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High-temperature-resistant anti-corrosion water-based coating and preparation method thereof

A water-based paint and anti-corrosion technology, applied in the field of paint, can solve the problem that solvent-based paint is not environmentally friendly, and achieve the effects of not easy to break, improve temperature resistance, and improve mechanical strength

Inactive Publication Date: 2021-07-23
东莞大宝化工制品有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the purposes of the present invention is to provide a high-temperature-resistant and anti-corrosion water-based coating for the deficiencies of the prior art, which solves the problem that the existing solvent-based coatings are not environmentally friendly, and improves the performance of high-temperature resistance and anti-corrosion

Method used

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  • High-temperature-resistant anti-corrosion water-based coating and preparation method thereof
  • High-temperature-resistant anti-corrosion water-based coating and preparation method thereof
  • High-temperature-resistant anti-corrosion water-based coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A high-temperature-resistant and anti-corrosion water-based paint, comprising the following raw materials in parts by weight:

[0041]

[0042] The composite anticorrosion pigment is a hydroxyl-terminated hyperbranched poly(amine-ester) modified graphene oxide / nano aluminum phosphate composite anticorrosion pigment.

[0043] In the present embodiment, the preparation method of the epoxy-modified silicon boron resin emulsion comprises the following steps:

[0044] S1. Mix 23 parts of n-butanol and 13 parts of cyclohexanone, add 75 parts of cyclopropane, and stir for 18 minutes at 40°C at a speed of 250 rpm / min to obtain a solution mixture;

[0045] S2. Add 70 parts of boric acid-modified silicone resin emulsion to 40 parts of epoxy resin, and stir at a speed of 225 rpm / min for 30 minutes in an oil bath at 60°C to obtain a mixed resin emulsion;

[0046] S3. Add the solution mixture obtained in S1 to the mixed resin emulsion obtained in S2, stir and react at a speed of 4...

Embodiment 2

[0061] A high-temperature-resistant and anti-corrosion water-based paint, comprising the following raw materials in parts by weight:

[0062]

[0063] The composite anticorrosion pigment is a hydroxyl-terminated hyperbranched poly(amine-ester) modified graphene oxide / nano aluminum phosphate composite anticorrosion pigment.

[0064] In the present embodiment, the preparation method of the epoxy-modified silicon boron resin emulsion comprises the following steps:

[0065] S1. Mix 15 parts of n-butanol and 10 parts of cyclohexanone, add 50 parts of cyclopropane, and stir at 35°C for 15 minutes at a speed of 200 rpm / min to obtain a solution mixture;

[0066] S2. Add 30 parts of 50 parts of boric acid-modified silicone resin emulsion to epoxy resin, and stir for 25 minutes at a speed of 200 rpm / min in an oil bath at 55°C to obtain a mixed resin emulsion;

[0067] S3. Add the solution mixture obtained in S1 to the mixed resin emulsion obtained in S2, stir and react at a speed of...

Embodiment 3

[0082] A high-temperature-resistant and anti-corrosion water-based paint, comprising the following raw materials in parts by weight:

[0083]

[0084] The composite anticorrosion pigment is a hydroxyl-terminated hyperbranched poly(amine-ester) modified graphene oxide / nano aluminum phosphate composite anticorrosion pigment.

[0085] In the present embodiment, the preparation method of the epoxy-modified silicon boron resin emulsion comprises the following steps:

[0086] S1. Mix 30 parts of n-butanol and 15 parts of cyclohexanone, add 100 parts of cyclopropane, and stir at 45°C for 20 minutes at a speed of 300 rpm / min to obtain a solution mixture;

[0087] S2. Add 90 parts of boric acid-modified silicone resin emulsion to 50 parts of epoxy resin, and stir at 250 rpm / min for 35 minutes in an oil bath at 65°C to obtain a mixed resin emulsion;

[0088] S3. Add the solution mixture obtained in S1 to the mixed resin emulsion obtained in S2, stir and react at a speed of 450 rpm / m...

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Abstract

The invention relates to the technical field of coatings, in particular to a high-temperature-resistant anti-corrosion water-based coating and a preparation method thereof. The water-based coating is prepared from 70-80 parts of epoxy modified silicon-boron resin emulsion, 40-60 parts of vinyl modified epoxy ester resin, 1-5 parts of composite anti-corrosion pigment, 6-10 parts of cross-linking agent, 1-5 parts of dispersing agent, 2-4 parts of wetting agent, 1-2 parts of defoaming agent and 100-130 parts of deionized water. The composite anti-corrosion pigment is a hydroxyl-terminated hyperbranched poly (amine-ester) modified graphene oxide / nano aluminum phosphate composite anticorrosive pigment. The water-based coating has excellent high-temperature-resistant and anti-corrosion effects and is high in adhesive force and hardness, and meanwhile the preparation process is easy to operate and low in cost.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-temperature-resistant and anti-corrosion water-based coating and a preparation method thereof. Background technique [0002] Ships, petroleum cracking equipment, containers, road bridges, steel structures, high-temperature furnaces, high-temperature steam pipelines, etc. all need high-temperature resistant and anti-corrosion coatings. There are many types of high-temperature-resistant and anti-corrosion coatings, which are mainly divided into two categories: inorganic coatings and organic coatings. Among them, although inorganic coatings are environmentally friendly, their construction and substrate pretreatment requirements are high, which limits their application to a certain extent; organic coatings mainly include fluororesin coatings, heterocyclic polymer coatings and silicone coatings, etc., which have excellent high temperature resistance. and anti-corrosion propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/14C09D163/00C09D5/08C09D7/63C08G77/56
CPCC09D183/14C09D5/084C09D5/18C08G77/56C08K2003/327C08K2201/011C08L63/00C08K9/08C08K3/042C08K3/32C08K5/0091
Inventor 张珈铭
Owner 东莞大宝化工制品有限公司
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