对苯二甲酸表面修饰多壁碳纳米管的研究

Research on the Surface Modification of Multi-walled Carbon Nanotubes by Terephthalic Acid

选用苯二甲酸(TPA)为改性剂,通过酯化反应对多壁碳纳米管(MWNT)进行了表面修饰,讨论了MWNT的用量、反应温度及反应时间对修饰效果的影响,通过红外光谱(IR)和扫描电镜(SEM)表征了样品的形貌与结构。结果表明,MWNT用量为11.76%(质量分数)、反应温度为145℃、反应时间为5h时,TPA对MWNT的修饰效果最好。

Esterification was used to modify multi-walled carbon nanotubes （MWNT）with terephthalic acid （TPA）. The dosage of MWNT, the temperature and time which are impacting the reaction were investigated. The configuration and structure of the sample were characterized by SEM and IR. The results show that when the dosage of MWNT is 11.76%（wt%）, reacting 5h at 145℃ ,the modification is better.