Fiber reinforced composite as well as preparing method and application thereof

A composite material and fiber-reinforced technology, which is applied in the field of fiber-reinforced composite materials and carbon fiber-reinforced composite materials, can solve problems affecting the mechanical properties of composite material parts, complex and difficult operations, and dispersion of carbon nanotubes, and achieve excellent electrical conductivity and heat generation. Wide application prospects and the effect of improving electrical and thermal conductivity

Active Publication Date: 2017-05-17
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method needs to solve the dispersion problem of carbon nanotubes. The dispersion problem not only affects the electrothermal characteristics, but also affects the mechanical properties of composite parts.
In addition, in this

Method used

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  • Fiber reinforced composite as well as preparing method and application thereof
  • Fiber reinforced composite as well as preparing method and application thereof
  • Fiber reinforced composite as well as preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] An aspect of the embodiments of the present invention provides a method for preparing a fiber reinforced composite material, which includes:

[0021] Provide a fiber product, the fiber product comprising a fiber fabric and a resin compounded with the fiber fabric, the resin including a thermosetting resin and / or a thermoplastic resin;

[0022] Stacking at least one of the fiber products and at least one carbon nanotube film to form a composite material preform;

[0023] The composite material preform is placed in a vacuum forming device, and then a vacuum is drawn, and then an electric current is applied to at least one carbon nanotube film in the composite material preform to cause the at least one carbon nanotube film to generate heat, thereby causing all The composite material preform is heated and solidified to form the fiber reinforced composite material.

[0024] Further, the carbon nanotube film includes a carbon nanotube film prepared by a chemical vapor deposition meth...

Example Embodiment

[0061] Embodiment 1: The method for preparing a fiber reinforced resin composite material involved in this embodiment specifically includes the following steps:

[0062] 1) Select T700, 12K carbon fiber epoxy resin unidirectional prepreg (purchased from Yixing Hengya Carbon Fiber Technology Co., Ltd., epoxy resin content is 60%) and cut into 5cm×4cm, where the carbon fiber is along the 5cm long side direction.

[0063] 2) Use floating catalytic chemical vapor deposition carbon nanotube film (purchased from Jade Nano Technology Co., Ltd., shrink and densify with ethanol, thickness 3-8μm, pure carbon nanotube film electric heating performance see figure 2 ), cut into 5cm×4cm, wherein the orientation direction of the carbon nanotube film is along the 5cm long side direction. Cut a 5mm wide copper foil as an electrode, and use conductive silver glue to paste and fix it on both ends of the carbon nanotube film, perpendicular to the carbon nanotube orientation direction and parallel to t...

Example Embodiment

[0066] Embodiment 2: The method for preparing a fiber-reinforced resin composite material related to this embodiment specifically includes the following steps:

[0067] 1) T700, 12K unidirectional carbon fiber prepreg cloth (purchased from Yixing Hengya Carbon Fiber Technology Co., Ltd., epoxy resin content of 60%) is selected and cut into 5cm×5cm.

[0068] 2) Select the floating catalytic chemical vapor deposition carbon nanotube film (purchased from Jade Nano Technology Co., Ltd., use ethanol to shrink and densify, the thickness is 3-8μm), and perform laser etching treatment. The treatment method is: The tube film is laid flat on the stage, and the laser is adjusted to focus on the surface of the carbon nanotube film. The focused laser can etch circular perforations on the carbon nanotube film. The laser intensity is adjusted by adjusting the current. Control, the diameter of the circular holes is 150μm, the minimum distance between the centers of the circular holes is 150μm, the...

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Abstract

The invention discloses a fiber reinforced composite as well as a preparing method and an application thereof. The preparing method comprises: providing a fiber product, wherein the fiber product comprises fiber fabric and resin combined with the fiber fabric, and the resin comprises thermosetting and/or thermoplastic resin; arranging at least one fiber product and at least one carbon nanotube film layer in an overlapping manner so as to from a composite premix; and placing the composite premix in a vacuum molding device, then pumping vacuum, charging the at least one carbon nanotube film in the composite premix with current, enabling the at least one carbon nanotube film in the composite premix to produce heat, and accordingly heating and curing the composite premix so as to form the fiber reinforced composite. By the technology of the invention, energy consumption in the preparing process of the fiber reinforced composite can be effectively reduced, the energy converting efficiency is increased, and the molding cycle is shortened; and at the same time, the fiber reinforced composite has great electricity and heat conducting properties and wide application prospects.

Description

technical field [0001] The invention relates to a fiber-reinforced composite material, in particular to a carbon fiber-reinforced composite material, its preparation method and application, and belongs to the field of material science. Background technique [0002] Fiber-reinforced composite materials have the advantages of low density, high specific strength / specific stiffness, corrosion resistance, designable performance, integrated molding, and good fatigue resistance. They are widely used as structural materials and anti-ablation materials. Aerospace, energy, automobiles, sports and fitness equipment and other fields have a very wide range of applications. [0003] At present, the most commonly used fiber-reinforced composite material preparation method is to use autoclave molding, that is, to cut the fiber resin prepreg into a certain size, and lay layers in a certain way to prepare a composite material prefabricated body, and then prefabricate the composite material T...

Claims

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Application Information

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IPC IPC(8): B29C70/44
CPCB29C70/443
Inventor 吕卫帮徐小魁曲抒旋巩文斌李清文
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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