Process for preparing water soluble epoxy resin grouting agent

A technology for water-based epoxy resin and grouting material, which is applied in the field of preparation of new water-based epoxy resin grouting materials, can solve the problems of poor epoxy curing, and no water-based epoxy resin grouting material has been developed, and is beneficial to environmental protection and durable. The effect of good performance and cost reduction

Inactive Publication Date: 2005-03-16
GUANGZHOU CHEM GROUTING CO LTD CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the shortcomings of strong hydrophobicity, the modification method is mainly to add a hydrophilic agent to the slurry to increase the hydrophilicity of the slurry, but the problem of poor curing of epoxy in a humid environment and in water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] Example 1:

[0050] 1. Synthesis of water-based epoxy resin

[0051]Add 93g itaconic acid and 24g n-butanol into a four-neck flask equipped with nitrogen, stirring and temperature control device, heat to 90℃, add 0.88g benzyltriethylammonium chloride and 0.22g p-hydroxybenzene Methyl ether, add 147g epoxy resin E-44 dropwise, keep the temperature between 90-94°C, drop it in 2h, then control the temperature at 100-110°C, and react for 3h.

[0052] Cool down to 50°C, add 60g ammonia water for neutralization, fully stir for 1.5h, then add 101.6g deionized water, and then vigorously stir for 1h to prepare an aqueous epoxy resin solution with a concentration of 60%.

[0053] 2. Preparation of water-based epoxy resin grouting material

[0054] Take 100g of the aqueous epoxy resin solution prepared in the above steps, add 39g of water, 5g of N,N'-methylenebisacrylamide, 4.5g of ammonium persulfate, 4.5g of triethanolamine, 4.5g of methacryloxyethyl three 11g of methyl ammonium chl...

Example Embodiment

[0056] Example 2:

[0057] 1. Synthesis of water-based epoxy resin

[0058] Add 89g itaconic acid and 32g ethylene glycol monobutyl ether into a four-neck flask equipped with nitrogen, stirring and temperature control device, heat to 90°C, add 0.8g tetraethylammonium chloride and 0.21g p-benzene Diphenol, add 127g epoxy resin E-51 dropwise, keep the temperature between 92-96°C and finish dropping within 1.5h, then control the temperature at 100-110°C, and react for 3h.

[0059] The temperature was lowered to 40° C., 52 g of ammonia water was added for neutralization, and the mixture was fully stirred for 1.5 hours, and then 81.8 g of deionized water was added, followed by vigorous stirring for 1 hour to prepare an aqueous epoxy resin solution with a concentration of 60%.

[0060] 2. Preparation of water-based epoxy resin grouting material

[0061] Take 100g of the aqueous epoxy resin solution prepared in the above steps, add 85g of water, 5g of N,N'-methylenebisacrylamide, 5g of p...

Example Embodiment

[0063] Example 3:

[0064] 1. Synthesis of water-based epoxy resin

[0065] In a four-neck flask equipped with nitrogen, stirring and temperature control device, add 93g itaconic acid and 22g cyclohexanone, heat to 90℃, add 0.86g tetraethylammonium chloride and 0.24g p-butyl phthalate Phenol, add 127g epoxy resin E-51 dropwise, keep the temperature between 90-96°C, drop it in 1.5h, then control the temperature at 100-110°C, and then react for 4h.

[0066] Cool down to 40°C, add 70g of dimethylethanolamine for neutralization, fully stir for 1.5h, then add 171.3g of deionized water, and then vigorously stir for 1h to prepare an aqueous epoxy resin solution with a concentration of 60%.

[0067] 2. Preparation of water-based epoxy resin slurry

[0068] Take 100g of the aqueous epoxy resin solution prepared in the above steps, add 119.7g of water, 4.8g of N,N'-methylenebisacrylamide, 4.5g of ammonium persulfate, 4.5g of triethanolamine, and methacryloxy ethyl 11g of methyl trimethyl am...

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Abstract

The invention relates to a process for preparing water soluble epoxy resin grouting agent which consists of, introducing carboxyl radicals onto the molecular matrix of the epoxy resin, preparing water-based epoxy resin by neutralizing with neutralization agent, introducing double bonds to both ends of the molecular chain, employing water-soluble redox initiation system to produce water non-soluble gel through radical polymerization reaction. The invention can be applied to realize epoxide aquosity.

Description

technical field [0001] The invention relates to a preparation method of a novel water-based epoxy resin grouting material. Background technique [0002] Organic polymer grouting materials developed rapidly in the 1960s, and a series of grouting materials with different properties appeared. Most of the polymer chemical grout materials currently used have a certain degree of toxicity, which is easy to pollute the environment and endanger human health. Research and development of new pollution-free and pollution-free green grout materials is an inevitable trend in the development of chemical grout materials. [0003] Epoxy resin grout has the advantages of high strength, strong adhesion, and good chemical resistance, and is the most commonly used grout for consolidation grouting. However, the main defects of the grout as a grouting material are its high viscosity, low groutability, strong hydrophobicity, and poor adhesion to wet cracks. In addition, most of the curing agents a...

Claims

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Application Information

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IPC IPC(8): C08K5/17C08L63/02
Inventor 石红菊张亚峰葛家良申景强
Owner GUANGZHOU CHEM GROUTING CO LTD CAS
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