Method for preparing high-strength high-conductivity carbon nanometer material film

A technology of carbon nanomaterials and material films, which is applied in the field of multifunctional material preparation, can solve the problems of poor orientation of carbon nanotubes, high production costs, and low performance, and achieve simple and easy preparation methods, industrialization, and high electrical conductivity rate effect

Active Publication Date: 2018-06-15
绍兴兆丽新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The magnetic field suction filtration method is based on carbon nanotube dispersion liquid, so carbon nanotubes need to be physically or chemically treated during the dispersion process, but this will significantly reduce the performance of carbon nanotubes. This method is only suitable for carbon nanotubes with small aspect ratios. Nanotubes, the obtained carbon nanotubes have poor orientation and low performance. The rolling method and pulling method are based on the carbon nanotube array for certain processing. The size of the carbon nanotube film is limited by the size of the array and the size of the array Low production efficiency and high production cost

Method used

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  • Method for preparing high-strength high-conductivity carbon nanometer material film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 prepares carbon nanotube / graphene composite film, comprises the steps:

[0032] (1) 0.1wt% uniformly dispersed graphene suspension (Weihai Power High-Tech Carbon Material Co., Ltd.) and 0.1wt% uniformly dispersed carbon nanotube dispersion (Suzhou Jiedi Nano Technology Co., Ltd.) according to the mass ratio = 5 : 5 mixed, deposited by Buchner funnel suction filtration, the suction filtration process control pressure is 0.5MPa, at room temperature to dry naturally, to obtain a carbon nanotube / graphene composite film with a thickness of 100.61 microns.

[0033] (2) Using a flat vulcanizer to pressurize

[0034] S1: Use PE film to prepare a 15cm×15cm transparent square container, place the square container in the middle of the upper and lower platens of the flat vulcanizer, and put 30ml of acetone solution into the square container.

[0035] S2: Cut the carbon nanotube graphene composite film obtained in step (1) to a size of 5 cm long × 5 cm wide, and cut A4...

Embodiment 2

[0039] Embodiment 2 prepares carbon nanotube / graphene composite film, comprises the steps:

[0040] (1) Mix the uniformly dispersed graphene suspension (Weihai Weili Gaoke Carbon Material Co., Ltd.) with the uniformly dispersed carbon nanotube dispersion (Suzhou Jiedi Nano Technology Co., Ltd.) according to the mass ratio = 5:5, and pass through the cloth The deposition was carried out by suction filtration through a Scherner funnel at a pressure of 1 MPa, and dried naturally at room temperature to obtain a carbon nanotube / graphene composite film with a thickness of 100.61 microns. Wherein, the concentrations of the graphene suspension and the carbon nanotube dispersion are respectively 0.5 wt % and 0.5 wt %.

[0041] (2) Pressurization by rolling method

[0042] The schematic diagram of the pressurization process is shown in figure 1 shown.

[0043] S1: Use an electronic balance to weigh out 30 g of acetone solution, and place it in the spray container 1 .

[0044] S2: maki...

Embodiment 3

[0048] Embodiment 3 prepares carbon nanotube / graphene composite film, comprises the steps:

[0049] (1) Mix the uniformly dispersed graphene suspension (Weihai Weili Gaoke Carbon Material Co., Ltd.) with the uniformly dispersed carbon nanotube dispersion (Suzhou Jiedi Nano Technology Co., Ltd.) according to the mass ratio = 1:10, and pass through the cloth Deposit by funnel suction filtration, the pressure is 1MPa, and dry naturally at room temperature to obtain a carbon nanotube / graphene composite film with a thickness of 130.6 microns; wherein, the concentrations of the graphene suspension and the carbon nanotube dispersion are respectively 0.5wt% , 1 wt%.

[0050] (2) Using a flat vulcanizer to pressurize

[0051] S1: Use PE film to prepare a transparent square container of 15cm×15cm, place the square container in the middle of the upper and lower platens of the flat vulcanizer, and put 30ml of ethanol solution in the square container.

[0052] S2: Cut the carbon nanotube...

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Abstract

Provided in the invention is a method for preparing a high-strength high-conductivity carbon nanometer material film. The preparation method comprises the following steps that: a thin film is preparedby using a suction filtration method; a carbon nano-material solution is added to a piece of filter paper for suction filtration and a film with the thickness of30 to 800 microns is prepared; the obtained film is immersed into a lubricating agent, pressurization is carried out during the immersion process and the film is kept to be in a wet state during the pressurization process to obtain a high-strength high-conductivity carbon nanometer material film, wherein the pressure intensity is controlled to be 0.5-3 MPa and the temperature is at 30-70 DEG C during the pressurization process and thepressurization effect time is 0.1 to 10 hours. According to the invention, under the dual effects of the pressure and the lubrication effect of the lubricating agent, densification of the carbon nanometer material film is realized and the high-strength high-conductivity conductive film is obtained; and the specific intensity is 100-500 MPa and the conductivity is 1000-10000 S / m. The method havingcharacteristics of low cost, simplicity, and obvious effect has borad application prospects in the industrial field.

Description

technical field [0001] The invention belongs to the field of multifunctional material preparation, and in particular relates to a preparation method of a high-strength and high-conductivity carbon nanometer material film. Background technique [0002] Since CNTs (carbon nanotubes) were discovered by Iijima in Japan in 1991, due to their excellent mechanics, high electrical conductivity, unprecedented thermal properties and other special physical properties, they have attracted extensive attention and thinking. With the development of the economy, there is an increasing demand for smart textiles and wearable devices. Carbon nanotube yarns and films made of carbon nanotubes are used in fiber artificial muscles, supercapacitors and aerospace, energy harvesting and storage, thermal interface management, etc. [0003] At present, the basic methods for preparing carbon nanomaterial films such as graphene film, carbon nanotube film, and oriented graphene / carbon nanotube composite ...

Claims

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Application Information

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IPC IPC(8): H01B1/04H01B13/00C01B32/194C01B32/156C01B32/168C01B32/15
CPCC01B2202/36H01B1/04H01B13/00
Inventor 李芳丽张万虎李圆圆刘玮许福军
Owner 绍兴兆丽新材料科技有限公司
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