Water-based graphene dispersion liquid and preparation method thereof

A technology of graphene dispersion liquid and nano-graphene, which is applied in the direction of graphene, single-layer graphene, chemical instruments and methods, etc., can solve the problems of complicated preparation method and poor dispersion uniformity, and achieve simple preparation process, mild reaction, Effects in a wide range of applications

Pending Publication Date: 2019-07-16
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of this, the object of the present invention is to propose a water-based graphene dispersion and preparation method thereof, to solve the shortcomings of the prior art in the prior art, such as complex preparation methods of the water-based graphene dispersion and poor dispersion uniformity

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  • Water-based graphene dispersion liquid and preparation method thereof
  • Water-based graphene dispersion liquid and preparation method thereof

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Embodiment Construction

[0025] For the following, through the description of the examples, the specific implementation of the present invention, such as the manufacturing process involved, the operation and use method, etc., will be described in further detail, so as to help those skilled in the art to have a more complete concept of the invention and the technical solution of the present invention. , accurate and in-depth understanding.

[0026] The raw materials used in the examples of the present invention are all purchased from the market.

[0027] The nanometer graphene powder multilayer structure has 3-10 layers.

[0028] In order to solve the disadvantages of complicated preparation method and poor dispersion uniformity of the water-based graphene dispersion liquid in the prior art. A water-based graphene dispersion provided by an embodiment of the present invention includes nano-graphene powder with a mass concentration of 0.1-3wt.%, and a surface modifier with a mass concentration of 20-300...

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Abstract

The invention discloses a water-based graphene dispersion liquid and a preparation method thereof, and belongs to the technical field of graphene modification. The water-based graphene dispersion liquid is a durable stable dispersion liquid prepared by taking single-layer and/or double-layer and/or multi-layer nano graphene as a raw material to carry out a reaction with a chelating-type titanate under the action of ultrasonic waves and mechanical stirring. The water-based graphene dispersion liquid prepared by the preparation method is good in dispersion liquid stability, and no sedimentationphenomenon occurs when the dispersion liquid is placed for 30 days; the dispersion liquid is low in viscosity and good in liquidity, the dispersion medium is water, and no polymer is added or generated, so that the application field is wide; the preparation process of the dispersion liquid is simple, the reaction is mild, the modification time is short, and industrial application is easier; the dispersion liquid is an environment-friendly product, no harmful impurities are introduced in the preparation process, and a used coupling agent can be wound or bonded with a composite material to forma whole substance in subsequent processing.

Description

technical field [0001] The invention relates to the technical field of graphene modification, in particular to a water-based graphene dispersion and a preparation method thereof. Background technique [0002] As a SP2 hybrid two-dimensional planar structure, graphene has intrinsic thermal conductivity that other materials cannot match, and because the edge structure is relatively complete, its thermal conductivity is far superior to that of graphene oxide; graphene also has a low friction coefficient and a thermal expansion coefficient. Excellent properties such as negative values. In the preparation of rubber and fiber-reinforced rubber composite materials, the appropriate amount of graphene can conduct heat to rubber products better, further save energy and reduce consumption and improve production efficiency; for rubber and fiber-reinforced rubber products in dynamic operating environments, By reducing frictional heat generation, especially high-temperature frictional he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/194
CPCC01B32/194C01B2204/02C01B2204/04C01B2204/28
Inventor 谢艳霞邹梨花王宗乾周业昌蔡新娟高俊
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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