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
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[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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