采用超声分散法,以6种分散剂制备了多壁碳纳米管(MWNTs)的丙酮分散液.对分散效果进行比较,结果显示Triton X- 100对MWNTs的分散作用好于其他分散剂.采用6种不同氧化条件对MWNTs进行处理,通过热重测试和酸碱滴定分析了处理后碳纳米管表面的羧基含量,探讨了MWNTs的羧基含量对Tri-ton X- 100吸附性的影响.系统研究了Triton X- 100的用量和超声分散时间对MWNTs在丙酮中分散效果的影响.结果表明:MWNTs在超声波中60℃处理10 h的酸化效果最好；酸化处理后,Triton X- 100在MWNTs表面的吸附量明显增加；最佳分散工艺为加入7％Triton X- 100,超声时间75 min.
参考文献
| [1] | Popov VN .Carbon nanotubes: properties and application[J].Materials Science & Engineering, R. Reports: A Review Journal,2004(3):61-102. |
| [2] | 刘平桂;任碧野;龚克成 .半导体纳米微粒/聚合物复合物的制备及其光电性能[J].功能材料,1999,30(04):350-351. |
| [3] | 周文英,左晶,任文娥.高介电常数高分子复合材料的研究进展[J].中国塑料,2010(02):6-10. |
| [4] | Nuria Garcia;Teresa Corrales;Julio Guzman;Pilar Tiemblo .Understanding the role of nanosilica particle surfaces in the thermal degradation of nanosilica—poly(methyl methacrylate) solution-blended nanocomposites: From low to high silica concentration[J].Polymer Degradation and Stability,2007(4):635-643. |
| [5] | 许凤兰,李玉宝,王学江,左奕,韩劲.纳米羟基磷灰石/聚乙烯醇复合水凝胶的制备和性能研究[J].功能材料,2004(04):509-512. |
| [6] | Clark, M.D.;Subramanian, S.;Krishnamoorti, R. .Understanding surfactant aided aqueous dispersion of multi-walled carbon nanotubes[J].Journal of Colloid and Interface Science,2011(1):144-151. |
| [7] | Li, Z.;Wu, Z.;Li, K. .The high dispersion of DNA-multiwalled carbon nanotubes and their properties[J].Analytical Biochemistry: An International Journal of Analytical and Preparative Methods,2009(2):267-270. |
| [8] | A.G. Osorio;I.C.L Silveira;V.L. Bueno;C.P. Bergmann .H_2so_4/hno_3/hcl-functionalization And Its Effect On Dispersion Of Carbon Nanotubes In Aqueous Media[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2008(5P1):2485-2489. |
| [9] | 李昌厚.可见光分光光度计[M].北京:化学工业出版社,2004 |
| [10] | Hu H.;Zhao B.;Hamon MA.;Itkis ME.;Haddon RC.;Bhowmik P. .Determination of the acidic sites of purified single-walled carbon nanotubes by acid-base titration[J].Chemical Physics Letters,2001(1/2):25-28. |
| [11] | Britto PJ.;Rubio A.;Alonso JA.;Ajayan PM.;Santhanam KSV. .Improved charge transfer at carbon nanotube electrodes[J].Advanced Materials,1999(2):154-157. |
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