Carbon nano composite material, as well as preparation method and application thereof

Abstract

The invention discloses a photothermal effect based method for preparing a carbon nano composite material. The carbon nano material (including carbon nanotubes, carbon nanofibers, graphene, carbon nanohorn and footballene) has good photothermal effect. The carbon nano material contacts with a hot melting substrate, and under the illumination effect, fusion occurs on the contact position, and the hot melting material without contact does not melt. The method provided by the invention does not require preparation of carbon nano material structure in advance, and combination on the carbon nano material and hot melting substrate is carried out directly. The method is simple, and is not restricted by the shape structure of the heating melting substrate.

Description

technical field [0001] The invention relates to a preparation method of a composite material, in particular to a carbon nanocomposite material and its preparation method and application. Background technique [0002] Carbon nanomaterials belong to the nanoscale allotropes of carbon, mainly including carbon nanotubes, carbon nanofibers, graphene, carbon nanohorns and footballenes. Due to its excellent electrical and mechanical properties, nanoscale and light weight, carbon nanomaterials have great potential in the fields of energy storage electrodes, catalytic carriers, reinforced composite materials, wave-absorbing and electromagnetic shielding materials, flame-retardant materials, microelectronics and filtration. Wide range of uses. [0003] The application of carbon nanomaterials is usually applied in the form of composite materials, that is, combined with other materials for application. At present, there are two main ways of compounding carbon nanomaterials: [0004] ...

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Problems solved by technology

[0005] Another way is to prepare the shape of the matrix material first, and then compound it. The shape of the matrix material does not change much during the compounding process. This method of preparing composite materials has more advantages in today's extremely refined industrial division of labor. , because the previous substrate manufacturers do not need to change the production method. An example of this method, such as the invention patent 201180006211.0, discloses a method of mixing graphene and adhesives on the surface of plastic products to obtain graphene composite materials. method, but this method usually requires the introduction of additional binder substances. The binder is easy to cover the carbon nanomaterials during coating, which affects the shape and surface properties of the carbon nanomaterials, thereby affecting the final performance of the composite material. And there is also the problem of falling off through adhesive bonding

[0006] Invention patent 201110082160.1 discloses a carbon nanotube structure on the surface of the substrate, which is melted and recombined by microwave heating. This method needs to prepare the carbon nanotube structure first. This structure is a carbon nanotube self-supporting structure. This method is used for recombination. The self-supporting carbon nanotube structure must be prepared first, and at the same time, there must be a relatively smooth and complete surface with a certain hardness for compounding, which is usually only suitable for surface compounding of bulk materials. For fibrous, powdery, granular, and flexible sheets shape or other finer matrix is ​​difficult to form an effective composite

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