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A preparation method of biomimetic intelligent superhydrophobic graphene film

A graphene film, super-hydrophobic technology, applied in the direction of graphene, chemical instruments and methods, nano-carbon, etc., can solve the problem of not combining graphene multi-functional super-hydrophobic film, etc., to achieve the effect of low cost

Inactive Publication Date: 2019-07-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of a multifunctional superhydrophobic film that does not combine the characteristics of graphene itself, and provides a method for preparing a bionic intelligent superhydrophobic graphene film

Method used

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  • A preparation method of biomimetic intelligent superhydrophobic graphene film
  • A preparation method of biomimetic intelligent superhydrophobic graphene film
  • A preparation method of biomimetic intelligent superhydrophobic graphene film

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specific Embodiment approach 1

[0023] Specific embodiment one: the preparation method of a kind of bionic intelligent superhydrophobic graphene film of this embodiment comprises:

[0024] One, the preparation of graphene oxide:

[0025] Add 23mL of concentrated sulfuric acid with a mass concentration of 98% into the beaker, ice-bath, then add 1g of natural graphite, stir at a stirring rate of 300-500r / min for 10-40min, control the temperature below 5°C, add 6g of KMnO 4 , and then stirred at 900-1200r / min for 2-2.5h, then placed in a constant temperature water bath at 30-40°C, stirred at a stirring rate of 300-500r / min for 30-40min, then transferred to a constant-temperature water bath at 80°C In the process, stir at a stirring rate of 300-500r / min for 10-15min, add 80mL of distilled water, then stir at a stirring rate of 300-500r / min for 15-20min, add 60mL of distilled water, add mixed solution A, and then sonicate for 10- 15min, then centrifuged under the condition of 8000r / min for 10min, and then washed...

specific Embodiment approach 2

[0031] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in step 1, 23 mL of concentrated sulfuric acid with a mass concentration of 98% is added to the beaker, and ice-bathed for 15 min. It is the same as the first embodiment.

specific Embodiment approach 3

[0032] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 1, 1 g of natural graphite is added and stirred for 30 min at a stirring rate of 400 r / min. Others are different from Embodiment 1 or 2.

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Abstract

The invention relates to a preparation method of a bionic intelligent superhydrophobic graphene film, and aims to solve the problem that at present, no multifunctional superhydrophobic film combined with own characteristics of graphene exists. The preparation method comprises the following steps: 1, preparing graphene oxide; 2, preparing a graphene oxide emulsion; and 3, preparing the superhydrophobic graphene film. The superhydrophobic graphene film prepared by the preparation method provided by the invention has a strong water droplet adsorbing force; moreover, based on own properties of graphene, the graphene film has a self-sensing function and can sense the position of a water droplet; in addition, the graphene film has a superhigh electric heating speed at low voltage, which can reach about 18 DEG C / s; and the superhydrophobic graphene film can be applied to the field of intelligent superhydrophobic surfaces.

Description

technical field [0001] The invention relates to a preparation method of a bionic intelligent superhydrophobic graphene film. Background technique [0002] Biomimetic multi-scale superhydrophobic surface material is a multidisciplinary research field involving physics, chemistry, materials science, etc., and it has shown a rapid momentum in the development trend of international new materials. The outstanding features of its research field are the combination of basic research and applied research, and the combination of bionic concept and material preparation technology. With the continuous development of the superhydrophobic field, in order to meet the use requirements in complex environments, the construction of multifunctional intelligent superhydrophobic surfaces has become the development trend of the superhydrophobic field. As an emerging material, graphene has a variety of excellent properties, which can well meet the requirements of constructing multifunctional supe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/198C01B32/184B82Y40/00
CPCB82Y40/00C01B2204/22C01B2204/24C01P2004/02C01P2004/03
Inventor 矫维成丁国民王荣国郝立峰徐忠海刘文博杨帆赫晓东袁子健刘伟光杨双赫孔嘉珣
Owner HARBIN INST OF TECH