▎ 摘　　要

NOVELTY - A functionalized graphene compound (A1) comprising graphene and fluorine is new, where the amount of fluorine bonded to graphene is at least 50 atom% of the theoretical maximum stoichiometry possible for a graphene fluorine compound so that the ratio of fluorine to carbon is at least 0.50:1. USE - As structural material, electronic component, optical component, magnetic component or coating; for making functionalized graphene compound-polymer composite (claimed); as an insulator in field effect transistors. ADVANTAGE - The functionalized graphene (FG) compound is stable and has good electronic properties; has a room temperature stability measured in terms of no loss of fluorine atoms over a period of at least 720 hours; and has less than 10% defects, in the form of intrinsic defects. The FG is a high-quality crystal with a large energy gap in electronic spectrum and can serve as an insulator in field effect transistors. The process conditions allow fluorographene to be prepared reliably and repeatable. The fluorographene has a high stoichiometric ratio of fluorine:carbon of greater than or equal to 0.50:1, thus is suitable for optoelectronic and electronic applications where known graphene-derived materials are not. The higher fluorine content of the material is also more beneficial in applications including protective coatings, high performance sealing. The stable fully functionalized graphene derivative can be produced in the form of fluorographene. The functionalized graphene is stable at room temperature and does not suffer from loss of fluorine atoms. The graphene-fluorine compound exhibits improved optical properties with respect to graphene such as optical transparency. The graphene-fluorine compound has very strong mechanical properties that are similar to that of graphene; and improves the thermal, electrical, chemical, mechanical properties of fluoropolymers (FP). The FG can be compatible with and can be well dispersed throughout the FP. This can lead to a better fluoropolymer product with improved properties such as temperature performance and chemical resistance. The composite compound has a superior thermal and/or chemical resistance than the fluoropolymer. The fluorinated graphene-polymer compound provides improved thermal resistance as compared to the polymer. One of the most important properties of fluoropolymers is resistance to heat. Combined with chemical resistance and excellent dielectric stability, the heat resistance of fluoropolymer resin yields an extremely versatile family of engineering materials. These unique properties provide certain desirable performance characteristics needed in the event of fire, in fluid containment or exclusion, electrical overload and similar emergencies. Conventionally, FP inter-chain interactions are very weak but spread over the area of FG, FG is able to act as a very effective and compatible reinforcement. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparing a functionalized graphene compound (A1) comprising graphene and fluorine; and (2) a functionalized graphene compound-polymer composite, where the functionalized graphene comprises graphene and fluorine, the amount of fluorine bonded to graphene is at least 25 atom% of the theoretical maximum stoichiometry possible for a graphene fluorine compound so that the ratio of fluorine to carbon is at least 0.25:1.