Graphene Dispersions

Graphene is a carbon layer one atom thick, which can be described as a simple or 2D structure of graphene. Graphene has an extraordinarily large specific surface and superior mechanical properties (Young's modulus of 1 TPa and intrinsic resistance of 130 GPa), offers high electronic and thermal conductivity, mobility of the charge carrier, transparency and is impermeable to gas. Due to these characteristics, graphene is used as a reinforcing additive to give composites its solidity, conductivity, etc. To give composites, the characteristics of the circulating graphene material such as strength, graphene must be dispersed in a matrix or coating applied as a thin layer on a substrate. Agglomeration, sedimentation, and dispersion in a matrix are important factors that influence the properties of the resulting material. Due to its hydrophobic nature, the preparation of a stable and highly concentrated graphene dispersion without surfactants or dispersants is a difficult task.