High-heat-resistance epoxy resin electrostatic-spraying powder paint

An epoxy resin and electrostatic spraying technology, applied in powder coatings, fireproof coatings, coatings, etc., can solve the problems of low heat resistance, achieve excellent weather resistance, improve brittleness, and reduce temperature

Inactive Publication Date: 2017-05-31
TIANCHANG JINLING ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its excellent adhesion, corrosion resistance, hardness, flexibility and impact strength, epoxy resin has been widely used in household appliances, vehicles, hardware machinery and other fields. However, due to the aromatic ether group in epoxy resin coating The existence of clusters is extremely sensitive to ultraviolet light, so that its heat resistance is not high, which limits its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of high heat-resistant epoxy resin electrostatic spraying powder coating that the present invention proposes, its raw material comprises by weight: 70 parts of bisphenol A epoxy resin, 5 parts of dicyclopentadiene dioxide, 5 parts of polyarylene sulfide resin, 3 parts of silicone resin, 3 parts of dicyandiamide, 0.2 parts of maleic anhydride, 0.18 parts of 2-mercaptobenzimidazole, 0.05 parts of 2-methylimidazole, 2-butyl-2-ethyl-1 , 0.2 parts of 3-propanediol, 2 parts of talcum powder, 5 parts of fumed white carbon black, 10 parts of precipitated barium sulfate, 2.5 parts of carbon nanotubes, 2 parts of nano-silica, N-phenyl-3-aminopropyl trimethyl 1.5 parts of oxysilane, 0.1 part of leveling agent, 0.15 part of brightening agent, and 0.01 part of defoamer.

Embodiment 2

[0015] A kind of high heat-resistant epoxy resin electrostatic spraying powder coating that the present invention proposes, its raw material comprises by weight: 55 parts of bisphenol A epoxy resins, 20 parts of dicyclopentadiene dioxide, 2 parts of polyarylene sulfide resins, 15 parts of silicone resin, 2 parts of dicyandiamide, 1 part of maleic anhydride, 0.05 parts of 2-mercaptobenzimidazole, 0.2 parts of 2-methylimidazole, 2-butyl-2-ethyl-1 , 0.05 parts of 3-propanediol, 5 parts of talcum powder, 1 part of fumed white carbon black, 18 parts of precipitated barium sulfate, 0.5 parts of carbon nanotubes, 10 parts of nano-silica, N-phenyl-3-aminopropyl trimethyl 0.5 part of oxysilane, 0.8 part of leveling agent, 0.02 part of brightening agent, and 0.1 part of defoamer.

Embodiment 3

[0017] A kind of high heat-resistant epoxy resin electrostatic spray powder coating that the present invention proposes, its raw material comprises by weight: 65 parts of bisphenol A epoxy resins, 10 parts of dicyclopentadiene dioxide, 4.5 parts of polyarylene sulfide resins, 5 parts of silicone resin, 2.7 parts of dicyandiamide, 0.6 parts of maleic anhydride, 0.14 parts of 2-mercaptobenzimidazole, 0.1 part of 2-methylimidazole, 2-butyl-2-ethyl-1 , 0.17 parts of 3-propanediol, 3.1 parts of talcum powder, 4.3 parts of fumed silica, 12 parts of precipitated barium sulfate, 1.6 parts of carbon nanotubes, 5 parts of nano-silica, N-phenyl-3-aminopropyl trimethyl 1.3 parts of oxysilane, 0.5 parts of leveling agent, 0.08 parts of brightening agent, and 0.09 parts of defoaming agent.

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PUM

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Abstract

The invention discloses a high-heat-resistance epoxy resin electrostatic-spraying powder paint which is prepared from a bisphenol A epoxy resin, dicyclopentadiene dioxide, a polyaryl thioether resin, an organic silicon resin, dicyandiamide, maleic anhydride, 2-thiobenzimidazole, 2-methylimidazole, 2-butyl-2-ethyl-1,3-propanediol, talcum powder, fumed silica, precipitation-process barium sulfate, carbon nanotubes, nano silicon dioxide, N-phenyl-3-aminopropyltrimethoxy silane, a leveling agent, a sensitizer and a defoaming agent. The high-heat-resistance epoxy resin electrostatic-spraying powder paint has the advantages of favorable heat resistance, excellent impact resistance and long service life.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high heat-resistant epoxy resin electrostatic spraying powder coating. Background technique [0002] Electrostatic spraying is a spraying method that uses a high-voltage electrostatic electric field to make negatively charged paint particles move in the direction opposite to the electric field, and adsorb the paint particles on the surface of the workpiece. Due to its high utilization rate, it can realize mechanization, automation, and assembly line The advantages of production, strong adhesion, smooth coating surface, small roughness, and little pollution to the environment have gradually replaced the traditional painting process in recent years. Due to its excellent adhesion, corrosion resistance, hardness, flexibility and impact strength, epoxy resin has been widely used in household appliances, vehicles, hardware machinery and other fields. However, due to the aromatic eth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/06C09D5/03C09D5/46C09D7/12
CPCC09D4/06C09D5/03C09D5/033C09D5/18
Inventor 茆文斌
Owner TIANCHANG JINLING ELECTRONICS
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