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A carbon fiber resin matrix composite material with multi-scale rapid self-assembly interface and preparation method thereof

A carbon fiber resin-based, composite material technology, applied in the field of composite materials, can solve the problems of low preparation efficiency and weak interface bonding, and achieve the effects of simple operation, improved interface performance, and accelerated graft reaction rate.

Active Publication Date: 2021-08-10
BEIJING UNIV OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention prepares a carbon fiber reinforcement by alternately immersing the carbon fiber reinforcement in a nanoparticle quaternary ammonium salt solution and a high-polarity multifunctional epoxy resin solution, and inducing the rapid layer-by-layer self-assembly of the nanoparticle on the surface of the carbon fiber reinforcement under microwave irradiation. A multi-scale carbon fiber reinforcement with uniform distribution of surface nanoparticles and controllable grafting amount; a stepwise power-increasing microwave curing process is used to promote the full reaction of the multi-scale carbon fiber reinforcement and the resin matrix, and the carbon fiber resin matrix composite material is prepared by rapid curing , to achieve a smooth transition between the multi-scale carbon fiber reinforcement and the resin matrix modulus, and solve the problems of low preparation efficiency and weak interface bonding of traditional thermosetting carbon fiber resin matrix composites. This method can be used in aerospace, automotive industry and sporting goods, etc. Application field of high performance composite materials

Method used

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  • A carbon fiber resin matrix composite material with multi-scale rapid self-assembly interface and preparation method thereof
  • A carbon fiber resin matrix composite material with multi-scale rapid self-assembly interface and preparation method thereof
  • A carbon fiber resin matrix composite material with multi-scale rapid self-assembly interface and preparation method thereof

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Effect test

Embodiment 1

[0024] The nanoparticles are made of carboxylated carbon nanotubes, the quaternary ammonium salt solution is made of epoxypropyl alkyl dimethyl ammonium chloride, the carbon fiber reinforcement is made of T 800H-12K from Toray Corporation of Japan, and the epoxy resin is made of diisopropylidene benzene Supported tetraglycidyl amine, polyether amine D-400 is used as amine curing agent, and phthalate epoxy resin is used as epoxy reactive diluent. The epoxy resin, amine curing agent and epoxy reactive diluent were dried at 100°C for 2 hours respectively, cooled to 30-40°C, and the resin matrix was prepared according to the ratio of parts by mass of 100:40:20. Prepare a quaternary ammonium salt solution with a concentration of 0.1%, adjust the ratio of the quaternary ammonium salt solution to nanoparticles to 100:0.1, and after the ultrasonic dispersion is uniform, put the carbon fiber reinforcement into the solution and perform microwave irradiation. The irradiation power was 40...

Embodiment 2

[0029] Aminated carbon nanotubes are used for the nanoparticles, 3-tetradecyloxy-2-hydroxypropyltriethylammonium chloride is used for the quaternary ammonium salt solution, T 800H-12K of Toray Corporation of Japan is used for the carbon fiber, epoxy resin The compound of bisresorcinol acetal tetraglycidyl ether and bisphenol S diglycidyl ether is used, and the compound of low viscosity polyamide V-125 and polyether amine D-400 is used as the amine curing agent. The diluent is a compound of diglycidyl methene tetrahydrophthalate and phthalate epoxy resin. The epoxy resin, amine curing agent and epoxy reactive diluent were dried at 100°C for 2 hours, cooled to 30-40°C, and the resin matrix was prepared according to the ratio of parts by mass of 100:30:30. Prepare a quaternary ammonium salt solution with a concentration of 0.2%, and adjust the ratio of the quaternary ammonium salt solution to nanoparticles to 100:0.05. After the ultrasonic dispersion is uniform, put the carbon fi...

Embodiment 3

[0034] Hydroxylated carbon nanotubes are used for nanoparticles, and N,N-bis(dodecyldimethyl)-3-aza-1,5-pentanediamine dichloride is used for quaternary ammonium salt solution, which is highly polar and multifunctional The epoxy resin adopts fluorine-containing triglycidyl p-aminophenol, the carbon fiber adopts T 800H-12K from Toray Corporation of Japan, and the epoxy resin adopts diisopropylidene phenylene tetraglycidylamine and bis-resorcinol acetal Tetraglycidyl ether compound, the amine curing agent is a compound of 3,5-diethyl-2,4-toluenediamine and low-viscosity polyamide V-125, and the epoxy reactive diluent is internal methine Diglycidyl tetrahydrophthalate, epoxy resin, amine curing agent and epoxy reactive diluent were dried at 100°C for 2 hours, cooled to 30-40°C, according to the mass parts ratio of 100:30: 30 ratio to prepare the resin matrix. Prepare a quaternary ammonium salt solution with a concentration of 0.3%, and adjust the ratio of the quaternary ammonium...

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Abstract

The invention belongs to the field of composite materials, and proposes a carbon fiber resin-based composite material with a multi-scale rapid self-assembly interface and a preparation method thereof. By alternately immersing carbon fiber reinforcements in nanoparticle quaternary ammonium salt solutions and high-polarity multifunctional epoxy resin solutions, and inducing rapid layer-by-layer self-assembly of nanoparticles on the surface of carbon fiber reinforcements under microwave irradiation, a surface Multi-scale carbon fiber reinforcement with uniform distribution of nanoparticles and controllable grafting amount; a stepwise power-increasing microwave curing process is used to promote full infiltration and interfacial reaction between the multi-scale carbon fiber reinforcement and the resin matrix, and a carbon fiber resin matrix composite is prepared by rapid curing material, which realizes the smooth transition of multi-scale carbon fiber reinforcement and resin matrix modulus, and solves the problems of low preparation efficiency and weak interface bonding of traditional thermosetting carbon fiber resin matrix composite materials. This method can be used in aerospace, automotive industry and sporting goods and other high-performance composite materials applications.

Description

technical field [0001] The invention belongs to the field of composite materials, and mainly relates to a carbon fiber resin-based composite material with a multi-scale rapid self-assembly interface and a preparation method thereof. Background technique [0002] Carbon fiber resin matrix composites are widely used in aerospace, national defense and military, sports and other fields because of their light weight and high strength. As an anisotropic material, carbon fiber reinforced body mainly exhibits excellent mechanical properties in the axial direction, while its mechanical properties in the transverse direction and between layers are significantly lower. It presents a large number of "turbulent graphite" structures, resulting in fewer surface active functional groups, and poor wettability with the resin matrix, so the interface between the carbon fiber reinforcement and the resin matrix is ​​weaker. A large number of studies have shown that the microscopic interface bet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K9/04C08K3/04C08K7/06C08K9/00C08J5/06
CPCC08J5/06C08J2363/00C08K7/06C08K9/00C08K9/04C08K2201/011C08K3/041
Inventor 贾晓龙马文丽罗锦涛孟柳还献华杨小平
Owner BEIJING UNIV OF CHEM TECH