▎ 摘　　要

NOVELTY - A method (M1) involves transferring solubilized graphene onto a substrate in a liquid medium, where transferring occurs by changing the solubility of graphene in the liquid medium. USE - For coating a substrate such as particles, spheres, and/or fibers, with graphene for use in articles (claimed); as functional fillers in polymeric composites for manufacturing articles in many industries including electronics, battery, photovoltaic, semiconductor, construction and automotive industries. ADVANTAGE - The solubility change enables the deposition of the graphene onto the substrate. Once the graphene is deposited onto the substrate, the at least partially coated substrate can be separated from the liquid medium. The substrates can then serve as a carrier to deliver the graphene to a desired application. This approach eliminates handling excessive amounts of the solvent when attempting to apply solution based graphene directly in end use applications. The method is also suitable for timely applying graphene to several substrates in a single batch or continuous process. The articles produced by melt processing the present composition exhibit superior mechanical and electrical characteristics. The composite comprised of a graphene coated glass fiber in a polypropylene matrix exhibits substantial increases in electrical conductivity along with enhanced flexural modulus, flexural strength and impact strength. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) coating a substrate with graphene involving: providing a solution having a graphene solute; immersing at least a portion of the substrate into the solution; and changing the graphene solute's solubility so that graphene coats the substrate immersed in solution; (2) an article comprising a substrate having a surface, where graphene is attached to at least a portion of the surface of the substrate by the method (M1); (3) a composition comprising: a polymeric matrix; and a substrate with at least a portion of a surface of the substrate coated with graphene, where the substrate is dispersed throughout the polymeric matrix; and (4) a method involving melt processing the polymeric matrix with a substrate having at least a portion of a surface of the substrate coated with graphene.