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Epoxy resin aqueous dispersion and preparation method thereof

A technology of epoxy resin and phenolic epoxy resin, used in epoxy resin coatings, coatings, latex paints, etc., can solve the problems of uneven quality, poor stability of high molecular weight epoxy emulsion, insufficient corrosion resistance, etc. The effect of acidity and alkalinity

Inactive Publication Date: 2018-02-02
徐下兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are various types of water-based epoxy resins on the market, and the good and bad are mixed. Compared with the well-developed oil-based epoxy resins, the common problems are: insufficient anti-corrosion performance, and poor stability of high-molecular-weight epoxy emulsions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、2、3

[0018] The preparation method of embodiment 1,2,3 comprises the following steps:

[0019] (a) Weigh novolac epoxy resin into the reaction kettle, add diluent, stir at 150°C for 30min, and the stirring speed is 300rpm;

[0020] (b) Add additives, organic solvents, and water to the novolak epoxy resin, stir at room temperature for 2-2.5 hours, and the stirring speed is 400rpm.

Embodiment 1

[0022] A kind of epoxy resin aqueous dispersion is made up of following weight component raw material:

[0023] Novolac epoxy resin 50Kg;

[0024] Thinner 40 Kg;

[0025] Inhibitor 2 Kg;

[0026] Emulsifier 1 Kg;

[0027] Water 100 Kg.

Embodiment 2

[0029] A kind of epoxy resin aqueous dispersion is made up of following weight component raw material:

[0030] Novolac epoxy resin 60Kg;

[0031] Thinner 50 Kg;

[0032] Inhibitor 3Kg;

[0033] Emulsifier 2Kg;

[0034] Water 85 Kg.

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PUM

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Abstract

The invention relates to the field of polymer materials, and discloses a water dispersion of epoxy resin and a preparation method thereof. The water dispersion of epoxy resin in the invention is prepared from the following raw materials by weight: novolac epoxy resin 50-60 3-5 parts of additives; 30-50 parts of diluent; 70-100 parts of water. It has better storage stability, corrosion resistance and mechanical properties.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an aqueous epoxy resin dispersion and a preparation method thereof. Background technique [0002] At present, there are various types of water-based epoxy resins on the market, and the good and the bad are mixed. Compared with the well-developed oil-based epoxy resins, the common problems are: insufficient anti-corrosion performance, and poor stability of high molecular weight epoxy emulsions. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an aqueous epoxy resin dispersion with better storage stability, corrosion resistance and mechanical properties. [0004] The technical problem to be solved by the present invention is realized through the following technical solutions: [0005] A kind of epoxy resin aqueous dispersion is made up of following weight component raw material: [0006] 50-60 parts of novolak epoxy re...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D5/02
CPCC09D163/00C09D5/022C09D5/08C09D5/18
Inventor 徐下兵
Owner 徐下兵
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