Graphene dispersion liquid preparation device and preparation method
A technology of graphene dispersion liquid and preparation device, applied in graphene, nano-carbon and other directions, can solve problems such as affecting graphene performance, rising water temperature, easy oxidation, etc., so as to reduce thermal conductivity, reduce oxidation degree, and prevent The effect of re-condensation
Inactive Publication Date: 2020-11-20
南京牧科纳米科技有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, when using ultrasonic-assisted liquid phase exfoliation equipment to prepare graphene dispersions, ultrasonic waves will generate instantaneous high temperature and high-pressure jet streams during operation, resulting in an increase in water temperature.
Under high temperature conditions, the exfoliated graphene nanosheets are prone to oxidation, which affects the properties of graphene
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.
[0032] The applicant found that graphene material has excellent electrical, optical and physical properties, so it is widely used in solar cells, sensors, displays and other components. Due to the strong adsorption properties between graphene sheets, it is difficult to disperse. Therefore, graphene needs to be exfoliated. At present, ultrasonic-assisted liquid-phase assisted exfoliation equipment is mainly used to exfoliate graphene to prepare graphene dispersion. However, when ultrasonic waves are working, they will generate instantaneous high temperature an...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a graphene dispersion liquid preparation device and preparation method, and belongs to the technical field of ultrasonic liquid phase stripping devices. The vibration energy isabsorbed and consumed by arranging a shockproof bracket, so that the vibration amplitude of the preparation device is relieved. Meanwhile, a rotatable condensation cylinder is designed, a heat conduction assembly capable of adjusting the heat conduction efficiency is arranged between the condensation cylinder and the stripping cylinder, and when the graphene dispersion liquid is prepared, the heat conduction efficiency of the heat conduction assembly is improved, the temperature of an aqueous solution is rapidly reduced, the oxidation degree of graphene is reduced, after the graphene dispersion liquid is prepared, the heat conduction efficiency of the heat conduction assembly is reduced, the cooling efficiency of the graphene dispersion liquid is reduced, and water molecules are kept running at a high speed to prevent graphene from being condensed again. Compared with the prior art, the graphene preparation device provided by the invention has the advantages that the oxidation degreeof graphene can be reduced, and the graphene can be prevented from being condensed again.
Description
technical field [0001] The invention belongs to the technical field of ultrasonic liquid phase stripping devices, in particular to a graphene dispersion preparation device and a preparation method. Background technique [0002] Graphene is a new two-dimensional honeycomb carbonaceous material. Due to its unique structure, graphene has many excellent properties. The electron mobility of graphene (2×10 5 cm 2 · v -1 ·s -1 ), which is 100 times higher than that of silicon semiconductors. The mechanical properties of graphene are also excellent, and the Young's modulus of graphene is 1TPa measured by the tip of an atomic force microscope. Graphene also has unique optical properties. A single layer of graphene absorbs only 2.3% of white light. For graphene with less than 5 layers, the light absorption increases linearly with the number of layers. Graphene has so many excellent properties that it has been widely studied and used in solar cells, sensors, and display component...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): C01B32/19
CPCC01B32/19
Inventor 蒋连福曾海波
Owner 南京牧科纳米科技有限公司