Structural adhesive for steel bonding

A technology of structural glue and epoxy resin, applied in the direction of adhesives, epoxy resin glue, adhesive types, etc., can solve problems such as poor seismic performance, cracking of concrete structures, and insufficient bearing capacity, and achieve strong application and promotion value. The effect of high shear strength and stable strength

Inactive Publication Date: 2010-12-22
RES INST OF HIGHWAY MINIST OF TRANSPORT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among these concrete buildings and structures, due to design and construction defects and aging, damage and disasters during long-term use, many problems such as cracking of concrete structures, poor seismic performance, and insufficient bearing capacity affect their safety and use functions. There is an urgent need for effective, durable, and easy-to-construct high-tech materials and construction techniques for reinforcement and repair

Method used

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  • Structural adhesive for steel bonding
  • Structural adhesive for steel bonding
  • Structural adhesive for steel bonding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1, preparation and performance measurement of structural glue

[0065] 1. Preparation of structural adhesive

[0066] It consists of component A (white), component B (black) and quartz sand as filler.

[0067] 1. Preparation of Component A

[0068] Component A is composed of epoxy resin, diluent, plasticizer, toughening agent and coupling agent. Epoxy resin: diluent: plasticizer: toughening agent: coupling agent (mass ratio)=100:16:20:15:2.

[0069] Epoxy resin: temperature-resistant amino epoxy resin and bisphenol A epoxy resin with a mass ratio of 1:2;

[0070] Temperature-resistant amino epoxy resin: VE-3240 epoxy resin purchased from Wuxi Resin Factory;

[0071] Bisphenol A epoxy resin: TDE-85 epoxy resin purchased from Wuxi Resin Factory.

[0072] Diluent (butyl glycidyl ether): Model: 501, purchased from Wuxi Resin Factory.

[0073] Plasticizer (phthalate): dibutyl phthalate, DBP for short, model: yh-lbd-2, purchased from Wuxi Resin Factory.

[0...

Embodiment 2

[0092] Embodiment 2, preparation and performance measurement of structural glue

[0093] 1. Preparation of structural adhesive

[0094] It consists of component A (white), component B (black) and quartz sand as filler.

[0095] 1. Preparation of Component A

[0096] Component A is composed of epoxy resin, diluent, plasticizer, toughening agent and coupling agent. Epoxy resin: diluent: plasticizer: toughening agent: coupling agent (mass ratio) = 100:10:6:10:1.

[0097] Epoxy resin (bisphenol A epoxy resin): TDE-85 epoxy resin, purchased from Wuxi Resin Factory.

[0098] Thinner (propylene glycidyl ether): grade: 500, purchased from Wuxi Resin Factory.

[0099] Plasticizer (phosphate ester): triphenyl phosphate, purchased from Wuxi Resin Factory.

[0100] Toughening agent (nitrile rubber): code name: BNR, purchased from Wuxi Resin Factory.

[0101] Coupling agent (organic carboxylic acid): acetic acid, purchased from Wuxi Resin Factory.

[0102] 2. Preparation of Componen...

Embodiment 3

[0114] Embodiment 3, preparation and performance measurement of structural glue

[0115] 1. Preparation of structural adhesive

[0116] It consists of component A (white), component B (black) and quartz sand as filler.

[0117] 1. Preparation of Component A

[0118] Component A is composed of epoxy resin, diluent, plasticizer, toughening agent and coupling agent. Epoxy resin: diluent: plasticizer: toughening agent: coupling agent (mass ratio)=100:50:40:50:3.

[0119] Epoxy resin (temperature-resistant amino epoxy resin): Model: VE-3240, purchased from Wuxi Resin Factory.

[0120] Thinner (phenyl glycidyl ether): grade: 690, purchased from Wuxi Resin Factory.

[0121] Plasticizer (sebacate): dioctyl sebacate (DOS), purchased from Wuxi Resin Factory.

[0122] Toughening agent (polysulfide rubber): Model: JLY-121, purchased from Wuxi Resin Factory.

[0123] Coupling agent (polyisocyanate): polyisocyanate, brand: JQ-1, purchased from Wuxi Resin Factory.

[0124] 2. Preparat...

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Abstract

The invention discloses a structural adhesive for steel bonding, which comprises a component A and a component B of which the quality ratio is 100:(15-65), wherein the component A comprises epoxy resin, diluter, plasticizer, toughener and couplant; and the component B comprises modified polyamide resin, modified fatty amine and amino terminated polyether. The structural adhesive has the advantages of favorable bonding property, uniform stress distribution, high shearing strength and good mechanical toughness, has the characteristics of no flow after plate bonding, large anchorage withdrawal resistance and limit of harmful substances far below the national technical index, has the characteristics of high durability, convenient construction and stable strength, and can well soak the concrete and well bond the concrete and steel plates. The invention has high application and popularization values.

Description

technical field [0001] The invention relates to a structural adhesive for bonding steel. Background technique [0002] 1. Current status of highway bridge reinforcement in my country [0003] According to the 2004 National Highway Statistical Annual Report, as of the end of 2003, there were 10,443 dangerous bridges in the country with a length of 378,439 meters, including 1,942 dangerous bridges in the middle of the road with a length of 110,000 meters. There are more than 12,000 bridges (approximately 470,000 linear meters) on the national and provincial highways whose technical status falls into the third category. Bridges with obvious safety hazards are likely to be transformed into Dangerous bridge. Therefore, a huge number of bridges need to be repaired, strengthened and reconstructed. [0004] In the past 20 to 30 years, the focus of bridge construction in foreign developed countries has been placed on the reinforcement and reconstruction of old bridges, while new b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J163/02C09J163/04C09J177/00C09J171/00C09J11/04
Inventor 王来永庞志华李承昌姜博
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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