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An environmentally friendly low-viscosity high-strength epoxy-based chemical grouting material

A technology of chemical grouting and low viscosity, which is applied in the field of environmentally friendly, low-viscosity, high-strength epoxy-based chemical grouting materials. It can solve the problems that the initial viscosity is difficult to reach the ideal state, and achieve excellent volume stability, convenient storage and transportation, and good temperature adaptability. Effect

Active Publication Date: 2019-03-15
POWERCHINA XIBEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Glycidyl ether is used as a diluent at the expense of the mechanical properties of grouting materials. Although it solves the environmental protection problem, it is difficult to achieve the ideal initial viscosity due to the limitation of its dosage.

Method used

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  • An environmentally friendly low-viscosity high-strength epoxy-based chemical grouting material
  • An environmentally friendly low-viscosity high-strength epoxy-based chemical grouting material
  • An environmentally friendly low-viscosity high-strength epoxy-based chemical grouting material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An environmentally friendly, low-viscosity, high-strength epoxy-based chemical grouting material, comprising the following ingredients in parts by mass:

[0027]

[0028] The present invention selects the crosslinking diluent to replace the active diluent of the prior art such as furfural-acetone series and glycidyl ether at the cost of sacrificing the mechanical properties of grouting materials, and its components do not contain volatile materials such as formaldehyde and acetone, which are harmful to the human body. It is environmentally friendly and conforms to the concept of green development; and the viscosity of the initial slurry is low, the mechanical properties of the cured product are excellent, the proportion of the slurry is simple, easy to master, and the raw materials are easy to purchase and convenient for storage and transportation.

Embodiment 2

[0030] On the basis of embodiment 1, described epoxy resin is bisphenol A type epoxy resin, and bisphenol A type epoxy resin is E-35 type epoxy resin, E-44 type epoxy resin or E-51 One or at least two types of epoxy resins.

[0031] The crosslinking diluent is one or at least two of methyl methacrylate, butyl acrylate or hydroxybutyl acrylate.

[0032] The curing agent is one or at least two of diethylenetriamine, triethylenetetramine or tetraethylenepentamine.

[0033] The accelerator is one of N,N dimethylaniline, ethylimidazole or dimethylimidazole.

[0034] The initiator is obtained by mixing peroxide and an inert solvent according to the mass ratio (50-80): (20-50), standing still for 24 hours, and then fully dehydrating.

[0035] Described peroxide is one or at least two in organic peroxide; Described peroxide is more preferably benzoyl peroxide, cyclohexanone peroxide, dilauroyl peroxide, tertiary peroxide One or at least two of butyl esters.

[0036] The inert solu...

Embodiment 3

[0042] The proportioning of each component in the present embodiment is:

[0043] Liquid A: 75 parts by mass of E-51 type epoxy resin and 25 parts by mass of methyl methacrylate are uniformly mixed to obtain;

[0044] Liquid B: obtained by uniformly mixing 10 parts by mass of diethylenetriamine and 4 parts by mass of N,N dimethylaniline;

[0045] Preparation of liquid C: 65 parts by mass of benzoyl peroxide and 50 parts by mass of dibutyl phthalate were uniformly mixed, and after standing for 24 hours, fully dehydrated to obtain an initiator.

[0046] When in use, mix liquid A, liquid B and 8 parts by mass of liquid C to obtain an environmentally friendly, low-viscosity, high-strength epoxy-based chemical grouting material.

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Abstract

The invention discloses an environment-friendly low-viscosity and high-strength type epoxy-based chemical grouting material. The material is prepared from, by mass, 50-80 parts of epoxy resin, 20-50 parts of a cross-linking thinning agent, 5-10 parts of a curing agent, 1-10 parts of an initiator and 1-5 parts of an accelerant. According to the environment-friendly low-viscosity and high-strength type epoxy-based chemical grouting material, the cross-linking thinning agent is selected to replace an active thinning agent in the prior art, volatile materials such as formaldehyde and acetone are not included in components of the cross-linking thinning agent, and the cross-linking thinning agent is friendly to the human body and the environment and capable of conforming to the green development concept; besides, the viscosity of initial paste is low, the initial paste is good in grouting performance, has the drainage performance, is capable of being cured in water, and is small in shrinkage rate and stable in curing volume in the gel curing process, and a cured object is excellent in mechanical property; the paste proportion is simple and easy to grasp, raw materials are easy to purchase, and storage and transportation are convenient.

Description

Technical field: [0001] The invention relates to an environment-friendly chemical grouting material, in particular to an environment-friendly, low-viscosity, high-strength epoxy-based chemical grouting material. Background technique: [0002] As the most widely used chemical grouting material - compared with concrete materials, epoxy resin grouting material has the characteristics of high strength, strong adhesion and chemical corrosion resistance. After continuous exploration and formula improvement of scientific research units, it has made up for its cold resistance. Short board indicators such as heat resistance, shock resistance, and fatigue resistance are widely used in the crack reinforcement of concrete structures and the gap filling and pouring of the base or platform of mechanical equipment. [0003] The viscosity of epoxy resin is very high. In the development process of epoxy resin grouting materials, everyone unanimously regards reducing the viscosity of grouting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/02C08L63/00C08G59/50C08G59/56
CPCC08G59/5006C08G59/56C08L63/00
Inventor 韩练练胡炜毕亚丽张勇王奇峰孙宇飞
Owner POWERCHINA XIBEI ENG
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