Method for preparing graphene nanobelt fibers with 3D solution printing technology

A graphene nanoribbon and solution technology, which is applied in the direction of graphene nanoribbon, graphene, nanotechnology for materials and surface science, etc., can solve the problems of complex process and long production cycle, and achieve simple process and high precision , high flexibility effect

Active Publication Date: 2016-10-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention is to solve the technical problems of the existing graphene fiber processing method with complex technology and long production cycle, and provides a method for preparing graphene nanoribbon fibers using 3D solution printing technology

Method used

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  • Method for preparing graphene nanobelt fibers with 3D solution printing technology
  • Method for preparing graphene nanobelt fibers with 3D solution printing technology
  • Method for preparing graphene nanobelt fibers with 3D solution printing technology

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Embodiment approach 1

[0016] Specific embodiment one: utilize 3D solution printing technique of the present embodiment to prepare the method for graphene nanoribbon fiber, carry out according to the following steps:

[0017] 1. Put the multi-walled carbon nanotubes into the mixed solution of concentrated sulfuric acid and concentrated phosphoric acid, add potassium permanganate, and react at a temperature of 55-80°C for 1-5 hours. After the reaction, add Dilute the ice solution of hydrogen oxide, then use a high-speed centrifuge to separate the solid from the liquid, and extract the solid; then filter the solid with hydrochloric acid and deionized water until it is neutral, and dry it in vacuum to obtain a graphene nanoribbon;

[0018] Two, according to the ratio of the quality of graphene nanobelts and the volume of high-purity deionized water (5~20) mg: 1mL ratio, the graphene nanobelts that step one obtains is dispersed in high-purity deionized water, obtain graphene Nanoribbon printing solution...

specific Embodiment approach 2

[0019] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the mixed solution of concentrated sulfuric acid and concentrated phosphoric acid in step 1 is that the concentrated sulfuric acid with a mass percentage concentration of 98% and the phosphoric acid with a mass percentage concentration of 85% are pressed It is formulated with a volume ratio of (9-10): 1; the others are the same as in Embodiment 1.

specific Embodiment approach 3

[0020] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the mass ratio of multi-walled carbon nanotubes to potassium permanganate in step 1 is 1: (5-6). Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a method for preparing graphene nanobelt fibers with a 3D solution printing technology, and relates to a method for preparing fibers with a 3D printing technology. The method aims at solving the technical problems that an existing graphene fiber processing method is complex in technology and long in production period, and includes the steps that 1, graphene nanobelts are prepared from multi-wall carbon nanotubes; 2, the graphene nanobelts are dispersed into high-purity deionized water to obtain a printing solution, the printing solution is printed to an ethyl acetate coagulating bath through a spraying head of a printer body of a 3D liquid printer, the cured product is taken out and dried, and the graphene nanobelt fibers are obtained. The method is simple in technology and high in accuracy, the shape and the size can be modified and adjusted, industrial production can be achieved, the tensile strength of the prepared graphene nanobelt fibers can be 90 MPa to 100 MPa, and meanwhile the graphene nanobelt fibers have high flexibility and can be used for the fields of energy storage devices, photovoltaic devices, sensors and the like.

Description

technical field [0001] The invention relates to a method for preparing fibers by using 3D printing technology, and belongs to the field of 3D printing preparation. Background technique [0002] Graphene nanoribbons are defined as graphene with a width less than 10nm while maintaining an aspect ratio greater than 10. It has more flexible and adjustable properties and greater application value than graphene. Graphene nanoribbons quickly become a hot topic in physics, chemistry and materials science because of their high mechanical strength, elasticity, thermal conductivity and extraordinary electron mobility due to their special single-layer structure, which has aroused researchers' interest in its properties and applications. Research boom. In order to make full use of the excellent properties of graphene, it is of great practical application value to prepare graphene nanoribbons into macroscopic materials. Assembling graphene nanoribbons into thin films and bulk structures ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04B33Y70/00B82Y30/00
CPCB33Y70/00C01B2204/06C01B2204/22C01B2204/26C01P2004/03
Inventor 姜再兴王明强董继东方元韦华伟谢华权钱岳宋元军黄玉东
Owner HARBIN INST OF TECH
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