▎ 摘　　要

NOVELTY - Coating surfaces of different substrates with covalently-bonded graphenes comprises thermal expansion and floating of graphene, graphene oxide or graphite materials in the presence of silicon- or cyano-containing polymers optionally with metal containing compounds at elevated temperatures. USE - The method is useful for coating the surfaces of different substrates, where: the covalently-bonded graphene coating is useful for aircrafts, electronics and marine applications; the carbide bonded graphene coating of silicon wafer, quartz and glass is used for solar cells, semiconductor components and optical devices; the carbide bonded graphene coating of ceramics, quartz, glass and metals is used for cookware; the free standing covalently-bonded graphene films, sheets, hollow fibers and articles with various shapes are used for electronics, transportation, composites, optical, energy and other applications (All claimed); and coated articles are useful in electromagnetic interference shielding, corrosion resistance, surface friction reduction, surface binding reduction and electric heating. ADVANTAGE - The method provides: covalently-bonded graphene coating having excellent mechanical strength, electrical and thermal conductivities, and strong binding ability to the solid substrates; covalently-bonded graphene coating of silicon wafer, quartz and glass possessing tunable semi-conductive and optical properties; carbide bonded graphene coating having unique combination of anti-corrosion, anti-acid, anti-abrasion and hydrophobic properties; and coating having low surface friction.