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Composite adhesive and preparation method and use method thereof

A composite glue, mixing and stirring technology, applied in the field of composite glue, can solve the problems of inability to apply air leakage plugging perfectly, poor composite glue strength and wear resistance, etc. Effect

Inactive Publication Date: 2021-01-15
CHINA ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a composite glue and its preparation method and use method to solve the technical problem that the existing composite glue cannot be perfectly applied in the field of air leakage plugging due to its poor strength and wear resistance

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0037]Layered Ti3C2It is a typical MXene (transition metal carbide and (or) nitride) phase two-dimensional nanomaterial, usually by using hydrofluoric acid to corrode Ti3AlC2Material acquisition; it is widely researched and applied in the fields of energy storage, catalysis, adsorption and so on. Ti3C2It has a high elastic modulus in the direction of the reference plane, and the bending strength is higher than that of graphene of the same thickness. Single Ti3C2The elastic modulus is about 300 GPa, which is greater than most layered materials. In addition, Ti3C2The specific surface area is large, so that a large-area protective layer can be formed in a very thin coating film.

[0038]The invention combines nano Ti3C2Introduced into the modification of epoxy resin, an epoxy resin polymer alloy adhesive with curing at room temperature, good operability, high shear strength, and strong adhesion is prepared, which is used for air leakage sealing of GIS and other equipment And repair the wo...

Embodiment 1

[0049]A component: 20 parts of bisphenol A epoxy resin, 12 parts of bisphenol F epoxy resin, filler Al2O3Pretreatment particles account for 5 parts, nano Ti3C2Pretreatment powder accounted for 3 parts, pretreatment ferrosilicon powder accounted for 34 parts, talc powder (Mg3(OH)2(Si4O10)) Pretreatment particles accounted for 25 parts, silane coupling agent KH-560 accounted for 1 part; the filler powder was dispersed uniformly with an appropriate amount of acetone ultrasonically; then the bisphenol A epoxy resin and bisphenol F epoxy resin were mixed and stirred, and the stirring process Add various acetone filler suspensions to the middle side; heat it to 80℃ with a water bath, and continuously mechanically stir for 3h-4h to make the inorganic filler and epoxy resin fully dispersed and mixed.

[0050]B component: 25 parts of benzyl alcohol, 12 parts of dimethylamine, 8 parts of isophorone diamine, 2 parts of DMP-30 accelerator, 20 parts of talcum powder, nano-TiO218 parts of powder, na...

Embodiment 2

[0052]Component A: 15 parts of bisphenol A epoxy resin, 15 parts of bisphenol F epoxy resin, filler n-Al2O3Pretreatment particles account for 4 parts, nano Ti3C2Pretreatment powder accounts for 5 parts, pretreatment ferrosilicon powder accounts for 40 parts, talc powder (Mg3(OH)2(Si4O10)) Pretreatment particles accounted for 10 parts, silane coupling agent KH-560 accounted for 0.1 parts; the filler powder was dispersed uniformly with an appropriate amount of acetone ultrasonically; then the bisphenol A epoxy resin and bisphenol F epoxy resin were mixed and stirred, and the stirring process Add various acetone filler suspensions to the middle side; heat it to 80℃ with a water bath, and continuously mechanically stir for 3h-4h to make the inorganic filler and epoxy resin fully dispersed and mixed.

[0053]Component B: 20 ​​parts of benzyl alcohol, 30 parts of dimethylamine, 5 parts of isophorone diamine, 1 part of DMP-30 accelerator, 10 parts of talcum powder, nano-TiO230 parts of powder...

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Abstract

The invention discloses a composite adhesive as well as a preparation method and a use method thereof. The composite adhesive comprises a component A and a component B. The component A is a repairingagent base material component, and contains bisphenol A epoxy resin, bisphenol F epoxy resin and a component A filler, and the component A filler contains nano Ti3C2. The component B is a curing agent, and comprises benzyl alcohol, dimethylamine and a component B filler, and the component B filler contains nano Ti3C2. The invention aims to provide the composite adhesive as well as the preparationmethod and the use method thereof, so as to solve the technical problem that the existing composite adhesive cannot be applied to the field of air leakage plugging due to poor strength and wear resistance. According to the invention, Ti3C2 is introduced into epoxy resin and is organically matched with other inorganic filling materials, so that the problems of strength and wear resistance are effectively improved, and the composite adhesive is particularly suitable for air leakage sealing of metal surfaces.

Description

Technical field[0001]The invention belongs to the technical field of composite adhesives, and particularly relates to a composite adhesive and a preparation method and use method thereof.Background technique[0002]The epoxy resin-based polymer alloy repair agent has the advantages of strong adhesion, wide application range, good abrasion resistance and fatigue resistance; but the epoxy resin has a high crosslinking density after curing, showing a three-dimensional network structure. Because of its high brittleness and poor impact performance, it can only be used in occasions with low strength. In addition, the existing polymer alloy repair agents also lack wear resistance.[0003]At present, there are a lot of researches on the toughening modification of epoxy resin through liquid rubber, thermoplastic resin, inorganic nano filler, etc. Some nano Al with high surface energy2O3, SiO2The particles can be evenly embedded in the three-dimensional network structure formed after the epoxy re...

Claims

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Application Information

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IPC IPC(8): C09J163/02C09J11/04C09J11/06
CPCC09J163/00C09J11/04C09J11/06C08L2205/025C08K2201/011C08K2201/014C08K2003/2241C08K2003/2227C08L63/00C08K13/06C08K3/14C08K3/08C08K3/34C08K3/22C08K5/11C08K5/12
Inventor 乔亚霞杜宝帅罗宏健张浩索帅
Owner CHINA ELECTRIC POWER RES INST
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