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A kind of high-strength epoxy honeycomb glue and preparation method thereof

An epoxy honeycomb, high-strength technology, used in epoxy resin adhesives, adhesives, polymer adhesive additives, etc., can solve the problems of unsuitable honeycomb composite panels, high cost, and achieve excellent high and low temperature resistance, adhesion The effect of small strength dispersion and good flame retardant performance

Active Publication Date: 2020-09-04
上海海鹰粘接科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the cost of multifunctional epoxy resin is very high, and it is not suitable for mass production of honeycomb composite boards.

Method used

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  • A kind of high-strength epoxy honeycomb glue and preparation method thereof
  • A kind of high-strength epoxy honeycomb glue and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of high-strength epoxy honeycomb glue and preparation method thereof, the method comprises the following steps:

[0044] First component preparation method

[0045] (1) Preheat 55 kg of E44 epoxy resin, 5 kg of glycidyl epoxy resin, and 8 kg of carboxyl-terminated liquid nitrile rubber modified epoxy resin, put them into the reaction kettle, stir and heat to 100-110°C Start keeping warm under the condition.

[0046] (2) Keep stirring and put 5 kg of superfine aluminum hydroxide, 15 kg of nano-calcium carbonate, and 2 kg of hydrophobic fumed silica into the reaction kettle, and turn on the vacuum defoaming, and stir at 100-110°C 1 to 2 hours, then began to cool.

[0047] (3) After cooling to 80-85°C, add 10 kg of the remaining phosphorus-nitrogen composite flame retardant, keep it warm, and continue stirring for about 1 hour under vacuum.

[0048] ⑷Inspect the performance of the adhesive and various indicators.

[0049] (5) Cool to about 50°C for weighing and pa...

Embodiment 2

[0058] A kind of high-strength epoxy honeycomb glue and preparation method thereof, the method comprises the following steps:

[0059] First component preparation method

[0060] (1) Preheat 40 kg of E44 epoxy resin, 12 kg of E42 epoxy resin, 3 kg of butyl glycidyl ether, and 10 kg of carboxyl-terminated liquid nitrile rubber modified epoxy resin, put them into the reaction kettle, stir and When the heating reaches 100-110°C, heat preservation starts.

[0061] (2) Keep stirring and put 5 kg of ultra-fine magnesium hydroxide as a reinforcing filler, 20 kg of ultra-fine active silica powder, and 2 kg of hydrophobic fumed silica into the reaction kettle, and turn on the vacuum defoaming. Stir for 1-2 hours, then start to cool.

[0062] (3) After cooling to 80-85°C, add 10 kg of the remaining phosphorus-nitrogen composite flame retardant, keep it warm, and continue stirring for about 1 hour under vacuum.

[0063] ⑷Inspect the performance of the adhesive and various indicators. ...

Embodiment 3

[0073] A high-strength epoxy honeycomb glue, when used, the first component and the second component are mixed at a weight ratio of 2-4:1, and the first component is prepared by using the following raw materials in parts by weight: epoxy resin 30. Low-viscosity epoxy resin 5, active toughening agent 3, reinforcing filler 10, flame retardant 10, thixotropic agent 0.3, the second component is prepared from the following raw materials in parts by weight: toughening curing agent 50 , hardening curing agent 10, coupling agent 0.3.

[0074] The epoxy resin used is bisphenol S type epoxy resin. The viscosity of the low-viscosity epoxy resin is not more than 10000mPa·s at normal temperature, and the epoxy resin of pyrogallol triglycidyl ether is used. The active toughening agent is carboxyl-terminated liquid nitrile rubber, and the reinforcing filler is nano-sized alumina. The flame retardant is decabromodiphenyl ether. The thixotropic agent is fumed silica. The toughening and cur...

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Abstract

The invention relates to a high-intensity epoxy cellular adhesive and a preparation method thereof. During use of the high-intensity epoxy cellular adhesive, a first component and a second component are mixed according to a weight ratio of (2 to 4) to 1; the first component is prepared from the following constituent raw materials in parts by weight: 30 to 55 of epoxy resin, 5 to 10 of low viscosity epoxy resin, 3 to 8 of an activated toughening agent, 10 to 20 of reinforcing filler, 10 to 20 of a flame retardant and 0.3 to 3 of a thixotropic agent; the second component is prepared from the following constituent raw materials in parts by weight: 50 to 90 of a toughening curing agent, 10 to 20 of a hardening curing agent and 0.3 to 1 of a coupling agent. Compared with the prior art, the high-intensity epoxy cellular adhesive has the advantages of low adhesion strength discreteness, rigidity, toughness and the like.

Description

technical field [0001] The invention relates to an epoxy glue and a preparation method thereof, in particular to a high-strength epoxy honeycomb glue and a preparation method thereof. Background technique [0002] The excellent physical, mechanical and electrical insulation properties of epoxy resin, the bonding performance with various materials, and the flexibility of its use process are not available in other thermosetting plastics. Therefore, various coatings, composite materials, pouring potting materials, adhesives, molding materials and injection molding materials prepared from epoxy resins have been widely used in various fields of the national economy. The various performance indicators of ordinary epoxy adhesives can be modified appropriately, and they can achieve excellent performance indicators at room temperature, meeting the requirements of various application fields. However, as a polymer composite material, it is used in the composite adhesive of honeycomb B...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J11/08C09J11/04C09J11/06
CPCC08K2201/011C08K2201/014C08L2201/02C08L2201/08C08L2205/025C08L2205/03C09J11/04C09J11/06C09J11/08C09J163/00C08L63/00C08K13/02C08K2003/265C08K3/36C08K5/544C08K2003/2224C08K2003/2227C08K5/06C08K13/04C08K2003/323C08K7/08
Inventor 樊利东李厚堂刘俊
Owner 上海海鹰粘接科技有限公司
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