Environmentally-friendly flexible epoxy resin grouting material

A technology of epoxy resin grouting and epoxy resin, which is applied in the direction of building insulation materials, building components, sea area engineering, etc., can solve the problems of detonation, high compressive strength, poor environmental protection performance, etc., achieve the reduction of liquid viscosity, improve Improvement of air environment and work safety

Inactive Publication Date: 2011-05-25
CHINA ACAD OF BUILDING RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this type of grouting material is that it uses highly toxic furfural, the grout is not environmentally friendly, and the solvent volatilizes, which often leads to poor air environment at the construction site, large heat release of grout solidification, and problems such as "explosion" that are prone to occur.
In addition, from the perspective of raw materials and curing reaction mechanism, epoxy resin grouting materials usually form a rigid consolidated body with a high degree of crosslinking, high compressive strength (28d, usually greater than 70MPa) and low extensibility (usually less than 10%) It is its main feature. Such products are suitable for foundation reinforcement and structural reinforcement, but for cracks or joints that have deformation requirements or need to withstand vibration, such as the sealing of shield tunnel segment joints, they are usually not used satisfactorily. Effect
[0005] To sum up, most of the existing epoxy grouting materials have poor environmental performance, and the consolidation body is mainly rigid, which cannot meet the needs of cracks or joints that have deformation requirements or need to withstand vibration.

Method used

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  • Environmentally-friendly flexible epoxy resin grouting material
  • Environmentally-friendly flexible epoxy resin grouting material
  • Environmentally-friendly flexible epoxy resin grouting material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The ratio of raw materials of this embodiment is:

[0020] CYD-128 type epoxy resin 100 parts by weight

[0021] Butyl glycidyl ether 60 parts by weight

[0022] Amino-terminated polyether D400 60 parts by weight

[0023] Modified fatty amine curing agent 8 parts by weight

[0024] 2,4,6-tris(dimethylaminomethyl)phenol 4 parts by weight

[0025] 5 parts by weight of γ-aminopropyltriethoxysilane

[0026] Mix the above CYD-128 type epoxy resin and butyl glycidyl ether into A liquid, amino-terminated polyether D400, modified fatty amine curing agent, 2,4,6-tris(dimethylaminomethyl)phenol and γ -Aminopropyltriethoxysilane mixed into liquid B. Mix liquid A and liquid B evenly before use.

[0027] The product technical indicators obtained in the above implementation cases are as follows:

[0028]

Embodiment 2

[0030] The raw material ratio of this example is:

[0031] E-51 type epoxy resin 100 parts by weight

[0032] 80 parts by weight of ethylene glycol diglycidyl ether

[0033] Amino-terminated polyether D2000 60 parts by weight

[0034] 14 parts by weight of modified fatty amine curing agent

[0035] 2,4,6-tris(dimethylaminomethyl)phenol 3 parts by weight

[0036] γ-glycidoxypropyltrimethoxysilane 6 parts by weight

[0037] Mix the above-mentioned E-51 type epoxy resin, ethylene glycol diglycidyl ether and γ-glycidoxypropyl trimethoxysilane into liquid A, mix the above-mentioned amino-terminated polyether D2000, modified fatty amine curing agent , 2,4,6-tris(dimethylaminomethyl)phenol were mixed into liquid B. Mix liquid A and liquid B evenly before use.

[0038] The product technical indicators obtained in the above implementation cases are as follows:

[0039]

Embodiment 3

[0041] The raw material ratio of this example is:

[0042] F51 type epoxy resin 100 parts by weight

[0043] Butanediol diglycidyl ether 60 parts by weight

[0044]Amino-terminated polyether D400 50 parts by weight

[0045] 651 curing agent 18 parts by weight

[0046] 2,4,6-Tris(dimethylaminomethyl)phenol 2 parts by weight

[0047] γ-glycidoxypropyltrimethoxysilane 6 parts by weight

[0048] The above-mentioned F51 type epoxy resin, butanediol diglycidyl ether and γ-glycidoxypropyl trimethoxysilane are mixed into A liquid, the above-mentioned amino-terminated polyether D400, 651 curing agent and 2,4, 6-Tris(dimethylaminomethyl)phenol is mixed into B liquid. Mix A and B evenly before use.

[0049] The product technical indicators obtained from the above implementation cases are as follows:

[0050]

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PUM

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Abstract

The invention relates to an environmentally-friendly flexible epoxy resin grouting material. The grouting material comprises liquid A and liquid B, wherein the liquid A comprises the following materials in part by weight: 100 parts of epoxy resin and 30 to 120 parts of active diluting agent; the liquid B comprises the following materials in part by weight: 20 to 100 parts of curing agent and 0.5 to 10 parts of accelerator; and the liquid A or the liquid B also comprises 1 to 10 weight parts of silane coupling agent. The epoxy resin grouting material can be used for sealing, preventing seepage of and reinforcing active fissures or joints in building engineering and projects such as hydraulic architectures, bridges, traffic and the like.

Description

technical field [0001] The invention relates to an epoxy resin grouting material, in particular to an epoxy resin grouting material which can be used for sealing, anti-seepage and reinforcement of active cracks or joints in construction projects, water conservancy, bridges, traffic and other projects. Background technique [0002] Epoxy resin grouting material is a multi-component solution grouting material obtained by reducing the viscosity of viscous epoxy resin with diluent, supplemented with curing agent, toughening agent and surfactant and other additives. In the family of chemical grouting materials, epoxy resin grouting materials have become the leading chemical grouting materials in foundation reinforcement and structural repair projects due to their good base adaptability and excellent mechanical strength. [0003] The development of epoxy grouting materials is inseparable from the development and progress of dilution system and curing agent technology. Generally, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L63/02C08K5/54C08G59/60E04B1/68E04B1/682E02B3/16E01D22/00E01C11/02E04G23/02
Inventor 张勇赵霄龙冷发光邵高峰霍胜旭周庆
Owner CHINA ACAD OF BUILDING RES
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