Preparation of a novel fluoride-containing carbon nanosphere by high-temperature carbonization method for enhancing fluororubber's mechanical and thermal degradation performance

• Published in: Polymer testing 2024-09, Vol.138, p.108550, Article 108550
• Main Authors: Chen, Yurou, Wei, Yili, Wei, Tiantian, Sun, Yungang, Bai, Zhukang, Gao, Junchang, Li, Jun, Wang, Shun, Wu, Yadong, Jin, Huile
• Format: Article
• Language: English
• Subjects: Fluorine-containing carbon nanospheres; Fluororubbr; Mechanical property; Thermal degradation; Thermal property
• ISSN: 0142-9418; 1873-2348
• DOI: 10.1016/j.polymertesting.2024.108550

In this study, a novel fluorine-containing carbon nanosphere was synthesized by high-temperature carbonization of waste fluororubber trimmings, and its mixing method with fluororubber was investigated. It was found that the solution mixing method resulted in the highest tensile strength (7.6 %) and modulus at 100 % strain (13.3 %) of fluororubber compared to the mechanical mixing method. Furthermore, the addition of fluorine-containing carbon nanosphere can significantly enhance fluororubber's heat resistance, inhibit its thermal degradation, and increase its ultimate service temperature (266.3 °C, 2 years). This work provides new insights into the preparation of high-performance fluororubber composites. •A novel fluorine-containing carbon nanosphere is prepared by high-temperature carbonization method.•Fluorine-containing carbon nanosphere can markedly enhance FKM's heat resistance and inhibit its thermal degradation.•SM-FC's tensile strength and modulus at 100 % strain increases by 21.4 % and 105.8 %.•The ultimate use temperature of SM-FC significantly increases to 266.3 °C.•This work offers a new insight of reinforcing fillers preparation.