Abstract: The invention described herein provides a dry graphene powder composition comprising pristine graphene flakes, wherein the pristine graphene flakes are non-covalently functionalised with polymeric amphiphilic molecules and wherein the dry graphene powder composition is capable of forming a stable homogeneous dispersion in aqueous or alcoholic media, in the absence of free dispersants or stabilizers, as well as methods for producing same, and the use thereof in graphene inks, for 2D and 3D printing, for production of flexible circuits, electrodes, electrocatalysts, for fabrication of nanocomposites and for wet-spinning of pristine graphene fibers.

Abstract: A method and composition for treating a weathered low traffic volume asphalt surface. The method comprising the steps of providing a composition comprising a solution, emulsion or dispersion of a polymer material, particulate material, rheology modifiers, processing aids, and UV absorbers, wherein the composition is essentially free of bituminous components and is essentially free of cement; and applying the composition to the asphalt surface. The composition preferably is a shear thinning formulation which exhibits a marked reduction in viscosity when sprayed or otherwise subjected to shear during application but increases in viscosity after application.