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Water borne epoxy resin anticorrosive paint and preparation method thereof

A water-based epoxy resin and anti-corrosion coating technology, which is applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc., can solve the problems of high price and poor comprehensive performance of imported products, and achieve good application value, low price and applicable wide range of effects

Inactive Publication Date: 2010-01-27
HUANGGANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a water-based epoxy resin anti-corrosion coating provided in the domestic market, which needs an external curing agent, has poor comprehensive performance, and high prices for imported products, and provides a low-cost, good storage stability, water resistance, and corrosion resistance. Water-based epoxy resin anti-corrosion coating with excellent properties such as good corrosion resistance and heating self-curing

Method used

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  • Water borne epoxy resin anticorrosive paint and preparation method thereof
  • Water borne epoxy resin anticorrosive paint and preparation method thereof
  • Water borne epoxy resin anticorrosive paint and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] The waterborne epoxy resin anticorrosion coating of the present embodiment is made up of each component of following mass percentage:

[0032] Silicone modified water-based epoxy resin dispersion 40%, iron oxide red 15%, anti-rust pigment titanium iron powder 8%, talcum powder 15%, defoamer 0.2%, leveling agent 0.2%, anti-flash rust agent Phosphate mixture 0.4%, deionized water 21.2%. The mass percentage is the percentage of the total mass of the coating taken by weighing.

[0033] Wherein the preparation method of siloxane modified aqueous epoxy resin dispersion liquid, its detailed steps are as follows:

[0034] (1) take by weighing each monomer and initiator of following mass percent: methacrylic acid 24%, methyl methacrylate 38%, styrene 36%, benzoyl peroxide 2%; Described mass percent is accounted for all Take the percentage of total monomer mass;

[0035] (2) In a four-necked flask equipped with agitator, condensing tube, nitrogen conduit, dropping funnel, pre-...

Embodiment 2

[0043] The waterborne epoxy resin anticorrosion coating of the present embodiment is made up of each component of following mass percentage:

[0044]Silicone modified water-based epoxy resin dispersion 48%, iron oxide red 15%, antirust pigment titanium iron powder 10%, talcum powder 15%, defoamer 0.3%, leveling agent 0.3%, anti-flash rust agent Phosphate mix 0.4%, deionized water 11%. The mass percentage is the percentage of the total mass of the coating taken by weighing.

[0045] Wherein the preparation method of siloxane modified aqueous epoxy resin dispersion liquid is the same as embodiment 1.

[0046] According to above-mentioned formula, adopt the preparation method of embodiment 1, make waterborne epoxy resin anticorrosion coating.

[0047] The water-based epoxy anti-corrosion coating obtained in this embodiment is used as an anti-corrosion primer for storage tanks. The coating film dries quickly, is tough and durable, has good adhesion and excellent oil resistance. ...

Embodiment 3

[0050] The waterborne epoxy resin anticorrosion coating of the present embodiment is made up of each component of following mass percentage:

[0051] Siloxane modified water-based epoxy resin dispersion 55%, iron oxide red 10%, anti-rust pigment titanium iron powder 10%, talcum powder 15%, defoamer 0.3%, leveling agent 0.3%, anti-flash rust agent Phosphate mixture 0.4%, deionized water 9%. The mass percentage is the percentage of the total mass of the coating taken by weighing.

[0052] Wherein the preparation method of siloxane modified aqueous epoxy resin dispersion liquid is the same as embodiment 1.

[0053] According to above-mentioned formula, adopt the preparation method of embodiment 1, make waterborne epoxy anticorrosion coating.

[0054] The water-based epoxy resin anticorrosion coating obtained in this embodiment is used for the anticorrosion primer of the bridge deck. The paint film is tough and wear-resistant, has good adhesion, strong water penetration resistan...

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Abstract

The invention discloses a water borne epoxy resin anticorrosive paint and preparation method thereof and solves the contradiction between storage stability of water dispersion and water resistance and corrosion resistance of dispersion film in the prior art. The paint is prepared by mixing oxosilane modified water borne epoxy resin dispersion, iron oxide red, rustproofing pigment, talc powder, defoaming agent, flatting agent, flash rust proofing agent and deionized water in ratio, and the invention is characterized in that: hydrophilic monomer is introduced to epoxy resin molecular chain, so the paint has self-emulsifying characteristic; and oxosilane is applied to modifying of the water borne epoxy resin, so that the paint can be heated and self-solidified. The paint has good storage stability and good construction performance, film can be fast dried and has high rigidity after being dried, the film is bright and smooth, water proof, corrosion resistant, washing resistant, good in comprehensive performance and low in cost. The invention can meet the requirement of anticorrosive paint in the fields of storage tank, bridge and the like.

Description

1. Technical field [0001] The invention belongs to the technical field of epoxy resin coatings, and in particular relates to a water-based epoxy resin anticorrosion coating and its preparation method and application. 2. Background technology [0002] As one of the three general-purpose thermosetting resins, epoxy resin is widely used in the fields of machinery and electronics, aerospace, transportation, construction, etc. due to its excellent process performance, mechanical properties and physical properties. Generally, epoxy resins use a large amount of organic solvents, which increases the cost on the one hand, and causes environmental pollution and endangers human health due to the volatilization of organic solvents. Therefore, the application of solvent-based epoxy resins is becoming more and more popular. Restricted, even banned by developed countries. In order to solve this problem, many researchers are devoting themselves to the study of epoxy resin systems that do n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D163/00C09D7/12C09D5/08C09D163/02
Inventor 张凯黄春保
Owner HUANGGANG NORMAL UNIV
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