Epoxy resin for 50: 50 indoor powdery paint with high leveling grade, and preparation method thereof

A powder coating, epoxy resin technology, applied in powder coatings, epoxy resin coatings, coatings, etc., can solve problems such as insufficient surface leveling effect

Active Publication Date: 2019-11-08
黄山五环科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is to provide a high leveling 50:50 epoxy resin for...

Method used

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  • Epoxy resin for 50: 50 indoor powdery paint with high leveling grade, and preparation method thereof
  • Epoxy resin for 50: 50 indoor powdery paint with high leveling grade, and preparation method thereof
  • Epoxy resin for 50: 50 indoor powdery paint with high leveling grade, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] The 50:50 type epoxy resin for indoor powder coating with high leveling 50:50 used in this embodiment, based on the total amount of raw materials for its preparation, includes the following raw material components in molar content:

[0023]

[0024]

[0025] The preparation method of the 50:50 type indoor powder coating with high leveling 50:50 epoxy resin for indoor powder coating described in this embodiment includes the following steps:

[0026] (1) Add the formula amount of sodium hydroxide solution (60% solid content) into the reaction kettle, raise the temperature to 40°C, add the formula amount of bisphenol A, carry out the heat preservation reaction for 0.5-1.5h, and then add the formula amount of epoxy Chloropropane, keep warm at 80°C for 2-4 hours, test the pH of the solution during the reaction, stop the reaction when the pH is below 9, separate the water phase and epoxy resin phase, and then wash the epoxy resin with water for 4-6 The water quality is ...

Embodiment 2

[0031] The 50:50 type epoxy resin for indoor powder coating with high leveling 50:50 used in this embodiment, based on the total amount of raw materials for its preparation, includes the following raw material components in molar content:

[0032]

[0033]

[0034] The preparation method of the 50:50 type indoor powder coating with high leveling 50:50 epoxy resin for indoor powder coating described in this embodiment includes the following steps:

[0035] (1) Add the formula amount of sodium hydroxide solution (50% solid content) into the reaction kettle, raise the temperature to 45°C, add the formula amount of bisphenol A, carry out the heat preservation reaction for 0.5-1.5h, and then add the formula amount of epoxy Chloropropane, keep warm at 90°C for 2-4 hours, test the pH of the solution during the reaction, stop the reaction when the pH is below 9, separate the water phase and epoxy resin phase, and then wash the epoxy resin with water for 4-6 The water quality is ...

Embodiment 3

[0040] The 50:50 type epoxy resin for indoor powder coating with high leveling 50:50 used in this embodiment, based on the total amount of raw materials for its preparation, includes the following raw material components in molar content:

[0041]

[0042] The preparation method of the 50:50 type indoor powder coating with high leveling 50:50 epoxy resin for indoor powder coating described in this embodiment includes the following steps:

[0043] (1) Add the formula amount of sodium hydroxide solution (50% solid content) into the reaction kettle, raise the temperature to 45°C, add the formula amount of bisphenol A, carry out the heat preservation reaction for 0.5-1.5h, and then add the formula amount of epoxy Chloropropane, keep warm at 90°C for 2-4 hours, test the pH of the solution during the reaction, stop the reaction when the pH is below 9, separate the water phase and epoxy resin phase, and then wash the epoxy resin with water for 4-6 The water quality is one-third of...

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Abstract

The invention specifically relates to epoxy resin for a 50: 50 indoor powdery paint with a high leveling grade and further discloses a preparation method thereof, belonging to the technical field of powdery paints. The epoxy resin for the 50: 50 indoor powdery paint with a high leveling grade is prepared through polymerization of bisphenol A, epichlorohydrin, sodium hydroxide, polyethylene glycoldiglycidyl ether, pentaerythritol dioleate, E-51 epoxy resin, adipic acid, cyclohexane-1,2-dicarboxylic acid diglycidyl ester and N,N-dimethylformamide. The synergistic action among the raw materialsensures that the produced epoxy resin has excellent overall performance such as impact resistance, excellent adhesion, water resistance, etc. The epoxy resin is finally applied to the 50:50 indoor powdery paints and allows a coating with excellent comprehensive performance and a high leveling grade to be obtained.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, in particular to an epoxy resin for high leveling 50:50 indoor powder coatings, and further discloses a preparation method thereof. Background technique [0002] Powder coating is a 100% solid powder that does not contain organic solvents. It is different from oil-based paints and water-based paints. It does not use solvent or water as a dispersion medium when coating, but uses air as a dispersion medium to evenly coat the workpiece. The surface is a new type of environmentally friendly paint that forms a special-purpose coating film after heating. Powder coating has the advantages of no VOC, environmental protection, energy saving, high construction efficiency and wide application range. With its advantages of economy, environmental protection, high efficiency and excellent performance, it is gradually replacing organic solvent-based coatings and has become an important development direc...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/03C08G59/42C08G59/14C08G59/16C08G59/06
CPCC08G59/063C08G59/145C08G59/1472C08G59/4207C09D5/03C09D163/00
Inventor 汪年华罗乐平程殿辉江蓉王永垒
Owner 黄山五环科技有限公司
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