High-performance structural adhesive for reinforcement project with water environment and preparation method of high-performance structural adhesive

A high-performance, adhesive technology, applied in the field of chemical building materials, can solve the problems that cannot meet the application requirements of hydraulic building reinforcement engineering, poor bonding performance of structural adhesives, etc., to reduce adverse effects, improve hydrophobicity, and good toughness Effect

Active Publication Date: 2018-02-09
山西省交通科技研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the problem of structural adhesive application in water environment reinforcement engineering, and provides a high-performance structural adhesive and its preparation method to solve the problem of

Method used

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  • High-performance structural adhesive for reinforcement project with water environment and preparation method of high-performance structural adhesive
  • High-performance structural adhesive for reinforcement project with water environment and preparation method of high-performance structural adhesive

Examples

Experimental program
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Example Embodiment

[0034] Example 1:

[0035] The high-performance structural adhesive for water environment reinforcement project is composed of two components A and B, and the mass ratio is A component: B component = 2:1. After the A component and the B component are accurately weighed according to the mass ratio, the invention is obtained by stirring and mixing uniformly.

[0036] The formula of component A by mass is: 60 parts of nano-silica graft modified epoxy resin, 10 parts of epoxy active diluent, 30 parts of elastic modifier, 1 part of water-absorbent resin, defoaming 0.1 part of agent, 0.1 part of dispersant, 120 parts of active silica powder, 5 parts of cement, 5 parts of calcium sulfate whiskers, 3 parts of organic montmorillonite, 4 parts of thixotropic agent;

[0037] The formula of component B by mass is: 30 parts of phenalkamine curing agent, 70 parts of polyamide curing agent, 4 parts of curing accelerator, 4 parts of coupling agent; 0.1 part of defoaming agent, 0.1 part of dispersan...

Example Embodiment

[0042] Example 2:

[0043] The high-performance structural adhesive for water environment reinforcement project is composed of two components A and B, and the mass ratio is A component: B component = 3:1; after A component and B component are accurately weighed according to the mass ratio, Stir and mix uniformly to obtain the present invention.

[0044] The formula of component A in parts by mass is: nano-silica graft modified epoxy resin 80 parts, epoxy active diluent 0 parts, elastic modifier 10 parts, water-absorbent resin 2 parts, defoaming 0.2 parts of dispersant, 180 parts of active silica powder, 10 parts of cement, 15 parts of calcium sulfate whiskers, 8 parts of organic montmorillonite, 1 part of thixotropic agent;

[0045] The formula of component B by mass is: 70 parts of phenalkamine curing agent, 30 parts of polyamide curing agent, 0 parts of curing accelerator, 7 parts of coupling agent; 0.2 parts of defoaming agent, 0.2 parts of dispersant, 180 parts of active silica...

Example Embodiment

[0050] Example 3:

[0051] The high-performance structural adhesive for water environment reinforcement project is composed of two components A and B, and the mass ratio is A component: B component = 3:1; after A component and B component are accurately weighed according to the mass ratio, Stir and mix uniformly to obtain the present invention.

[0052] The formula of component A by mass is: 70 parts of nano-silica graft modified epoxy resin, 5 parts of epoxy active diluent, 20 parts of elastic modifier, 1.5 parts of water-absorbent resin, defoaming 0.15 parts of dispersant, 150 parts of active silica powder, 8 parts of cement, 10 parts of calcium sulfate whiskers, 5 parts of organic montmorillonite, 2 parts of thixotropic agent;

[0053] The formula of component B by mass is: 50 parts of phenalkamine curing agent, 50 parts of polyamide curing agent, 3 parts of curing accelerator, 5 parts of coupling agent; 0.15 parts of defoamer, 0.15 parts of dispersant, 150 parts of active silic...

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Abstract

The invention discloses a high-performance structural adhesive for a reinforcement project with water environment and a preparation method of the high-performance structural adhesive. The structural adhesive is prepared from a component A and a component B, wherein the mass ratio of the component A to the component B is (2 to 1) to (3 to 1). The component A consists of nano silica grafted modifiedepoxide resin, epoxy active diluent, an elastomeric modifier, water-absorbent resin, a defoaming agent, a dispersing agent, active silica powder, cement, calcium sulfate whisker, organic montmorillonite and a thixotropic agent; the component B consists of a compound amine curing agent, a curing accelerator, a coupling agent, the defoaming agent, the dispersing agent, the active silica powder, thecement, the calcium sulfate whisker, the organic montmorillonite, the thixotropic agent and the carbon black. The high-performance structural adhesive for reinforcement projects with the water environment, disclosed by the invention, has the advantages of high bonding strength of water interface, high mechanical strength, good toughness, excellent impact resistance and high fatigue resistance, good construction performance and the like; the bonding effect and durability of the structural adhesive in the reinforcement projects with water environment can be remarkably enhanced; in addition, thepreparation method of the high-performance structural adhesive is especially suitable for meeting glue demands of a hydraulic structure reinforcement and restoration project.

Description

technical field [0001] The invention belongs to the technical field of chemical building materials, and in particular relates to a high-performance structural adhesive for water-carrying environment reinforcement engineering and a preparation method thereof. Background technique [0002] As the core material of chemical bonding and reinforcement technology, building structural adhesives play a vital role in the effect of structural reinforcement. Epoxy structural adhesives are widely used in the field of concrete structure reinforcement engineering due to their excellent bonding performance, outstanding mechanical properties, small curing shrinkage, good process performance and good storage stability, and have become the most important in structural reinforcement engineering. one of the building materials. [0003] Epoxy structural adhesives have good bonding performance in a dry environment, but their bonding performance is significantly reduced in a watery environment, wh...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J11/04C09J11/08C08G59/62C08G59/46
CPCC08G59/46C08G59/623C08K2201/011C08L2205/03C09J11/04C09J11/08C09J163/00C08L101/06C08L33/26C08K9/04C08K3/346C08K9/06C08K7/08C08K7/18C08K3/34C08K3/36C08L51/02
Inventor 舒兴旺辛润勤张影李登华刘哲崔东霞申力涛林浩
Owner 山西省交通科技研发有限公司
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