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Epoxy adhesive for repairing and reinforcing hinge joint and application of epoxy adhesive

An epoxy adhesive and seam technology, applied in adhesives, epoxy resin glue, bridge reinforcement, etc., can solve the problems of low viscosity, short curing period, long application period, etc., achieve good toughness, stable heat release, and ensure internal The effect of poly strength

Inactive Publication Date: 2014-02-05
湖南固特邦土木技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the defect that the comprehensive performance of the rapid-curing epoxy adhesive in the prior art cannot meet the needs of hinge joint repair and reinforcement engineering, and the purpose is to provide a long pot life before curing, low viscosity, proper thixotropic performance, and easy curing. Epoxy adhesive with extremely short period of time, and cohesive strength and bond strength are not affected by punching and shearing and humid environment, and has small shrinkage, good toughness, impact resistance and fatigue resistance after curing

Method used

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  • Epoxy adhesive for repairing and reinforcing hinge joint and application of epoxy adhesive
  • Epoxy adhesive for repairing and reinforcing hinge joint and application of epoxy adhesive
  • Epoxy adhesive for repairing and reinforcing hinge joint and application of epoxy adhesive

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Component A is obtained by mixing and stirring the following parts by mass: E51100, diallyl bisphenol A epoxy resin 50, benzyl alcohol 5, butyl glycidyl ether 10, carboxy-terminated nitrile rubber 10, AEROSIL A2002 , KH5602, BYK-A5300.5.

[0028] Component B is obtained by mixing and stirring the following components in parts by mass: modified isophorone diamine 100, boron trifluoride-benzylamine 10, dibenzoyl peroxide 3, BYK-A5300.5.

[0029] The epoxy adhesive is made by mixing component A and component B in a mass ratio of 100:40 and stirring evenly.

Embodiment 2

[0031] Component A is obtained by mixing and stirring the following parts by mass: E5180, diallyl bisphenol A epoxy resin 70, dibutyl ester 5, benzyl glycidyl ether 10, polysulfide rubber 10, KH5602, AEROSIL A2002, BYK-A5300.5.

[0032] Component B is obtained by mixing and stirring the following components in parts by mass: modified diaminodiphenylmethane 100, boron trifluoride-2,4-dimethylaniline 5, dicumyl peroxide 2, BYK- A5300.5.

[0033] The epoxy adhesive is made by mixing component A and component B in a mass ratio of 100:50 and stirring evenly.

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Abstract

The invention discloses an epoxy adhesive for repairing and reinforcing a hinge joint and an application of the epoxy adhesive. The epoxy adhesive is composed of a component A and a component B, wherein the component A is composed of bisphenol-A epoxy resin, modified epoxy resin containing double bonds, a diluent, a toughening agent and the like, the component B is composed of a modified polyamine curing agent, a cationic polymerization curing agent, a free radical initiator and the like; before curing, the epoxy adhesive is long in working life and low in viscosity, and has proper thixotropic property, the curing time is extremely short and the cohesive strength and the adhesion strength are not influenced by punching shear effect and humid environment; the cured epoxy adhesive is small in shrinkage, good in flexibility, impact resistant, and fatigue resistant; the epoxy adhesive applied to the repairing and the reinforcing of the hinge joint entirely satisfies the demands of repairing and reinforcing the hinge joint of a plate girder bridge without interrupting the traffic.

Description

technical field [0001] The invention relates to an epoxy adhesive for repairing and reinforcing hinged joints and an application thereof, belonging to the field of adhesives. Background technique [0002] With the rapid development of highway construction in our country, the disease problems of a large number of highway bridges are becoming more and more prominent. In the existing highway bridge structures, prefabricated hollow slab bridges account for a large proportion in quantity. Due to the defects in the early design, the hinge joints of the bridge are shallow and small, and cannot form effective horizontal connections. In addition, most of the hinge joints are constructed with improper materials and poor construction quality. As a result, the hinge joints of prefabricated hollow slab bridges have become the most important diseases. parts. Once the hinge joints are damaged, not only the beam-slab hinge joint concrete will crack, loosen and fall off, but the bridge dec...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J163/02E01D19/06E01D22/00
Inventor 田甜黄燎贺彪尹明喻小义冯李
Owner 湖南固特邦土木技术发展有限公司
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