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A kind of epoxy grouting material for water environment and preparation method thereof

A technology of epoxy grouting and water environment, which is applied in the direction of epoxy resin glue, adhesive type, adhesive additive, etc., can solve the problem of incomplete curing of grouting colloid, failure of plugging, affecting the health of operators, and curing shrinkage low-grade problems, to achieve the effect of low curing shrinkage, low toxicity and excellent performance

Active Publication Date: 2018-05-15
KESHUN WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention aims at the deficiencies of the prior art, to provide a kind of water environment epoxy grouting material, the slurry has the viscosity and wetting performance that meet the pouring requirements, the curing shrinkage rate is low, the toxicity is low, the single component and the construction process are simple, It is not only suitable for the general dry environment, but also suitable for the environment with water. It solves the problem that the grouting material is not firmly bonded to the grouting crack in the actual application, and it is washed away by water to cause water leakage. The two-component grouting material is not fully cured due to the problem of the ratio of the grouting colloid, and the plugging cannot be achieved, and the use of a lot of acetone and furfural diluents affects the health of the operator.

Method used

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  • A kind of epoxy grouting material for water environment and preparation method thereof
  • A kind of epoxy grouting material for water environment and preparation method thereof
  • A kind of epoxy grouting material for water environment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of water environment epoxy grouting material, is made up of aldehyde and ketone-terminated polyether amine, hydrophobic modifier, liquid epoxy resin of bisphenol A type, epoxy-based reactive diluent and conditioning agent, and its formula is as follows Table 1.

[0020] Table 1

[0021]

[0022] The preparation method of polyetheramine-01 end-capped by aldehydes and ketones in Table 1 is as follows: in 15% xylene, 50% polyetheramine D-230, 17% methyl ethyl ketone, 17% n-butyl Aldehydes, 1% benzoic acid, stirred and mixed into a closed dispersion tank, refluxed at 130°C for 5 hours, then distilled off excess ketones, aldehydes capping agents and organic solvents under reduced pressure to obtain aldehydes and ketones capped The final polyetheramine-01 product is finally cooled to below 60°C, filtered and sealed for packaging.

[0023] The production process of the water environment epoxy grout composed of the end-capped polyetheramine-01, magnesium oxysulfate ...

Embodiment 2

[0031] A kind of water environment epoxy grouting material, its formula composition is shown in Table 3.

[0032] table 3

[0033]

[0034] The preparation method of polyetheramine-02 end-capped by aldehydes and ketones in Table 3 is as follows: in 10% butyl ester, 60% polyetheramine D-400, 17.5% acetone, 12% n-propanal , 0.5% acetic acid, stirred and mixed into a closed dispersion tank, refluxed at 120°C for 3 hours, distilled off excess ketones, aldehydes capping agents and organic solvents under reduced pressure to obtain aldehydes and ketones capped The polyetheramine-02 product, finally cooled to below 60°C, filtered and sealed for packaging.

[0035] The production process of the water environment epoxy grout composed of the end-capped polyetheramine-02, phenolic hydroxyl-containing organoalkoxysilane, E-44, 1,4-butanediol diglycidyl ether, and sodium p-toluenesulfonate is simple , just simply stir to disperse and pack evenly. During the construction process, the m...

Embodiment 3

[0040] A kind of water environment epoxy grouting material, its formula composition is shown in Table 5.

[0041] table 5

[0042]

[0043]

[0044] The preparation method of polyetheramine-03 end-capped by aldehydes and ketones in Table 5 is as follows: in 10% propylene glycol methyl ether acetate, 65.5% polyetheramine T-5000, 12% benzyl Ketones, 12% benzaldehyde, 0.5% p-toluenesulfonic acid, stirred and mixed into the closed dispersion tank, refluxed at 100°C for 5 hours, and the excess ketones and aldehydes end-capping agents were distilled off under reduced pressure and an organic solvent to obtain the polyetheramine product-03 after aldehyde and ketone end capping, and finally lower the temperature to below 60°C, filter and seal the package.

[0045] The production process of the water environment epoxy grout composed of the end-capped polyetheramine-03 and trihydroxyphenoxysilane glycidyl ether, E20, E51, phenyl glycidyl ether, and sodium p-toluenesulfonate is sim...

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Abstract

The invention discloses an epoxy grouting material for an water environment. The grouting material is composed of the following components in percentages by weight: 40 to 56% of aldehyde and ketone terminated polyetheramine, 5 to 10% of a hydrophobic modifier, 25 to 40% of bisphenol A type liquid epoxy resin, 9 to 18% of an epoxy active diluent and 1 to 3% of a conditioner. The grouting material meets the requirements of grouting on viscosity and wettability, has low curing shrinkage rate, low toxicity, single component and simple construction process, is applicable to a general dry environment and particularly the water environment, and solves the problem of water leakage in practical application since the grouting material is washed away by water due to unfirm bonding with a crack of grouting and since the crack can not be blocked due to shrinkage of grouting colloid or incomplete curing of the grouting colloid due to the problem of proportion of a double-component grouting material.

Description

Technical field: [0001] The invention relates to the field of grouting paint, in particular to a water environment epoxy grouting material and a preparation method thereof. Background technique: [0002] Grouting material is a type of engineering material that uses hydraulic pressure and air pressure to inject into cracks, cracks, pores and other internal spaces of the corresponding medium and has the ability to cement and solidify, so that the leakage channel of the medium can be blocked, and the physical properties and mechanical properties can be improved. Although the existing large-volume concrete pouring technology is relatively mature, it is difficult to avoid small cracks due to the excessive temperature difference between the inside and the outside due to the hydration heat of the material itself. In some underwater structures such as dams and tunnels, the construction is difficult or the construction process is not standardized, and the water environment is eroded ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C09J163/00C09J11/06C08G59/50
CPCC08G59/5006C08L63/00C09J11/06C09J163/00
Inventor 陈伟忠林焕章龚兴宇刘勤
Owner KESHUN WATERPROOF TECH CO LTD
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