of difficult to guarantee product quality, large difference in surface resistance of coatings, and incompatibility between input and output, etc. Achieve excellent electrical conductivity, easy mixing, and stable resistance.

Inactive Publication Date: 2020-11-13
HUZHOU JIACHENG POWDER COATINGS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The proportion of conductive mica is high, but the conductive effect is not ideal, and the input and output are not proportional;
[0004] 2. Conductive mica has a large oil absorption capacity, and the proportion of resin content in the coating needs to be high to maintain good leveling of the coating surface, and the production cost is relatively high;
[0005] 3. The surface resistance of the coating varies greatly, and pre-mixing affects its surface resistance, making its conductivity unstable, making it difficult to guarantee product quality;
[0006] 4. The effect of bromine addition equipment on the workpiece is not ideal, and the efficiency of bromine addition is low
[0007] Therefore, it is urgent to propose a new conductive epoxy polyester powder coating to solve the unsatisfactory conductive effect of traditional epoxy polyester powder coatings, unstable electrical conductivity and the need for a high proportion of resin content to ensure the leveling of the coating surface The problem

Method used

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  • Conductive epoxy polyester powder coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1: A conductive epoxy polyester powder coating is composed of the following components by weight: 36 parts of polyester resin, 24 parts of epoxy resin, 0.5 part of graphite, 1 part of auxiliary agent, 1 part of colorant 0.2 parts of conductive mica, 0.2 parts of brominated carbon nanotubes, 1 part of filler, wherein the additives include leveling agent, defoamer and anti-interference agent, the component ratio is 1:0.3:0.3, and the filler is precipitated barium;

[0050] Its preparation method comprises the following steps:

[0051] S1. Preparation of bromine-added carbon nanotubes: place the carbon nanotubes in a bromine-adding device at 55°C, and make them after adding bromine for 12 hours to obtain bromine-added carbon nanotubes;

[0052] S2. Making masterbatch: pre-mix 0.2 parts of conductive mica, 0.5 parts of graphite, 0.2 parts of carbon nanotubes, 36 parts of polyester resin, and 24 parts of epoxy resin in a stirring pot, and stir at 20°C to 25°C. Th...

Embodiment 2

[0059] Embodiment 2: A kind of conductive epoxy polyester powder coating is made up of the following components by weight: 45 parts of polyester resins, 30 parts of epoxy resins, 1.2 parts of graphite, 1.5 parts of auxiliary agents, 15 parts of colorants 0.4 parts of conductive mica, 0.4 parts of brominated carbon nanotubes, 15 parts of fillers, wherein the additives include leveling agent, defoamer and anti-interference agent, the component ratio is 1:0.3:0.3, and the filler is precipitated barium;

[0060] Its preparation method comprises the following steps:

[0061] S1. Preparation of bromine-added carbon nanotubes: place the carbon nanotubes in a bromine-adding device at 55°C, and make them after adding bromine for 12 hours to obtain bromine-added carbon nanotubes;

[0062] S2. Making masterbatch: pre-mix 0.4 parts of conductive mica, 1.2 parts of graphite, 0.4 parts of carbon nanotubes, 45 parts of polyester resin, and 30 parts of epoxy resin in a stirring pot, and stir ...

Embodiment 3

[0069] Embodiment 3: A conductive epoxy polyester powder coating is composed of the following components by weight: 54 parts of polyester resin, 36 parts of epoxy resin, 2 parts of graphite, 2 parts of auxiliary agent, and 30 parts of colorant 0.6 parts of conductive mica, 0.6 parts of brominated carbon nanotubes, 30 parts of fillers, wherein the additives include leveling agent, defoamer and anti-interference agent, the component ratio is 1:0.3:0.3, and the filler is precipitated barium;

[0070] Its preparation method comprises the following steps:

[0071] S1. Preparation of bromine-added carbon nanotubes: place the carbon nanotubes in a bromine-adding device at 55°C, and make them after adding bromine for 12 hours to obtain bromine-added carbon nanotubes;

[0072] S2. Making masterbatch: pre-mix 0.6 parts of conductive mica, 2 parts of graphite, 0.6 parts of carbon nanotubes, 54 parts of polyester resin, and 36 parts of epoxy resin in a stirring pot, and stir at 25 ° C. Af...

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Abstract

The invention relates to the field of epoxy polyester powder coatings, and discloses a conductive epoxy polyester powder coating which is prepared from the following components in parts by weight: 36-54 parts of polyester resin, 24-36 parts of epoxy resin, 0.5-2 parts of graphite, 1-2 parts of auxiliaries, 1-30 parts of pigment, 0.2-0.6 part of conductive mica, 0.2-0.6 part of bromine-added carbonnanotubes and 1-30 parts of filler. The preparation method comprises the following steps: S1, preparing brominated carbon nanotubes; S2, preparing a master batch; S3, preparing materials; S4, extruding; S5, tabletting; S6, crushing and grinding; S7, particle size adjustment; and S7, quality inspection and filling. The excellent conductive effect of the coating can be achieved by adding a very small amount of bromine-added carbon nanotubes, the product quality is improved, the leveling property of the coating can be guaranteed, the practicability of the conductive epoxy polyester powder coating is enhanced, and the preparation method of the conductive epoxy polyester powder coating is simple in treatment process, high in production efficiency and capable of achieving mass production.

Description

technical field [0001] The invention relates to the field of epoxy polyester powder coating, in particular to a conductive epoxy polyester powder coating. Background technique [0002] Now that 5G is becoming more and more popular in life, the maintenance of 5G base stations is also a big problem. In 5G base stations, small and high-density electronic components are most likely to be damaged by static electricity. Anti-static can be used in manufacturing, transportation, storage, and use. The coating, and the conductive coating in the curtain wall and ceiling can prevent dust from adsorbing to the surface of the coating and keep the surface clean. Coating surface resistance, but its method has the following disadvantages: [0003] 1. The proportion of conductive mica is high, but the conductive effect is not ideal, and the input and output are not proportional; [0004] 2. Conductive mica has a large oil absorption capacity, and the proportion of resin content in the coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D163/00C09D5/03C09D5/24C09D7/61
CPCC09D167/00C09D5/033C09D5/24C08K2201/001C08L63/00C08K9/02C08K3/041
Inventor 凌秀军张金良周国旗周鹏童依依
Owner HUZHOU JIACHENG POWDER COATINGS CO LTD
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