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A kind of one-component normal temperature curing water-based anticorrosion resin and preparation method thereof

An anti-corrosion resin, curing technology at room temperature, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of insufficient cross-linking density, limited corrosion resistance, water whitening resistance, salt spray resistance and heat resistance to be improved, etc. The effect of increasing joint density, improving self-drying at room temperature, and improving the compactness of the coating film

Active Publication Date: 2020-06-16
优美特(北京)环境材料科技股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above method can increase the degree of crosslinking when the resin film is formed by adding a siloxane crosslinking agent, its crosslinking density is not enough, the corrosion resistance is limited, and the water whitening resistance, salt spray resistance and heat resistance all need to be improved.

Method used

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  • A kind of one-component normal temperature curing water-based anticorrosion resin and preparation method thereof
  • A kind of one-component normal temperature curing water-based anticorrosion resin and preparation method thereof
  • A kind of one-component normal temperature curing water-based anticorrosion resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: the preparation of one-component normal temperature curing water-based anticorrosion resin

[0034] (1) Add 335g of linolenic acid to a 1000mL three-neck round bottom flask, and heat to 150°C; add 150g of bisphenol A epoxy resin E-20, and keep it at 150°C for 2 hours; heat up to 220°C, and then add 150g of E-20, stir to dissolve and add 3g of stannous octoate to make it transparent, take a sample every hour to measure the acid value, until the acid value is <10mg KOH / g, the esterification reaction is completed, cool down and add the mixture of n-butanol and propylene glycol methyl ether, n-butanol Alcohol: propylene glycol methyl ether (v / v)=1:1, make it control the solid content of epoxy ester to be 60%, obtain epoxy ester.

[0035] (2) Take 150g of the above-mentioned epoxy ester and put it into a 1000mL three-neck bottle, raise the temperature to 120°C, weigh 40g of styrene, 35g of ethyl acrylate, 15g of acrylic acid, and 4g of dibenzoyl peroxide (BPO) ...

Embodiment 2

[0038] Embodiment 2: the preparation of one-component normal temperature curing water-based anticorrosion resin

[0039] (1) Add 200g of linoleic acid to a 1000mL three-neck round bottom flask, heat it to 140°C, add 190g of bisphenol A epoxy resin E-12, and keep it at 140°C for 2 hours; raise the temperature to 200°C, add the remaining 190g of E-12 -12, Stir to dissolve and add 1.9g of monobutyltin oxide, take a sample every hour to measure the acid value, until the acid value is <10mg KOH / g, the esterification reaction is completed, cool down and add n-butanol and ethylene glycol butyl ether Mixture, n-butanol:ethylene glycol butyl ether (v / v)=2:1, make it control the solid content of epoxy ester to be 55%, obtain epoxy ester.

[0040](2) Take 180g of the above-mentioned epoxy ester and put it into a 1000mL three-neck bottle, heat up to 120°C, weigh 50g of vinyl acetate, 45g of ethyl acrylate, 18g of methacrylic acid, and 5g of dibenzoyl peroxide (BPO) and mix well , and the...

Embodiment 3

[0043] Embodiment 3: the preparation of one-component normal temperature curing water-based anticorrosion resin

[0044] (1) Add 465g of linolenic acid to a 1000mL three-neck round bottom flask, heat it to 160°C, add 167g of bisphenol A epoxy resin E-20, and keep it at 160°C for 2 hours; raise the temperature to 210°C, add the remaining 167g E -20, Stir to dissolve and add 5.3g of dibutyltin, take a sample every hour to measure the acid value, until the acid value is <10mg KOH / g, the esterification reaction is complete, cool down and add the mixture of n-butanol and propylene glycol methyl ether, n-butanol : Propylene glycol methyl ether (v / v)=1.5:1, obtain epoxy ester, make it control epoxy ester solid content to be 65%.

[0045] (2) Take 140g of the above-mentioned epoxy ester and put it into a 1000ml three-neck bottle, heat up to 115°C, weigh 38g of styrene, 35g of butyl acrylate, 12g of methacrylic acid, and 3.5g of dibenzoyl peroxide (BPO) and mix well , and then added d...

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Abstract

The invention discloses one-component room-temperature curing water-based anticorrosive resin and a preparation method thereof, and relates to the technical field of anticorrosive coating. The anticorrosive resin comprises unsaturated fatty acid, epoxy resin, vinyl monomers, acrylic monomers, acrylate monomers, ethyl orthosilicate and perfluorosilane. The preparation method of the resin comprisesthe steps that unsaturated fatty acid and epoxy resin are subjected to an esterifying reaction to generate epoxy ester, the vinyl monomers, the acrylic monomers, the acrylate monomers and initiators are uniformly mixed and then added dropwise to epoxy ester for a reaction, heat preservation is conducted for a certain period of time, then ethyl orthosilicate is added for a reaction, a neutralization agent is adopted for neutralization, perfluorosilane is added, and finally water is added for high-speed dispersion. According to the resin, with ethyl orthosilicate and perfluorosilane as special functional cross-linking agents, the cross-linking agents are not simply self-polymerized, further cross-linking polymerization can be generated between ethyl orthosilicate and perfluorosilane after orbefore polycondensation, and the corrosion resistance, heat resistance, water whitening resistance and neutral salt spray resistance of coating film are improved.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and in particular relates to a one-component normal-temperature curing water-based anti-corrosion resin and a preparation method thereof. Background technique [0002] The research on anti-corrosion paint is mainly based on epoxy resin, and solvent type is more common. Epoxy resin is insoluble in water, but it has good anti-corrosion performance. Therefore, under the general trend of changing oil to water, the preparation of water-based anti-corrosion paint is still based on epoxy resin, mainly two-component anti-corrosion resin is common, but Two-component anti-corrosion paint needs to be configured on the construction site, and has a short potency period, is easy to cure, and is difficult to clean with paint preparation equipment. Therefore, the research on one-component water-based anticorrosive paint is very necessary. [0003] The preparation of one-component epoxy resin in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F290/06C08F212/08C08F220/06C08F218/08C09D151/08C09D7/62C09D5/08
CPCC08F290/064C08K3/36C08K9/06C09D5/08C09D7/62C09D151/08C08F212/08C08F218/08
Inventor 张建森张玲张冬海
Owner 优美特(北京)环境材料科技股份公司
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