Adhesive and electrochemical device using adhesive

A technology of adhesives and tougheners, applied in the direction of adhesives, adhesive types, polymer adhesive additives, etc., can solve the problem of high viscosity of the system, achieve long-term high and low temperature resistance and heat and humidity shock, excellent processability, improve viscosity The effect of connection reliability

Inactive Publication Date: 2019-08-23
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of anti-fatigue epoxy resin adhesives in the prior art often results in very high viscosity due to the addition of a large amount of polymer tougheners and fillers in the system, which is not suitable for some parts of the power battery case.

Method used

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  • Adhesive and electrochemical device using adhesive
  • Adhesive and electrochemical device using adhesive

Examples

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preparation example Construction

[0024] In the preparation method of the adhesive of the present invention, the following components are uniformly mixed by weight: 100 parts of epoxy resin, 5-30 parts of hyperbranched polysiloxane containing epoxy functional groups, 5-50 parts of toughening agent, 1-100 parts of filler, 2-50 parts of amine curing agent and 0.1-1 part of curing accelerator. During the mixing process, it can be kept heated to a certain temperature.

[0025] The device according to the second aspect of the present invention comprises a fiber-reinforced composite material element and a metal element, and the fiber-reinforced composite material element and the metal element are integrated by the above-mentioned adhesive.

Embodiment 1

[0027] (1) Under stirring conditions, after adding 45.00g of γ-glycidyl etheroxypropyltrimethoxysilane, 5.15g of deionized water and 0.09g of tetramethylammonium hydroxide (20% aqueous solution) into the three-necked flask, the Reflux at a constant temperature for 2 hours to obtain solution A;

[0028] (2) Under stirring conditions, dissolve 30.89g of trimethylchlorosilane in 54.00mL of methanol to obtain solution B;

[0029] (3) Under the conditions of stirring and nitrogen protection, solution B was poured into solution A at 60° C., and after constant temperature reflux at 60° C. for 6 hours, the crude product was obtained after vacuum distillation;

[0030] (4) After the crude product is dissolved in dichloromethane, the insoluble matter is filtered off, and after vacuum distillation and vacuum drying, the hyperbranched silicone resin containing the active functional group is obtained containing the epoxy functional group;

[0031] (5) by weight, 100g bisphenol A type epox...

Embodiment 2

[0033] By weight, 100g cycloaliphatic epoxy resin, the hyperbranched silicone resin containing epoxy functional group prepared by step (4) in 30g embodiment one, 50g carboxylated nitrile rubber, 100g clay, 2g polyethylene polyamine Mix evenly with 0.1g of 2,4,6-tris(dimethylaminomethyl)phenol at a temperature of 90°C to obtain a high-performance epoxy resin structural adhesive.

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Abstract

The invention relates to an adhesive and an electrochemical device using the adhesive. The adhesive mainly contains an epoxy resin, and hyperbranched polysiloxane containing epoxy functional groups ata weight ratio of 100 : (5-30). According to the adhesive, the hyperbranched polysiloxane containing epoxy functional groups is introduced into the epoxy resin structure adhesive, so that epoxy resinfatigue resistance is improved without loss of epoxy resin viscosity, and the bonding reliable effect on composite materials with metal inserts is achieved.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to an adhesive and an electrochemical device for the adhesive. Background technique [0002] Electric vehicles, as a new type of environmentally friendly vehicles, are the future development trend. But for a long time, electric vehicles have been subject to technical bottlenecks such as cost and short mileage. With the advancement of technology, the most critical component of electric vehicles, the power battery box, has also been technologically innovated. From the aluminum alloy-based power battery box to the current fiber-reinforced resin-based composite box, the capacity, life and cost of the battery are constantly being optimized. However, when the fiber composite material replaces the metal structural parts, in order to prevent the battery box from being in a dangerous state during use, the adhesive used for the structural bonding function of the key components of the power ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/08C09J11/04C08G77/18
CPCC08G77/18C08K2003/265C08L2203/20C08L2205/025C08L2205/03C08L2205/06C09J11/04C09J11/08C09J163/00C08L83/06C08L81/04C08K3/34C08L13/00C08K3/346C08K3/26
Inventor 张文丛马林
Owner CONTEMPORARY AMPEREX TECH CO
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