What Is The Principle And Purpose Of Ultrasonic Graphene Dispersion System

What is the principle and purpose of ultrasonic graphene dispersion system

Inkene is a thin, hard, two-dimensional material made of a single layer of carbon atoms in the world. Its very good strength, flexibility, electrical conductivity, thermal conductivity, and optical properties play important roles in various fields. In the natural state, there is no single-layer graphene material, which generally exists as three-dimensional graphite. It is very important to extract single-layer graphene from graphite.

Ultrasonic graphene dispersion is also called ultrasonic graphene peeling. The graphite oxide reduction method is used in conjunction with ultrasonic vibration to effectively increase the distance between graphite oxide layers. Graphite oxide with a large interval is not only beneficial for other molecules and atoms to interpose between layers to form graphite oxide. The intercalation composite material can be easily peeled into a single layer of graphite oxide, laying a foundation for the further preparation of single layer graphene.

Principle of ultrasonic graphene dispersion

Ultrasonic graphene dispersing equipment uses the cavitation of ultrasonic waves to disperse agglomerated particles. It puts the particle suspension (liquid) to be processed into an ultra-strong sound field and processes it with appropriate ultrasonic amplitude. Under the additional effects of cavitation, high temperature, high pressure, microjet, strong vibration, the distance between molecules will continue to increase, eventually leading to molecular fragmentation and formation of a single molecular structure. This product is especially effective for dispersing nanomaterials (such as carbon nanotubes, graphene, silica, etc.).

Graphene dispersion purpose

There are a large number of graphite materials in nature, and 1 millimeter thick graphite contains approximately 3 million layers of graphene. Single-layer graphite is called graphene, which does not exist in a free state, and all exist in the form of graphite sheets laminated with multiple layers of graphene. Because the interlayer force of the graphite sheet is relatively weak, the layer can be peeled off by external force to obtain a single-layer graphene with a thickness of only one carbon atom.

Ultrasound assisted method

The ultrasonic graphene dispersion system uses the ultrasonic-assisted Hummers method to prepare graphene oxide. It uses a liquid as a medium and adds high-frequency ultrasonic vibration to the liquid. Since ultrasound is a mechanical wave, it is not absorbed by the molecules and causes the vibrational motion of the molecules during the propagation process. Under the effect of cavitation, that is, high temperature, high pressure, micro-jet, strong vibration and other additional effects, the distance between molecules increases the average distance due to vibration, eventually leading to molecular fragmentation. The distance between graphite oxide layers can be increased more effectively, and with the increase of the ultrasonic power, the interval between the obtained graphite oxide layers is increasing.

The pressure released instantly by the ultrasonic wave destroys the van der Waals force between the graphene layer and the layer, making it more difficult for graphene to cluster together. Graphite oxide with a large interlayer distance is not only beneficial for other molecules, atoms and other intercalated layers to form a graphite oxide intercalation composite material, but also is easily peeled into a single layer of graphite oxide, laying a foundation for the further preparation of single layer graphene.

Ultrasonic dispersion equipment can be used for the dispersion and homogenization of graphene, ink coatings, etc .; petroleum emulsification; traditional Chinese medicine extraction processing; cell, ballast water crushing, disinfection treatment; accelerated reaction of chemical raw materials