氟化石墨烯近年來憑藉其二維材料特有片層滑移系統及其更低之表面能(C-F鍵)，成為固態磨潤領域的高潛力材料。然而其在應用上仍有許多瓶頸急需要解決。傳統製程高毒性、汙染及氟化率不均問題使其目前仍難以達到工業上的均質及量產需求，此外這類二維材料在塗佈時的低附著性瓶頸更大幅限制了其實際應用。本研究將介紹一種以含氟高分子為前驅物之綠色製程於量產氟化石墨烯，相較於過去習用製程更為安全環保且產物更為均質穩定並符合量產製程所需。此外利用電泳沉積法製備具有高附著力和膜厚可控性之氟化石墨烯固態磨潤塗層，其厚度可簡單透過調整如施加電壓或是電泳時間控制於0.2至2.5 μm之間。研究發現透過電泳沉積法形成之新型態鍵結CF-Cu以及CF-Cu-FC鍵結可大幅提升氟化石墨烯與金屬底材之附著力，於刮痕測試中，其臨界荷重可達23.81 N遠大於一般刮塗之1.92 N。而在磨耗特性分析上，氟化石墨烯塗層可使銅基板之摩擦係數由0.77降低至0.26，且其壽命可達929 圈，並能有效降低磨耗率達35%。此外，此技術亦可延伸並應用於其他常見的工業金屬基板如鋁鎂合金以及碳鋼上，並發現其亦可分別降低磨耗率達50以及90%。本研究亦展示了此方法在時效性、熱穩定性以及複雜工件表面塗佈等方面之潛力。憑藉著符合工業需求之製程技術以及展現高抗磨耗之效能，本研究展示了新材料於固態磨潤的一種極具未來潛力的解決策略。;With the unique interlayer sliding system and their extremely low surface free energy (C-F bonding), the fluorinated graphene (FG) became a potential 2D material in the research of solid lubricant. However, to become an industry product there are still some urgent issues that need to be solved. The toxic, high pollution chemicals and unstable fluorination degree of FG by the typical methods hinders their industry demand like the uniform mass production. In addition, the low adhesion issue in the 2D material coating seriously limited its practical applications. In this report, low pollution with high yield fabrication method of FG is introduced by using a high fluorine-based polymer as the precursor, which exhibited a higher safety and better product uniformity when compared to the traditional fluorinated method that enabled the request of mass production in industry application. In addition, by using the electrophoretic deposition method (EPD), an ultrahigh adhesion with a thickness controllable (0.2 to 2.5 μm) was achieved. With the formation of the unique CF-Cu and CF-Cu-FC bonding during the deposition process, the adhesion of FG film is highly improved, where the critical loading is up to 23.81 N which was much higher than FG coating prepared by print coating (1.92 N) in scratch testing. The as-prepared FG solid lubricant film on Cu substrate successfully decreases the coefficient of friction (CoF) from 0.77 to 0.26 with a long lifetime of up to 929 cycles and a decreasing wear rate by 35%. Also, the frequently used substrates such as aluminum-magnesium alloy and carbon steel were tested, where a decrease in wear rate by 50 and 90% were obtained, respectively. In this study, FG coating showed high stability while the EPD method exhibits the feasibility of deposition on complex surface substrates with high uniformity, which provides a new strategy to prepare a robust and high-performance solid lubricant film.
