有机硅聚醚共聚物功能化处理制备多壁碳纳米管悬浊液  

Multi-walled Carbon Nanotubes Suspension Prepared by Functionalization with Siloxane Polyether Copolymer

作　　者：胡长员[1] 胡仲禹[2] 李凤仪[3] 伍振飞[4] 宁云龙[4] 

机构地区：[1]江西科技师范学院江西省材料表面工程重点实验室 [2]江西科技师范学院化工系,南昌330013 [3]南昌大学化学系,南昌330047 [4]江西科技师范学院材料科学与工程学院,南昌330013

出　　处：《化学学报》2008年第17期1943-1948,共6页Acta Chimica Sinica

基　　金：江西省教育厅科技项目(No.GJJ08367)资助项目.

摘　　要：以有机硅聚醚共聚物(PSPEO)为分散剂,水为溶剂,超声波作用下对硝酸纯化的多壁碳纳米管、浓硫酸与浓硝酸组成的混酸剪切的多壁碳纳米管功能化处理,分别得到1～2.5mg/mL和3～5mg/mL的多壁碳纳米管悬浊液.所得悬浊液有较好的稳定性,这得益于有机硅聚醚共聚物独特的结构与性能.用TEM,HRTEM,UV-vis,Raman光谱等技术对多壁碳纳米管悬浊液进行表征,结果表明5～10nm的PSPEO覆盖在碳纳米管表面并与碳纳米管强相互作用,实现了碳纳米管的分散.Multi-walled carbon nanotubes （MWNTs） suspensions were prepared by MWNTs functionalization with siloxane polyether copolymer （PSPEO） in water with the aid of ultrasonication. In the case of nitric acid treated MWNTs, the concentration of MWNTs was up to 1 -2.5 mg/mL, however, in the case of mixture of concentrated sulphuric acid and concentrated nitric acid treated MWNTs, the concentration up to 3 5 mg/mL. The resulting MWNTs suspensions show good stability, which is relative to the unique structure and property of PSPEO. MWNTs suspensions were characterized by TEM, HRTEM, UV-vis, and Raman spectra methods. The experimental shows that 5- 10 nm coating of PSPEO wraps MWNTs and interacts strongly with MWNTs, resulting in the dispersion of MWNTs in water.

关 键 词：有机硅聚醚共聚物 功能化 多壁碳纳米管 悬浊液 

分 类 号：TB383.1[一般工业技术—材料科学与工程]