表面改性的火焰法碳纳米管/聚苯乙烯复合材料的制备与性能

表面改性的火焰法碳纳米管/聚苯乙烯复合材料的制备与性能 Functionalization of Flame-Synthesized Carbon Nanotube and Its Application in Polystyrene Composites 方鹏飞 FANG Pengfei 1 2 first-author 刘汉明 LIU Hanming 1 2 廖灵敏 LIAO Lingmin 1 2 潘春旭 PAN Chunxu 1 2 武汉大学物理科学与技术学院 武汉大学物理科学与技术学院 School of Physics and Technology, Wuhan University School of Physics and Technology, Wuhan University 武汉大学物理科学与技术学院,湖北,武汉,430072 武汉大学物理科学与技术学院,湖北,武汉,430072 通过傅立叶变换红外光谱（FT-IR）和热失重分析（TGA）等方法研究了火焰法制备的多壁碳纳米管（F-MWCNT）的结构,发现F-MWCNT表面带有一定量的羧基等活性基团.将F-MWCNT直接与氯化亚砜及十六烷基胺反应,成功制备了其酰胺功能化产物（H-MWCNT）.扫描电子显微镜（SEM）和动态力学分析（DMA）结果表明,F-MWCNT及酰胺化产物H-MWCNT明显改善了相应的聚苯乙烯（PS）/碳纳米管复合材料的界面结构和力学性能. The functionalization of multi-walled carbon nanotube synthesized from diffusion on flame（F-MWCNT） with thionyl chloride and n-hexadecylamine was carried out without the pretreatment of acid oxidation. The FT-IR, XPS and TGA results showed that there were carboxylic acid groups in the F-MWCNT, and n-hexadecylamine was successfully attached on the sidewalls of F-MWCNT after functionalization. SEM results showed that the dispersion of F-MWCNT in polystyrene composites was more homogenous than that of pure multi-walled carbon nanotube synthesized by CVD. DMA results indicated that the functionalized F-MWCNT played an better role in the reinforcement of polystyrene composites. 多壁碳纳米管 聚苯乙烯 功能化 火焰法合成 原位聚合 multi-walled carbon nanotubes（MWCNT） polystyrene functionalization flame synthesis in situ polymerization TB332 国家自然科学基金资助项目（20304009） 2008-01-01 2021-04-01 1