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Acta Chimica Sinica ›› 2008, Vol. 66 ›› Issue (17): 1943-1948. Previous Articles     Next Articles

Original Articles

有机硅聚醚共聚物功能化处理制备多壁碳纳米管悬浊液

胡长员*,a,b,c 胡仲禹d 李凤仪c 伍振飞b 宁云龙b

  

  1. (a江西科技师范学院江西省材料表面工程重点实验室 南昌 330013)
    (b江西科技师范学院材料科学与工程学院 南昌 330013)
    (c南昌大学化学系 南昌 330047)
    (d江西科技师范学院化工系 南昌 330013)

  • 投稿日期:2007-12-03 修回日期:2008-03-12 发布日期:2008-09-14
  • 通讯作者: 胡长员

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

HU, Chang-Yuan*,a,b,c HU, Zhong-Yu d LI, Feng-Yi c
WU, Zhen-Fei b NING, Yun-Long b
  

  1. (a Jiangxi Key Lab of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013)
    (b School of Materials Science and Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013)
    (c Department of Chemistry, Nanchang University, Nanchang 330047)
    (d Department of Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013)
  • Received:2007-12-03 Revised:2008-03-12 Published:2008-09-14
  • Contact: HU, Chang-Yuan

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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.

Key words: siloxane polyether copolymer, functionalization, MWNTs, suspension