Graphene is a new material of great interest with unique physical, chemical, electrical and mechanical properties that are used in a wide range of applications. However, there are still some challenges in the preparation and application of graphene, such as aggregation and solubility with liquids such as water, which seriously affect its application. The advent of graphene aqueous dispersions has solved these problems and extended the scope of graphene applications.

Graphene aqueous dispersions are specially treated to coat the surface of graphene with a layer of surfactant, thus enabling it to form a stable dispersion with liquids such as water. These aqueous dispersions not only maintain the special properties of graphene, but also meet the needs of various fields of application. The following are a few typical applications of graphene aqueous dispersions:

I. Application of graphene aqueous dispersions in the field of surface coatings

Graphene aqueous dispersion is an excellent additive for surface coatings, which can significantly improve the wear resistance and mechanical strength of polymer coatings. In addition, graphene aqueous dispersions can also be used to prepare conductive coatings and anti-corrosion coatings, etc.

Applications of graphene aqueous dispersions in the field of materials science

Graphene aqueous dispersions have been widely used in the field of materials science. For example, graphene aqueous dispersions can be used with other materials to produce composite materials with excellent properties. Graphene aqueous dispersions can also be used as electrode materials, which are widely used in electronic devices such as supercapacitors due to their high specific surface area and electrical conductivity.

Application of graphene aqueous dispersions in biomedical field

Graphene aqueous dispersions have good biocompatibility and biological activity, and can be used as new materials in the biomedical field. For example, graphene aqueous dispersions can be used to produce biosensors with good sensing properties, which can be used to detect tumour markers and other biomolecules. In addition, graphene aqueous dispersions can also be used as drug release control materials to regulate the release rate and time of drugs.

Graphene aqueous dispersions are promising as novel materials for a wide range of applications. Although their properties and applications vary from field to field, they all bring to bear the unique properties of graphene, bringing an increasingly important role to the fields of materials science, surface coatings and biomedicine. As the technology is developed and refined, it is expected that more extensive application scenarios will be developed.