Process for producing composite material

A process for producing a composite, the process comprising:

• a) providing a first dispersion fluid comprising a source of graphene selected from graphene and partially oxidised graphene, wherein the partially oxidized graphene includes oxygen in an amount of up to 10% by weight;
• b) providing a particulate material, which is a polymeric material selected from meta-aramid, para-aramid, polycarbonate, poly(methyl methacrylate) (PMMA), nylon, polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), polyaryletherketone, polypropylene carbonate, polyester, polylactic acid, polyurethane, polyvinyl alcohol, polyvinyl acetate and polyvinyl ester;
• c) dispersing the particulate material in the first dispersion fluid comprising the graphene or the partially oxidised graphene, to form a dispersion mixture, and
• d) providing a base in the dispersion mixture,
• thereby causing the graphene and the particulate material in the dispersion mixture to interact forming the composite.