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Bi-component flexible compound epoxy resin adhesive

A technology of epoxy resin glue and epoxy resin, which is applied in the direction of epoxy resin glue, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems that cannot be improved together, so as to avoid cracking failure, The effect of toughness improvement and toughness enhancement

Pending Publication Date: 2019-10-08
施祖新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main technical problem to be solved by the present invention is to provide a two-component flexible composite epoxy resin adhesive in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] After mixing graphene oxide and isocyanate in a mass ratio of 1:5, heating and stirring to react, filtering, washing and vacuum drying, pretreated graphene oxide is obtained; silicon dioxide and 12% hydrochloric acid by mass Mix at a ratio of 1:15, stir and react for 4 hours at a temperature of 120°C and a speed of 400r / min, and then filter to obtain an activated silica blank. The activated silica blank is washed with deionized water until the washing solution is After neutralization, and after drying for 2h at a temperature of 100℃, and then calcining at a temperature of 300℃ for 2h, activated silica is obtained. The activated silica is combined with the silane coupling agent KH-550. The mass ratio of 1:3 was mixed in the flask, and 12 times the mass of activated silica was added to the flask. The reaction was stirred for 3 hours at a temperature of 85°C and a speed of 400r / min, and then at room temperature. After standing for 3 hours, filter to obtain...

Example Embodiment

[0031] Example 2

[0032] Mix silica and 12% hydrochloric acid with a mass ratio of 1:15. Under the conditions of a temperature of 120°C and a speed of 400r / min, the reaction is stirred for 4 hours, and then filtered to obtain an activated silica blank. After the activated silica blank is washed with deionized water until the washing solution is neutral, dried at a temperature of 100°C for 2 hours, and then calcined at a temperature of 300°C for 2 hours to obtain activated silica. Activated silica and silane coupling agent KH-550 were mixed in a flask at a mass ratio of 1:3, and 12 times the mass of activated silica was added to the flask with anhydrous ethanol at a temperature of 85°C and a rotation speed of 400r Stir and react for 3h under the condition of 1 / min, and then stand still at room temperature for 3h, and then filter to obtain the aminated silica blank. After the aminated silica blank is dried at a temperature of 80℃ for 3h, the amino group is obtained. Silica, which...

Example Embodiment

[0033] Example 3

[0034] Mix silica and 12% hydrochloric acid with a mass ratio of 1:15. Under the conditions of a temperature of 120°C and a speed of 400r / min, the reaction is stirred for 4 hours, and then filtered to obtain an activated silica blank. After the activated silica blank is washed with deionized water until the washing solution is neutral, dried at a temperature of 100°C for 2 hours, and then calcined at a temperature of 300°C for 2 hours to obtain activated silica. Activated silica and silane coupling agent KH-550 were mixed in a flask at a mass ratio of 1:3, and 12 times the mass of activated silica was added to the flask with anhydrous ethanol at a temperature of 85°C and a rotation speed of 400r Stir and react for 3h under the condition of 1 / min, and then stand still at room temperature for 3h, and then filter to obtain the aminated silica blank. After the aminated silica blank is dried at a temperature of 80℃ for 3h, the amino group is obtained. For silica, m...

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Abstract

The invention discloses a bi-component flexible compound epoxy resin adhesive and belongs to the technical field of high molecular materials. A preparation method includes: sequentially weighing, by weight, 60-100 parts of mixed epoxy resin, 8-15 parts of catalyst, 12-18 parts of epoxy soybean oil, 2-5 parts of curing promoter, 2-8 parts of silane coupling agent, 10-15 parts of active diluent and20-30 parts of additive, mixing the mixed epoxy resin and the catalyst in a stirrer, sequentially adding the epoxy soybean oil, the curing promoter, the silane coupling agent, the active diluent and the additive into the stirrer, and stirring for mixing for 60-80min to obtain a component A; separately packing the component A and a component B which is a mixed curing agent to obtain the adhesive. The adhesive has excellent bonding strength, high product toughness and excellent market prospect.

Description

technical field [0001] The invention discloses a two-component flexible composite epoxy resin adhesive, which belongs to the technical field of polymer materials. Background technique [0002] Epoxy resin adhesives are a class of engineering adhesives formulated from epoxy resin base materials, curing agents, diluents, accelerators and fillers. Because of its good bonding performance, good functionality, relatively low price, and simple bonding process, it has been widely used in household appliances, automobiles, water conservancy transportation, electronic appliances, and aerospace industries in recent decades. With the continuous development of high-tech and nanotechnology, in recent years, the modification of epoxy resin has been deepened, and methods such as interpenetrating network, chemical copolymerization and nanoparticle toughening have been widely used. There are more and more varieties of performance adhesives. [0003] However, with the successive proposals of...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J191/00C09J11/04C09J11/08
CPCC08L2205/025C08L2205/03C09J11/04C09J11/08C09J163/00C08L63/00C08L91/00C08K9/02C08K9/06C08K9/04C08K3/36C08K3/042
Inventor 施祖新
Owner 施祖新
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