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Modified-2-methylimidazole-containing electrostatic-spraying powder paint

A methyl imidazole and powder coating technology, applied in the coating field, can solve the problem of low heat resistance and the like, achieve the effects of low cost, high brittleness improvement, and lower curing 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

[0016] A kind of electrostatic spraying powder coating that contains modified 2-methylimidazole that the present invention proposes, its raw material comprises by weight: 80 parts of hydrogenated bisphenol A epoxy resins, 20 parts of novolac epoxy resins, dicyclopentadiene dioxide 30 parts, polyarylene sulfide resin 5 parts, nylon 20 parts, dicyandiamide 2 parts, phthalic anhydride 0.8 parts, modified 2-methylimidazole 0.05 parts, aluminum hydroxide 5 parts, fumed white carbon black 1 10 parts of barium sulfate by precipitation method, 1 part of carbon nanotube, 10 parts of nano silicon dioxide, 1 part of magnesium hydroxide, 5 parts of nano cerium oxide, 0.5 part of fine wax powder, N-phenyl-3-aminopropyl 2.5 parts of trimethoxysilane, 0.1 part of leveling agent, and 0.1 part of defoamer;

[0017] Wherein, the modified 2-methylimidazole is prepared according to the following process: add 1,2,4,5-pyrenetetracarboxylic acid and lanthanum nitrate into water and stir evenly, then...

Embodiment 2

[0019] A kind of electrostatic spraying powder coating that contains modified 2-methylimidazole that the present invention proposes, its raw material comprises by weight: 50 parts of hydrogenated bisphenol A epoxy resins, 50 parts of novolac epoxy resins, dicyclopentadiene dioxide 10 parts, 10 parts of polyarylene sulfide resin, 5 parts of nylon, 4 parts of dicyandiamide, 0.1 part of phthalic anhydride, 0.15 parts of modified 2-methylimidazole, 2 parts of aluminum hydroxide, 5 parts of fumed white carbon black 2 parts, 2 parts of precipitated barium sulfate, 3 parts of carbon nanotubes, 2 parts of nano-silicon dioxide, 5 parts of magnesium hydroxide, 2 parts of nano-cerium dioxide, 1.5 parts of fine wax powder, N-phenyl-3-aminopropyl 1 part of trimethoxysilane, 0.5 part of leveling agent, and 0.01 part of defoamer;

[0020] Wherein, the modified 2-methylimidazole is prepared according to the following process: add 1,2,4,5-pyrenetetracarboxylic acid and lanthanum nitrate into w...

Embodiment 3

[0022] A kind of electrostatic spraying powder coating that contains modified 2-methylimidazole that the present invention proposes, its raw material comprises by weight: 65 parts of hydrogenated bisphenol A epoxy resins, 28 parts of novolac epoxy resins, dicyclopentadiene dioxide 26 parts, polyarylene sulfide resin 7 parts, nylon 17 parts, dicyandiamide 2.5 parts, phthalic anhydride 0.7 parts, modified 2-methylimidazole 0.08 parts, aluminum hydroxide 4.3 parts, fumed silica 2 8 parts of barium sulfate by precipitation method, 1.6 parts of carbon nanotubes, 9 parts of nano silicon dioxide, 1.9 parts of magnesium hydroxide, 4.3 parts of nano cerium dioxide, 0.6 parts of fine wax powder, N-phenyl-3-aminopropane 2.1 parts of trimethoxysilane, 0.19 parts of leveling agent, and 0.08 parts of defoamer;

[0023] Wherein, the modified 2-methylimidazole is prepared according to the following process: 120 parts by weight of 1,2,4,5-pyrene tetracarboxylic acid and 3 parts of lanthanum ni...

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Abstract

The invention discloses a modified-2-methylimidazole-containing electrostatic-spraying powder paint which is prepared from a hydrogenated bisphenol A epoxy resin, a novolac epoxy resin, uranium dioxide dicyclopentadiene, a polyaryl thioether resin, nylon, dicyandiamide, phthalic anhydride, modified 2-methylimidazole, aluminum hydroxide, fumed silica, precipitation-process barium sulfate, carbon nanotubes, nano silicon dioxide, magnesium hydroxide, nano cerium oxide, micro wax powder, N-phenyl-3-aminopropyltrimethoxy silane, a leveling agent and a defoaming agent. The modified-2-methylimidazole-containing electrostatic-spraying powder paint has the advantages of favorable heat resistance, excellent impact resistance, low curing temperature and long service life.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an electrostatic spraying powder coating containing modified 2-methylimidazole. 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 aroma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/04C09D181/02C09D177/00C09D5/03C09D5/18C09D7/12C08G59/58
CPCC09D163/00C08G59/58C08K2201/011C08K2201/014C08L2201/02C08L2201/08C08L2205/02C08L2205/035C09D5/033C09D5/18C09D163/04C08L63/04C08L81/02C08L77/00C08K13/02C08K2003/2227C08K3/36C08K2003/3045C08K7/24C08K2003/2224C08K2003/2213
Inventor 茆文斌
Owner TIANCHANG JINLING ELECTRONICS
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