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A kind of anticorrosion and antimildew water-based epoxy curing agent and preparation method thereof

A water-based epoxy, anti-corrosion and anti-mold technology, applied in anti-corrosion coatings, epoxy resin coatings, anti-fouling/underwater coatings, etc., can solve the problems of general anti-corrosion and anti-mold performance, expensive raw materials, high cost, etc., to reduce later maintenance Cost, improve corrosion resistance, good anti-fouling and anti-mildew performance

Active Publication Date: 2021-12-10
广州惠顺新材料有限公司
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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 an anti-corrosion and mildew-proof water-based epoxy curing agent in order to solve the technical problems that the epoxy coating system composed of the existing water-based epoxy curing agent has general anti-corrosion and mildew-proof performance, and the raw materials are expensive and the cost is high. and its preparation method

Method used

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  • A kind of anticorrosion and antimildew water-based epoxy curing agent and preparation method thereof
  • A kind of anticorrosion and antimildew water-based epoxy curing agent and preparation method thereof
  • A kind of anticorrosion and antimildew water-based epoxy curing agent and preparation method thereof

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Effect test

Embodiment 1

[0027] The present embodiment provides a high corrosion environment-friendly waterborne epoxy curing agent, component mass, and component is a curing agent as follows:

[0028]

[0029] Embodiment, bisphenol A epoxy resin epoxy value 0.4 embodiment, the polyethylene glycol molecular weight of 4,000, mass compound crosslinker-xylylenediamine and isophoronediamine ratio 14 / 3.

[0030] The present embodiment also provides a method of preparing a waterborne epoxy curing agent, antiseptic mildew, comprising the steps of:

[0031] (1) with stirring at room temperature, 30 g of polyethylene glycol melted in a water bath heated to 50 deg.] C, then 10 g of bisphenol A epoxy resin mixed;

[0032] (2) heating the material in the previous step, to be heated up to 85 ℃ dropwise 0.007 g of aluminum chloride ether solution, to heat the reaction system was dissolved, then cooled to room temperature, quenched with 10 g of a methanol, stirred for 30 min;

[0033] (3) the previous step were heated...

Embodiment 2

[0036] The present embodiment provides a high corrosion environment-friendly waterborne epoxy curing agent, component mass, and component is a curing agent as follows:

[0037]

[0038] Embodiment, bisphenol A epoxy resin epoxy value 0.48, the molecular weight of polyethylene glycol 5000, mass-xylylenediamine and isophorone diamine compound ratio of crosslinking agent present embodiment 12 / 5.

[0039] The present embodiment also provides a method of preparing a waterborne epoxy curing agent, antiseptic mildew, comprising the steps of:

[0040] (1) with stirring at room temperature, 25 g of polyethylene glycol was heated to 60 deg.] C water bath melted, then added 20 g of bisphenol A epoxy resin mixed;

[0041] (2) heating the material in the previous step, to be heated up to 95 deg.] C was added dropwise 0.002 g of boron trifluoride ether solution, 8 grams of the reaction was quenched incubation mixture was dissolved to the system, and then cooled to room temperature, was added ...

Embodiment 3

[0045] The present embodiment provides a high corrosion environment-friendly waterborne epoxy curing agent, component mass, and component is a curing agent as follows:

[0046]

[0047]

[0048] In this embodiment, the hydrogenated epoxy value of 0.52 epoxy resins, polyethylene glycol molecular weight of 6000, the mass ratio of m-xylylenediamine and isophorone diamine compound crosslinker was 5 / 3.

[0049] The present embodiment also provides a method of preparing a waterborne epoxy curing agent, antiseptic mildew, comprising the steps of:

[0050] (1) with stirring at room temperature, 36 g of polyethylene glycol was heated to 70 deg.] C water bath melted, 18 g of hydrogenated epoxy resin was then added uniformly mixed;

[0051] (2) heating the material in the previous step, to be heated up to 100 deg.] C was added dropwise 0.004 g of aluminum chloride ether solution, to heat the reaction system was dissolved, then cooled to room temperature, quenched with 5 g of a methanol...

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Abstract

The invention discloses an anti-corrosion and mildew-proof water-based epoxy curing agent and a preparation method thereof. The components of the water-based epoxy curing agent are calculated by mass percentage: polyethylene glycol 25-36%, epoxy resin 10- 20%, catalyst 0.002-0.007%, quencher 5%-10%, compound cross-linking agent 30-36%, active diluent 5-9%, solvent 3.5-6%, and fungicide 0.05-0.2%, all The composite crosslinking agent includes m-xylylenediamine and isophoronediamine in a mass ratio of 5 / 3-14 / 3. The water-based epoxy curing agent provided by the invention can effectively improve the corrosion resistance and mildew resistance of the paint, and the cost of raw materials is not high, which greatly reduces the later maintenance cost of the paint.

Description

Technical field [0001] The present invention is in the field of water-based paints, and more particularly, to a mold corrosion aqueous epoxy curing agent and preparation method thereof. Background technique [0002] The aqueous epoxy resin with the curing agent use is widely used as a coating. Epoxy coating systems generally constitute a film-forming substance, structural characteristics and content of the aqueous solvent from an aqueous epoxy curing agent with the aqueous epoxy resin epoxy curing agent, the coating film properties of the coating and total volatile organic compounds (VOC) It plays a key role. Type epoxy resin curing agent is divided into ionic and non-ionic. Ion type curing agent and a tertiary amine is employed in a manner to form an aqueous organic acid in a resin based system, it has been documented for organic pigments and curing agent, filler dispersion stability, anti-corrosion coating film, flash rust inhibition negative effects; nonionic type curing agent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D5/08C09D5/16C08G59/50
CPCC09D163/00C09D5/08C09D5/1687C09D5/14C08G59/5033C08G59/5026C08L2205/03C08L63/00C08L71/02C08K5/47
Inventor 何志威倪青青
Owner 广州惠顺新材料有限公司
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