Abstract
The article analyzes the methods of obtaining few-layer and multilayer graphene in machines where the main working body is a smooth rotating drum.Possible mechanisms for separating crystalline graphite particles are considered.The method of graphite exfoliation only due to shearing forces is viewed as the most economical one.A new design of the rod mill where only shearing forces affect graphite particles was introduced.The results of experimental studies on the influence of geometrical and mode parameters on the intensity of the shear exfoliation process are presented.The dependence for calculating the performance of a rod drum mill was obtained.A parametric series of mills with a capacity for few-layer and multilayer graphene from 0.077 to 0.884 g/h was developed.