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Multi-component epoxy resin adhesive and preparation method thereof

An epoxy resin and adhesive technology, applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., can solve the problems of partial aging of the adhesive, cracking of the adhesive, affecting the quality of use, etc., to reduce the cross-linking density, The effect of improving flexibility, enhancing the effect of anti-ultraviolet aging

Inactive Publication Date: 2022-07-15
李江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The adhesive plays the role of bonding, but some substrates are used, because the substrate itself has a certain degree of flexibility, so that when the substrate is bent in the later stage, it is easy to cause the adhesive in the middle to crack and affect the use. In addition, for the adhesives used for outdoor substrates, long-term exposure to sunlight can easily lead to aging and yellowing of the adhesive parts due to the influence of ultraviolet rays, which will affect the quality of use. Therefore, there is an urgent need for a multi-component adhesive. Epoxy resin adhesive and preparation method thereof to solve said problem

Method used

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  • Multi-component epoxy resin adhesive and preparation method thereof
  • Multi-component epoxy resin adhesive and preparation method thereof
  • Multi-component epoxy resin adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A multi-component epoxy resin adhesive, each part of the adhesive includes the following raw materials by mass: 78 parts of epoxy resin, 17 parts of methyl silicone resin, 9 parts of aluminum oxide, 9 parts of silicon carbide, 9 parts of silicon nitride, 7 parts of aluminum hydroxide, 7 parts of magnesium hydroxide, 5 parts of polyurethane resin, 2 parts of dibutyl adipate, 8 parts of butyl glycidyl ether, 9 parts of diethylenetriamine, 3 parts of dimethylimidazole, KH560 silane 7 parts of coupling agent, 46 parts of deionized water, 21 parts of methyltrimethoxysilane, 7 parts of propyltrimethoxysilane, 3 parts of absolute ethanol, 3 parts of cholesterol, and 6 parts of mesityl oxide.

Embodiment 2

[0027] A multi-component epoxy resin adhesive, each part of the adhesive includes the following raw materials by mass: 82 parts of epoxy resin, 20 parts of methyl silicone resin, 10 parts of aluminum oxide, 10 parts of silicon carbide, 10 parts of silicon nitride, 8 parts of aluminum hydroxide, 8 parts of magnesium hydroxide, 6 parts of polyurethane resin, 3 parts of dibutyl adipate, 8.5 parts of butyl glycidyl ether, 12 parts of diethylenetriamine, 4 parts of dimethylimidazole, KH560 silane 7.5 parts of coupling agents, 50 parts of deionized water, 24 parts of methyltrimethoxysilane, 8 parts of propyltrimethoxysilane, 4.5 parts of absolute ethanol, 5 parts of cholesterol, and 10 parts of mesityl oxide.

Embodiment 3

[0029] A multi-component epoxy resin adhesive, each part of the adhesive includes the following raw materials by mass: 86 parts of epoxy resin, 23 parts of methyl silicone resin, 11 parts of aluminum oxide, 11 parts of silicon carbide, 11 parts of silicon nitride, 9 parts of aluminum hydroxide, 9 parts of magnesium hydroxide, 7 parts of polyurethane resin, 4 parts of dibutyl adipate, 9 parts of butyl glycidyl ether, 15 parts of diethylenetriamine, 5 parts of dimethylimidazole, KH560 silane 8 parts of coupling agent, 54 parts of deionized water, 27 parts of methyltrimethoxysilane, 9 parts of propyltrimethoxysilane, 6 parts of absolute ethanol, 7 parts of cholesterol, and 14 parts of mesityl oxide.

[0030] The multi-component epoxy resin adhesives in the above-mentioned embodiments 1-3 are all prepared by the following process:

[0031] S1. Weigh the raw materials according to the amount and reserve;

[0032] S2. After pre-hydrolyzing propyltrimethoxysilane at 60°C for 15 minu...

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Abstract

The invention relates to the technical field of adhesives, in particular to a multi-component epoxy resin adhesive and a preparation method thereof. Each part of the adhesive comprises the following raw materials in parts by mass: 78-86 parts of epoxy resin, 17-23 parts of methyl silicone resin, 27-33 parts of inorganic filler, 7-9 parts of aluminum hydroxide, 7-9 parts of magnesium hydroxide, 5-7 parts of polyurethane resin, 2-4 parts of dibutyl adipate, 8-9 parts of butyl glycidyl ether, 12-20 parts of a curing aid, 7-8 parts of a KH560 silane coupling agent and 46-54 parts of deionized water. The silane coupling agent is prepared from the following components in parts by weight: 20 to 30 parts of methyl trimethoxy silane, 7 to 9 parts of propyl trimethoxy silane, 3 to 6 parts of absolute ethyl alcohol, 3 to 7 parts of cholesterone and 5 to 15 parts of isopropylidene acetone. According to the multi-component epoxy resin adhesive disclosed by the invention, the adhesive force of the adhesive can be improved, the flexibility of the adhesive can also be improved, and the anti-ultraviolet aging effect can also be improved.

Description

technical field [0001] The present invention relates to the technical field of adhesives, in particular to a multi-component epoxy resin adhesive and a preparation method thereof. Background technique [0002] Epoxy resin adhesives are a class of engineering adhesives formulated from epoxy resin binders, curing agents, diluents, accelerators and fillers. Due to its good bonding performance, good functionality, relatively low price and simple bonding process, it has been widely used in the fields of home appliances, automobiles, water conservancy and transportation, electronic appliances and aerospace industries in recent decades. [0003] Adhesives play a role in bonding, but some substrates have a certain flexibility during use, so that when the substrate is bent later, it is easy to cause the adhesive in the middle to crack, which affects the use. In addition, for the adhesive used for outdoor substrates, long-term exposure to sunlight can easily lead to the aging of the ...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J183/04C09J175/04C09J11/06C09J11/04
CPCC09J163/00C09J11/06C09J11/04C08L2201/08C08K2003/2227C08K2003/2224C08K2201/014C08L83/04C08L75/04C08K3/22C08K5/5419C08K5/11C08K5/07C08K13/02
Inventor 李江
Owner 李江