One-dimensional micro-nano particle/epoxy resin composite adhesive film arranged in Z direction and preparation method thereof

A technology of micro-nano particles and epoxy resin, applied in the direction of epoxy resin glue, film/sheet adhesive, film/sheet without carrier, etc., can solve the problem of GIC improvement and achieve good effect and high efficiency , The effect of simple and easy preparation process

Active Publication Date: 2018-03-23
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Klein et al. (JAppl Polym Sci, 2011, 121: 2394 ~ 2405) used the concept of "Interleaf" to form a composite material by placing CNT / epoxy resin between layers of CF fabric, but the GIC of the material was slightly reduced. improve

Method used

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  • One-dimensional micro-nano particle/epoxy resin composite adhesive film arranged in Z direction and preparation method thereof
  • One-dimensional micro-nano particle/epoxy resin composite adhesive film arranged in Z direction and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Load 5g Fe 3 o 4 Calcium carbonate whiskers, 100g of epoxy resin with an epoxy value of 0.35 and 3g of latent curing agent dicyandiamide, mixed evenly by melt blending method, and spread the mixture evenly on the conveyor belt by coating method film.

[0028] Then, the conveyor belt passes through the magnetic field area perpendicular to the conveying direction at a linear speed of 3m / min. When the adhesive film on the conveyor belt passes through the magnetic field at 60°C, the viscosity is about 3 Pa·s, and the magnetic field strength is 0.5T. Within 1min A film in which one-dimensional micro-nano particles are arranged along the Z direction is obtained.

[0029] The oriented adhesive film passes through the solidification area along with the conveyor belt. In this area, the adhesive film is cooled and solidified under the above-mentioned magnetic field and normal temperature, and then changes to a solidified state at normal temperature to obtain a composite adhesiv...

Embodiment 2

[0033] Mix 3g of attapulgite loaded with γ-Fe2O3, 100g of epoxy resin with an epoxy value of 0.4, and 3.5g of latent curing agent dicyandiamide, using acetone as a solvent, using a solution blending method to mix evenly, and use the coating method Spread the mixture evenly into a film on the conveyor belt.

[0034] Then, the conveyor belt passes through the magnetic field area perpendicular to the conveying direction at a linear speed of 4m / min, and the solution concentration control method is used to make the adhesive film on the conveyor belt pass through the magnetic field. The viscosity is about 0.1Pa•s, and the magnetic field strength is 0.8T, 0, A film with one-dimensional micro-nano particles arranged along the Z direction was obtained within 5 minutes.

[0035] The oriented adhesive film passes through the curing zone with the conveyor belt. In this area, the solvent is volatilized under the above-mentioned magnetic field and 120°C, and becomes cured at room temperatur...

Embodiment 3

[0039] 10g of cellulose whiskers loaded with Fe3O4, 100g of epoxy resin with an epoxy value in the range of 0.45, and 4g of latent curing agent dicyandiamide, using acetone as a solvent, mixed uniformly by solution blending, and coated The mixture is evenly spread into a film on the conveyor belt.

[0040] Then, the conveyor belt passes through the magnetic field area perpendicular to the conveying direction at a linear speed of 5m / min, and the solution concentration control method is used to make the adhesive film on the conveyor belt pass through the magnetic field. The viscosity is about 1 Pa·s, and the magnetic field strength is 0.2. A film in which micro-nano particles are arranged along the Z direction.

[0041]The oriented adhesive film passes through the curing zone with the conveyor belt. In this area, the solvent is volatilized under the above-mentioned magnetic field and 100°C, and becomes cured at room temperature to obtain a composite adhesive film with a stable a...

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Abstract

The invention discloses a one-dimensional micro-nano particle/epoxy resin composite adhesive film arranged in a Z direction and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing a micro-nano rod-shaped material and epoxy resin in a mass ratio of 0.2-10 to 100 by a melting blending method or a solution blending method; uniformly spreading the mixture on a conveying belt by a coating method to form an adhesive film; enabling the viscosity of the adhesive film to be within 0.1-10 Pa.s when the adhesive film passes through a magnetic field or an electric field by a temperature regulation and control or solution concentration regulation and control method; then directionally arranging the adhesive film under the action of a magnetic field of 0.05-0.8T or an electric field of 10-100V/mm; finally, under the action of a proper temperature, enabling the adhesive film to be changed into a cured state by a method of curing reaction, or volatilization of a solvent or cooling solidification or the like, and carrying out the procedures of transferring, coiling, cutting and the like to obtain the one-dimensional micro-nano particle/epoxy resin composite adhesive film arranged in the Z direction. The preparation method has the advantages of convenient process operation, low price, simple processing operation and the like, and the composite adhesive film has a wide application prospect in improving the interlayer property of a polymer-based composite material.

Description

technical field [0001] The invention relates to the field of polymer composite material processing technology and application technology, in particular to a one-dimensional micro-nano particle / epoxy resin composite adhesive film arranged along the Z direction and a preparation method thereof. Background technique [0002] As the proportion of fiber-reinforced resin-based composite materials in the structural weight increases significantly, the application areas become more extensive, and the requirements for material toughness become more prominent. Due to the insufficient interlaminar toughness and low impact damage resistance of such composite materials, it has long been the focus of research. [0003] Since the 1970s, scholars at home and abroad have carried out related research on the interlayer performance of composite materials, and developed a variety of interlayer reinforcement methods. They can be broadly classified into two categories: (1) materials science approa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/10C09J163/00C09J11/04
CPCC08K7/08C08K9/12C08K2003/2272C08K2003/2275C08K2201/01C08K2201/011C09J7/00C09J11/04C09J163/00C09J2301/408C09J2463/00
Inventor 马传国王帅戴培邦王亚珍卢江荣张坚
Owner GUILIN UNIV OF ELECTRONIC TECH
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