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Environment-friendly aldehyde-free epoxy injecting paste material and preparation method and application therefor

An environment-friendly, grouting material technology, applied in the field of epoxy grouting materials, can solve the problems of groutability limitation, short grouting time, high initial viscosity, etc., achieve fast curing speed, excellent coloring performance, low initial The effect of viscosity

Active Publication Date: 2013-07-03
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese invention patent 201010597831.3 reports an environmentally friendly and flexible epoxy resin grouting material. Due to the use of glycidyl ether active diluent instead of furfural acetone system, the mechanical properties have been improved, but its initial viscosity is large, and the grouting time is relatively short. potability is limited

Method used

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  • Environment-friendly aldehyde-free epoxy injecting paste material and preparation method and application therefor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In parts by mass, mix 65 parts of epoxy resin E-51, 33 parts of dimethylacetone, and 2 parts of silane coupling agent KH590 at room temperature to obtain component A; mix 30 parts of amine curing agent 3-dibutyl Aminopropylamine, 50 parts curing regulator modified amine 701 # , 10 parts of curing accelerator triethanolamine and 10 parts of curing accelerator 2-ethyl-4-methylimidazole were mixed and stirred to obtain component B. When in use, mix and stir components A and B at a weight ratio of 100:20 to obtain a milky white epoxy grouting material.

Embodiment 2

[0026] In terms of parts by mass, 20 parts of epoxy resin E-51, 15 parts of carboxyl-terminated nitrile rubber modified epoxy resin KR-100 (Korea Guodu Chemical Industry), 32 parts of acetone, 32 parts of diacetone alcohol, 0.5 part of silane Coupling agent KH602, 0.5 parts of borate coupling agent DN931 were mixed and stirred evenly at room temperature to obtain component A; 15 parts of amine curing agent diethylenetriamine, 53 parts of curing regulator modified amine 810 # , 32 parts of curing accelerator 2,4,6-tris(dimethylaminomethyl)phenol were mixed and stirred to obtain component B. When in use, mix components A and B according to the weight ratio of 100:23 and stir evenly to obtain light reddish brown epoxy grouting material.

Embodiment 3

[0028] In parts by mass, 47 parts of epoxy resin E-44, 23 parts of isophorone, 23.5 parts of diketene, 5 parts of benzyl glycidyl ether, 0.5 parts of silane coupling agent KH560, 1 part of aluminate coupling Agent SG-AI821, mixed and stirred at room temperature to obtain component A; 70 parts of amine curing agent ethylenediamine, 16 parts of curing regulator modified amine 591 # , 7 parts of m-phenylenediamine, 7 parts of curing accelerator 2,4,6-tris-2-ethylhexanoic acid salt of tri(dimethylaminomethyl)phenol were mixed and stirred to obtain component B. When in use, mix components A and B according to the weight ratio of 100:9 and stir evenly to obtain a light yellow epoxy grouting material.

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Abstract

The invention provides an environment-friendly aldehyde-free epoxy injecting paste material and a preparation method and application for the environment-friendly aldehyde-free epoxy injecting paste material. According to the parts by weight in the method, 20-90 parts of epoxy resin, 10-80 parts of reactive solvent and 0-5 parts of interfacial modifying agent are blended and stirred to obtain a component I; 5-80 parts of amine curing agent, 0-80 parts of curing regulating agent and 0-32 parts of curing accelerator are blended and stirred to obtain a component II; and the component I and the component II are blended according to the weight ratio of 100:3 to 100:70 to obtain the epoxy injecting paste material. The injecting paste material not only can keep the excellent mechanical property, the adhesive property, ageing resistance and corrosion resistance of the epoxy resin, but also has the advantages of low toxicity, environmental friendliness, low initial viscosity, high curing speed, light color and easiness in coloring, and can be applied to the field of traditional epoxy injecting paste materials as well as concrete surface corrosion resistance of infrastructure, cultural relic repair, geological relics protection, waterproofness and impermeability of buildings, and reinforcement compensation of the buildings.

Description

technical field [0001] The invention relates to an epoxy grouting material, in particular to a preparation method and application of an environment-friendly formaldehyde-free epoxy grouting material. Background technique [0002] Epoxy resin materials are widely used in various fields due to their excellent mechanical properties, water resistance, corrosion resistance, frost resistance, and damping resistance. Epoxy grouting material refers to a low-viscosity slurry made of epoxy resin as the main component, mixed with diluent, curing agent and other performance control additives. Due to the excellent performance of its consolidated body and the low viscosity of the slurry, it has become the most important type of grouting material at present. The low-viscosity epoxy grouting material is easy to inject into the formation or building cement gap, and then solidifies into a consolidated body with excellent performance through in-situ polymerization, so as to achieve the purpos...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L63/02C08G59/50
Inventor 张光照马春风张国梁
Owner SOUTH CHINA UNIV OF TECH