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Preparation method of water-soluble epoxy resin

An epoxy resin, water-soluble technology, used in anti-corrosion coatings, coatings, etc., can solve problems such as peeling, weak adhesion, and poor gloss.

Inactive Publication Date: 2013-03-06
LIANYUNGANG SIFANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many kinds of dispersants, and the research on the application of water-soluble dispersants in the production of anti-corrosion coatings has also been reported. Paint peeling, poor gloss, weak opalescence

Method used

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Examples

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Embodiment Construction

[0005] formula. Raw material formula: epoxy resin, maleic anhydride, linolenic acid, acetone, butanol, ethylene glycol monobutyl ether, multifunctional amine neutralizer, water-based binder.

[0006] preparation. Add epoxy resin, maleic anhydride, linolenic acid, acetone and butanol into the reaction kettle, raise the temperature to 100-200°C, feed nitrogen, then raise the temperature to 200-300°C, and perform esterification for 90 minutes . When the acid value reaches 10-100mgKOH / g and the viscosity reaches 30-90s, cool down to 50-150°C, then add acetone, butanol, ethylene glycol monobutyl ether, and binder, stir evenly, and neutralize with multifunctional amine The pH value of the agent is adjusted to 4-10, filtered and packaged.

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PUM

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Abstract

The invention provides a preparation method of a water-soluble epoxy resin. The water-soluble epoxy resin is prepared from the following raw materials: epoxy resin, maleic anhydride, linoleic acid, acetone, butanol, ethylene glycol monobutyl ether, multifunctional amine neutralizer and water-based binder. The method comprises the following steps: heating the raw materials for esterification in the absence of air for 90 minutes, cooling, regulating the pH value, and filtering.

Description

technical field [0001] The present invention relates to a preparation method of a dispersant, more specifically a preparation method of a water-soluble epoxy resin. Background technique [0002] There are many kinds of dispersants, and the research on the application of water-soluble dispersants in the production of anti-corrosion coatings has also been reported. Peeling paint, poor gloss, weak opalescence. Contents of the invention [0003] The purpose of the invention is to overcome the shortcoming of prior art, provide a kind of new water-soluble epoxy resin formula and new processing technology. The anti-corrosion paint made of the water-soluble epoxy resin dispersant produced by the method is not only thick and not easy to precipitate, but also has strong adhesion and good gloss. [0004] The present invention is realized through the following technical solutions: raw material formula: epoxy resin, maleic anhydride, linolenic acid, acetone, butanol, ethylene glycol...

Claims

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Application Information

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IPC IPC(8): C08G59/58C09D7/12C09D5/08
Inventor 张修成
Owner LIANYUNGANG SIFANG CHEM
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