"In this invention,FG is obtained by the fluorination of electrochemically exfoliated graphene (F-ECG), which is found to be a ONE-STEP approach for the scalable preparation of FG. The precursor with fluorine atoms is mixed with the ECG followed by the apply energy to form the fluorinated graphene. This process demonstrates an eco-friendly and safe as well as scalable features. We have demonstrate that the FG flakes as a filler in epoxy(FG/epoxy nanocomposite) can achieve the highest reported anticorrosion performance (corrosion rate (CR) = 7.83x10-8 mm/year; current = 3.37 x10-12 A cm-2).In our invention, FG is obtained by ONE-STEP approach for the scalable preparation of FG. FG can achieve the three factors, including the excellent dispersibility, super-hydrophobicity, and high electrical insulator, which was beneficial for impeding the entry of molecules through the coating to the coating-substrate interface and attenuating electron transport in the interconnected graphene network
(1)A unique, facile and ecofriendly method to obtain FG is first reported,
(2) Only 1 wt.％ FG loading achieve the leading value among the reported anticorrosion performances of other materials (corrosion rate (CR) = 7.8310-8 mm/year; current = 3.37 10-12 A cm-2).
(3)Diffusion coefficient (Dacs) is at least 2 orders of magnitude lower than that reported gaphene.Mass-produced fluorination process is safe and the process is simple, efficient, high yield, and low cost.
1. This technology can adjust the hydrophobicity of fluorinated graphene according to industrial needs
2. Additives that can be applied to polymer materials to improve the effectiveness of anti-corrosion coatings, can be applied to offshore wind power tower column anti-corrosion, etc.
3. Can be coated on circuit boards as an anticorrosion passivation layer for high-level circuit boardnor military-grade electrical components.
4. The surface of the fluorinated graphene is negatively charged. The electroplating method can be used to form a fluorinated graphene film on the surface of metal components, especially for irregularly shape."