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A kind of two-component epoxy interface adhesive and preparation method thereof

An adhesive, two-component technology, applied in the direction of epoxy resin glue, adhesive, adhesive additives, etc., can solve the problems of not paying attention to other properties of the interface adhesive, and achieve strong waterproof and chemical corrosion resistance and applicability Strong, good aging resistance effect

Active Publication Date: 2021-03-26
法施达(大连)实业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent document CN106381112A discloses an epoxy resin interface adhesive for concrete. The inventor only prepared an interface adhesive with strong cohesive force through the combination of some conventional components, and did not pay attention to other properties of the interface adhesive, such as permeability, Aging resistance, etc.

Method used

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  • A kind of two-component epoxy interface adhesive and preparation method thereof
  • A kind of two-component epoxy interface adhesive and preparation method thereof
  • A kind of two-component epoxy interface adhesive and preparation method thereof

Examples

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Embodiment 1

[0044] The preparation of embodiment 1 two-component epoxy interface adhesive 1

[0045] A component: bisphenol A epoxy resin 1 48 parts, bisphenol A epoxy resin 2 12 parts, bisphenol A epoxy resin 3 3 parts, BDGE 40 parts, 2-(3,4-epoxycyclohexane) 0.7 parts of ethyltrimethoxysilane, 13 parts of CTBN with a mass fraction of bound acrylonitrile of 20-30% and a hydroxyl value of 0.80-1.00 nmol / g, and 10 parts of calcium carbonate.

[0046] Component B: 45 parts of Aradur 140, 23 parts of aminoethylpiperazine, 2 parts of MXDA, 8 parts of modified amine, 0.8 part of Momentive A-1120.

[0047] Preparation method: Preheat the dual planetary power mixing equipment to 60°C, add bisphenol A epoxy resin 1-3 respectively, stir fully, and turn on the vacuum, add CTBN and calcium carbonate, stir, vacuumize, and finally add AGE and 2-( 3,4-epoxycyclohexane) ethyltrimethoxysilane was stirred evenly to obtain component A; Aradur 140, MXDA, modified amine and aminoethylpiperazine were added i...

Embodiment 2

[0050] The preparation of embodiment 2 two-component epoxy interface adhesive 2

[0051] The A component of the two-component epoxy interface adhesive 2 is exactly the same as in Example 1, and the B component is only different in the composition of the modified amine. The preparation process of the modified amine is: add 27 parts of Stir after MXDA and 15 parts of TEPA, vacuumize, heat to raise the temperature to 35°C and keep the temperature constant, feed nitrogen into the reaction system, add 35 parts of benzoxazine in three times, stir thoroughly after each addition, and wait for the reaction When the temperature is gradually lowered, it indicates that the reaction is complete, and 5 parts of DMP-30 are added to stop the reaction to obtain a modified amine.

[0052] The preparation method of the interface adhesive 2 is the same as that in Example 1. The basic properties of the adhesive 2 are as follows: component A is a transparent fluid with a viscosity of 2300mPa.s / 25°...

Embodiment 3

[0053] The preparation of embodiment 3 two-component epoxy interface adhesive 3

[0054] The A component of the two-component epoxy interface adhesive 3 is exactly the same as in Example 1, and the B component is only different in the composition of the modified amine. The preparation process of the modified amine is: add 22 parts of After DETA and 10 parts of TETA, stir, vacuumize, heat to raise the temperature to 35°C and keep the temperature constant, feed nitrogen into the reaction system, add 35 parts of benzoxazine in three times, fully stir after each addition, and wait for the reaction When the temperature is gradually lowered, it indicates that the reaction is complete, and 2 parts of DMP-30 are added to stop the reaction to obtain a modified amine.

[0055] The preparation method of interface adhesive 3 is the same as that in Example 1. The basic properties of the adhesive 3 are as follows: component A is a transparent fluid with a viscosity of 2300mPa.s / 25°C; compo...

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Abstract

The invention discloses two-component epoxy interface adhesive. The two-component epoxy interface adhesive comprises a component A and a component B. The component A comprises, by weight, 42-75 partsof bisphenol A epoxy resin, 20-40 parts of diluents, 0.5-2 parts of silane coupling agents A, 5-15 parts of rubber and 5-20 parts of fillers; the component B comprises 32-70 parts of polyamide, 15-30parts of aliphatic amine, 7-18 parts of modified amine and 0.5-1.5 parts of silane coupling agents B. The two-component epoxy interface adhesive has the advantages of excellent mechanical properties and aging resistance, good permeability and high waterproof ability and chemical corrosion resistance.

Description

technical field [0001] The invention belongs to the field of adhesives, in particular to a two-component epoxy interface adhesive and a preparation method thereof. Background technique [0002] Today, adhesive technology is already a very important technology in production and manufacturing, providing solutions for various complex bonding tasks and gradually replacing traditional bonding techniques, such as brazing and welding or using screws and rivets, Improve energy utilization and reduce waste of raw materials. Among them, two-component adhesive technology plays a pivotal role in many cases, providing economic feasibility for the implementation of various innovative solutions, especially some for the purpose of lightweight structure or design principles. Products made of materials. After the materials are mixed, there is no need for high pressure and high temperature, and the curing reaction at pure room temperature reflects the great advantage of two-component adhesiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J11/04C09J11/06C09J11/08C08G59/60
CPCC08G59/60C08K2003/265C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J163/00C08L63/00C08K3/26C08K5/5435
Inventor 刘平原
Owner 法施达(大连)实业集团有限公司