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Preparation method of composite nano carbon material and composite nano material

A nano-carbon material and composite technology, applied in the direction of nano-carbon, carbon nanotubes, nanotechnology, etc., can solve the problems of poor conductive network and low production efficiency, and achieve the goal of increasing yield, improving dispersion, and improving agglomeration Effect

Pending Publication Date: 2022-03-18
INNOV-CARBON TECH LTD
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  • Abstract
  • Description
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Problems solved by technology

[0005] In order to avoid the deficiencies of the prior art, the present invention designs a method for preparing composite nano-carbon materials that improve the yield, purity and quality of carbon nanotubes in nano-carbon materials and improve the linear separation of carbon nanotubes. Type nanomaterials to solve the problems of low production efficiency and poorly constructed conductive network of nanocarbon materials in the prior art

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  • Preparation method of composite nano carbon material and composite nano material
  • Preparation method of composite nano carbon material and composite nano material
  • Preparation method of composite nano carbon material and composite nano material

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preparation example Construction

[0101] After the research of the inventors, it was found that the existing catalysts for preparing nano-carbon materials cannot be applied to microwave treatment, and microwave catalysis is used more and more in material preparation. For carbon chain polymers such as plastics with complex structures , simple one-step microwave treatment is difficult to achieve high yield of carbon nanomaterials, and microwave power has a great influence on the yield, purity and quality of carbon nanomaterials, the yield of carbon nanomaterials by multi-step microwave treatment with equal power Improvement is also very limited, and high-power multi-step microwave treatment also easily causes the purity or quality of nano-carbon materials to be adversely affected. Therefore, the present invention provides a method such as Figure 1 to Figure 6 The preparation method of the composite nano-carbon material and the composite nano-material include: preparing a catalyst; mixing the raw material and the...

Embodiment 1

[0175] Preparation of multi-walled carbon nanotubes by catalytic carbonization of polyethylene plastics with carbon black (Super P)-supported iron-based catalysts:

[0176] In this example, carbon black (Super P) is used as a carrier, and metal iron is loaded on carbon black by impregnation method. The loading amount of iron is 50%, and the mass ratio of iron and carbon in the finally obtained catalyst powder is 1:1. .

[0177] In this embodiment, polyethylene is used as a raw material to prepare carbon nanotubes, and a composite carbon nanomaterial of carbon nanotubes and carbon black is prepared through five-stage microwave treatment. The schematic diagram of the process flow of this embodiment is as follows figure 1 As shown, the specific method is as follows:

[0178] (1) Fully mix carbon black (Super P) and iron precursor in distilled water according to the required ratio; calcinate at 350 degrees Celsius for 3 hours under an inert atmosphere of argon; The catalyst is s...

Embodiment 2

[0186] In this embodiment, carbon black (Super P) is used as a carrier, and metallic nickel is carried on the carbon black by impregnation.

[0187] In this embodiment, polyethylene is used as a raw material to prepare carbon nanotubes, and the specific method is as follows:

[0188] (1) Dissolve 49.55g of nickel nitrate in water, then disperse 10g of carbon black (Super P) in the nickel nitrate solution by stirring to form a suspension. After drying, it was calcined at 350 degrees Celsius for 3 hours under an inert atmosphere; after the calcination was completed, the sample was subjected to reduction treatment in a 5% H2 / Ar environment, and the reduction treatment condition was 650 degrees Celsius for 6 hours, and finally collected Black powder of nickel catalyst.

[0189] (2) The first stage of microwave treatment: the 19.89g nickel-carbon black catalyst and 20g polyethylene collected are put into a microwave reactor after being physically and mechanically mixed, and after ...

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Abstract

The invention provides a preparation method of a composite nano carbon material and a composite nano material. The preparation method comprises the following steps: preparing a catalyst; mixing the raw materials with a catalyst to form a material; and carrying out n-section microwave treatment on the prepared material. According to the preparation method of the composite nano carbon material and the composite nano material provided by the invention, the carbon black is adopted as a substrate, in-situ growth of the carbon nano tube is realized through the supported metal, the composite nano carbon material of the carbon nano tube and the carbon black is finally prepared, and the dispersity of the carbon nano tube powder is effectively improved; according to the present invention, the agglomeration phenomenon during the carbon nano-tube preparation process is improved, the good point-line combined conductive network is constructed, the multi-section gradient power microwave treatment is adopted, and each section of the microwave treatment can well join and cooperate, such that the yield, the purity and the quality of the carbon nano-tubes are significantly improved, and the carbon nano-tubes are effectively dispersed in the carbon black particles.

Description

technical field [0001] The invention relates to the technical field of carbon material preparation, in particular to a method for preparing a composite nano-carbon material and the composite nano-material. Background technique [0002] Carbon nanocomposites are ideal electrode materials, composite materials, photoconductive materials, magnetic materials, and adsorption materials; they can be widely used in aerospace, electric vehicles, and intelligent manufacturing. Both carbon nanotubes and carbon black are widely used as excellent conductive materials due to their unique morphology and chemical and physical properties. Carbon atoms on carbon nanotubes are hybridized by sp2 to form C=C covalent bonds and form a wide range of delocalized π bonds. Due to the significant conjugation effect, carbon nanotubes have unique and excellent electrical and thermal conductivity and corrosion resistance properties, and stable chemical properties. Strong thermal stability and good adsorp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/15C01B32/16C01B32/162B82Y30/00B82Y40/00
CPCC01B32/15C01B32/16C01B32/162B82Y30/00B82Y40/00C01B2202/06C01B2202/30C01B2202/36
Inventor 张兆熙介翔宇
Owner INNOV-CARBON TECH LTD
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