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Cationic aqueous epoxy resin grouting material and preparation thereof

A water-based epoxy resin and cationic technology, which is applied in the field of polymer materials, can solve problems such as the application of cationic polymers that have not been reported, and achieve good bonding performance, good stability, and environmental friendliness.

Inactive Publication Date: 2009-01-14
GUANGZHOU CHEM GROUTING CO LTD CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application of cationic polymers in chemical grouting materials has not been reported

Method used

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  • Cationic aqueous epoxy resin grouting material and preparation thereof
  • Cationic aqueous epoxy resin grouting material and preparation thereof
  • Cationic aqueous epoxy resin grouting material and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Preparation of cationic waterborne epoxy resin:

[0049] In a four-neck flask equipped with a stirrer, a reflux condenser, a thermometer and a nitrogen inlet, add 152.00 g (0.776 mol epoxy) of epoxy resin (E-51), 22.8 g cosolvent (10.8 g methacrylic acid Hydroxyethyl ester and 12g ethylene glycol monobutyl ether), 0.52g hydroquinone, nitrogen gas is passed through to remove the air, and the temperature is raised to 60°C to completely dissolve E-51.

[0050] Then 33.85g (0.350mol) of diallylamine was added dropwise, and the temperature was kept between 60-70°C, and the drop was completed within 1 hour. After the dropwise addition, the temperature was raised to 75-80°C, and the reaction was continued for 2.5 hours.

[0051] Then lower the temperature of the reaction system to 60°C, add 0.24g of hydroquinone, add dropwise 44.78g (0.427mol) of diethanolamine, keep the temperature between 60-70°C, drop it within 1 hour, after the dropwise addition, raise the temperature ...

experiment example 2

[0060] (1) Preparation of cationic waterborne epoxy resin:

[0061] In a four-neck flask equipped with a stirrer, a reflux condenser, a thermometer and a nitrogen inlet, add 162.52 g (0.829 mol epoxy) of epoxy resin (E-51), 39.2 g of cosolvent (hydroxyethyl methacrylate Esters), 0.43g of 2,6-di-tert-butyl-p-cresol, nitrogen gas was passed through to remove the air, and the temperature was raised to 60°C to completely dissolve E-51.

[0062] Then 40.21g (0.414mol) of diallylamine was added dropwise, and the temperature was kept between 60-70°C, and the drop was completed within 1 hour. After the dropwise addition, the temperature was raised to 75-80°C, and the reaction was continued for 3.5 hours.

[0063] Then lower the temperature of the reaction system to 60°C, add 0.22g of 2,6-di-tert-butyl-p-cresol, dropwise add 46.52g (0.443mol) of diethanolamine, keep the temperature between 60-70°C, and finish the drop within 1 hour. After the dropwise addition, the temperature was rai...

experiment example 3

[0072] (1) Preparation of cationic waterborne epoxy resin:

[0073] In a four-necked flask equipped with a stirrer, a reflux condenser, a thermometer and a nitrogen inlet, add 144.26 g (0.736 mol epoxy) of epoxy resin (E-51), 28.85 g of cosolvent (15.25 g of methacrylic acid Hydroxyethyl ester and 13.6g n-butanol), 0.21g 2,6-di-tert-butyl-p-cresol, nitrogen gas was passed through to remove the air, and the temperature was raised to 60°C to completely dissolve E-51.

[0074] Then 35.70g (0.368mol) of diallylamine was added dropwise, and the temperature was kept between 60-70°C, and the drop was completed within 1 hour. After the dropwise addition, the temperature was raised to 85-90°C, and the reaction was continued for 2.5 hours.

[0075] Then cool down the reaction system to 60°C, add 0.22g of 2,6-di-tert-butyl-p-cresol, dropwise add 40.57g (0.386mol) of diethanolamine, keep the temperature between 60-70°C, and drop it within 1 hour. After the dropwise addition, the temperat...

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Abstract

The invention discloses a waterborne epoxy resin, and a cation style waterborne epoxy resin grouting material containing the waterborne epoxy resin as well as the preparation method. The cation style waterborne epoxy resin comprises the following components counting according to weight parts: 100 parts of waterborne epoxy resin, 5 parts to 40 parts of main cross linking agent, 10 parts to 20 parts of subsidiary cross linking agent, 0 part to 25 parts of comonomer, 1.68 parts to 6.61 parts of accelerant, 3.7 parts to 14.5 parts of initiator, 0.01 part to 0.15 part of retarder and 0 part to 900 parts of water. The viscosity of the waterborne epoxy resin grouting material prepared through the invention is low, and the stability is good, thus the waterborne epoxy resin grouting material can be applied in the fields of coating materials, adhesives and grouting materials, and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a cationic water-based epoxy resin grouting material and a preparation method thereof. Background technique [0002] Epoxy resin has the characteristics of high adhesion, good electrical insulation, and chemical corrosion resistance. It is widely used in industrial fields such as metal anti-corrosion coatings, waterproof plugging materials in construction projects, grouting materials, and adhesives. Commonly used epoxy resins have high viscosity and are difficult to dissolve in water. To meet the requirement of low viscosity of grouting materials, a large amount of organic solvents need to be used, and organic solvents are often expensive and volatile, which is easy to damage the environment and the health of construction workers. cause harm. In recent years, systems containing no or less volatile organic compounds (VOC) and no harmful air pollutants (HAP) have become the resear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/14C08F283/10
Inventor 李士强张亚峰邝健政徐宇亮
Owner GUANGZHOU CHEM GROUTING CO LTD CAS
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