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Aqueous organic salt modified epoxy ester resin, and preparation method and application thereof

A technology of epoxy ester resin and epoxy resin, applied in the direction of epoxy resin coating, coating, anti-corrosion coating, etc., can solve the problems of poor salt spray resistance of coating film, difficult process control, easy gelation of resin, etc. To achieve the effect of excellent water resistance, not easy to hydrolysis fracture, and improved hydrolysis resistance

Inactive Publication Date: 2013-10-23
CHANGSHA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resin also hydrolyzes and breaks the ester bond in an alkaline environment, and the oil and water are separated during storage. The coating film prepared with this resin has poor salt spray resistance.
[0005] CN102391439A disclosed a preparation method of epoxy ester modified water-based alkyd resin on March 28, 2012. The method first prepares epoxy ester modified alkyd resin, and then mixes it with 2-acrylamide-2-methylpropane Addition reaction of sulfonic acid under the action of initiator to prepare water-soluble epoxy ester modified alkyd resin, the process of this method is difficult to control, and the resin is easy to gel

Method used

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  • Aqueous organic salt modified epoxy ester resin, and preparation method and application thereof
  • Aqueous organic salt modified epoxy ester resin, and preparation method and application thereof
  • Aqueous organic salt modified epoxy ester resin, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The water-based organic salt modified epoxy ester resin of the present embodiment is made from the component raw materials of following quality: E-20 epoxy resin 71.7g, tall oil fatty acid 334g, sodium sulfonate isophthalate 33g, neopentyl 126g of diol, 57.4g of trimethylolpropane, 178g of isophthalic acid, 28.6g of trimellitic anhydride, 0.75g of n-butylstannoic acid, 171g of ethylene glycol butyl ether, and 4g of triethylamine.

[0037] The preparation method comprises the following steps:

[0038] (1) Weigh raw materials: E-20 epoxy resin 71.7g, tall oil fatty acid 334g, sodium sulfonate isophthalate 33g, neopentyl glycol 126g, trimethylolpropane 57.4g, isophthalic acid 178g , trimellitic anhydride 28.6g, n-butyl stannic acid 0.75g, ethylene glycol butyl ether 171g, triethylamine 4g;

[0039] (2) Preparation of organic sulfonate esterification product: Add 33g of sodium sulfonate isophthalate, 99g of neopentyl glycol, and 0.25g of n-butylstannoic acid into a four-ne...

Embodiment 2

[0045] The water-based organic salt modified epoxy ester resin of the present embodiment is made from the component raw materials of following each quality: E-12 epoxy resin 77g, linoleic acid 264g, sodium sulfonate isophthalate 33g, neopentyl dicarboxylate Alcohol 132g, trimethylolpropane 78g, isophthalic acid 204g, trimellitic anhydride 18g, n-butylstannoic acid 0.75g, ethylene glycol butyl ether 177g, N,N-dimethylethanolamine 3g.

[0046] The preparation method comprises the following steps:

[0047] (1) Weigh raw materials: E-12 epoxy resin 77g, linoleic acid 264g, sodium sulfonate isophthalate 33g, neopentyl glycol 132g, trimethylolpropane 78g, isophthalic acid 204g, trimellitic anhydride 18g , 0.75g of n-butyl stannoic acid, 177g of ethylene glycol butyl ether, 3g of N,N-dimethylethanolamine;

[0048] (2) Preparation of organic sulfonate esterification product: Add 33g of sodium sulfonate isophthalate, 99g of neopentyl glycol, and 0.25g of n-butyl stannic acid into the ...

Embodiment 3

[0054] The water-based organic salt modified epoxy ester resin of the present embodiment is made from the component raw materials of following each quality: E-06 epoxy resin 71g, soybean oil fatty acid 296g, sodium sulfonate isophthalate 31g, neopentyl glycol 124g, trimethylolpropane 93g, phthalic anhydride 184g, trimellitic anhydride 27g, n-butylstannoic acid 0.75g, ethylene glycol butyl ether 180g, ammonia water 3.1g.

[0055] The preparation method comprises the following steps:

[0056] (1) Weigh raw materials: E-06 epoxy resin 71g, soybean oil fatty acid 296g, sodium sulfonate isophthalate 31g, neopentyl glycol 124g, trimethylolpropane 93g, phthalic anhydride 184g, trimellitic anhydride 27g , n-butyl stannoic acid 0.75g, ethylene glycol butyl ether 180g, ammonia water 3.1g;

[0057] (2) Preparation of organic acid esterification product: Add 31g of sodium sulfonate isophthalate, 93g of neopentyl glycol, and 0.25g of n-butylstannoic acid into the reaction kettle, stir and...

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Abstract

The invention relates to an aqueous organic salt modified epoxy ester resin, and a preparation method and an application thereof. The modified epoxy ester resin is prepared by using the following raw materials, by mass, 7-9% of an epoxy resin, 26-34% of vegetable oil fatty acid, 3-5% of organic sulfonate, 9-16% of diol, 5-10% of polyol, 17-21% of diacid, 1.5-3.0% of polyacid, 0.06-0.08% of an esterification catalyst, 16-18% of a cosolvent and 0.3-0.5% of amine or ammonia. The invention also relates to the preparation method of the aqueous organic salt modified epoxy ester resin, and the application of the aqueous organic salt modified epoxy ester resin. The aqueous organic salt modified epoxy ester resin has a good water soluble stability and a good salt spray resistance.

Description

technical field [0001] The invention relates to a water-based organic salt modified epoxy ester resin and a preparation method and application thereof. Background technique [0002] Waterborne epoxy ester coatings have excellent application value in the field of metal antirust due to their excellent antirust performance and environmental protection. The water-based epoxy ester resin usually adopts the salt-forming method, that is, the epoxy ester resin with carboxyl group is first synthesized, and then neutralized with alkali to form a salt to achieve the purpose of water solubility. [0003] CN101851396A disclosed a water-based epoxy ester resin composition and a preparation method thereof on October 6, 2010. It uses vinyl monomers to modify the epoxy ester resin, neutralizes it with ammonia, and then disperses it with water to obtain a water-based epoxy ester resin. . This method has more residual vinyl monomers, heavy odor, and the acid value of the resin is higher, and...

Claims

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Application Information

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IPC IPC(8): C08G59/14C09D163/00C09D5/08
Inventor 李荣喜刘迎新杨宁
Owner CHANGSHA UNIVERSITY
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