*1.1.3 Solution mixing*

Fabrication of Polymer composites through solution mixing is the most frequent method. Potentially applicable on a bigger scale, simplicity and the demand of equipment with not much specifications are the main reasons for the common utility of this method. In this method graphene undergoes swelling as if s suited solvent refers solubilization of a polymer. This results in ultimate rise for the curvature of a surface. One of the most demanding parameter is graphene's dispersity and solubility as well. So, the need is functionalizing graphene sheets in a way ensuring ease for dispersion in various solvents. Some composites were having much higher solubility, that results in convenient fabrication like Poly(vinyl alcohol) (PVOH)/graphene oxide (GO) [11]. Sonication or shear mixing generally leads to a homogeneous mixture in many cases, as if the solvent is organic. There must be some definite schemes that alleviates aggregation while graphene sheets are functionalized [12].
