不同分子量木质素磺酸钠对多壁碳纳米管分散性能的影响

doi:10.3866/PKU.WHXB201509073

Acta Phys. -Chim. Sin. ›› 2015, Vol. 31 ›› Issue (10): 1991-1996.doi: 10.3866/PKU.WHXB201509073

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Influence of Soldium Lignosulfonate with Different Molecular Weights on the Dispersion of Multiwalled Carbon Nanotubes

Huang-Qing. YE¹,Yong-Hong. DENG¹,Yan. YAN²,Mei-Jie. ZHANG²,Yong. QIAN¹,Xue-Qing. QIU^1,*()

¹ School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
² Cnano (Zhenjiang) Technology Limited, Zhenjiang 212000, Jiangsu Province, P. R. China

Received:2015-07-02 Published:2015-10-10
Contact: Xue-Qing. QIU E-mail:xueqingqiu66@163.com
Supported by:
The project was supported by the National Natural Science Foundation of China(21436004);The project was supported by the National Natural Science Foundation of China(21374032)

Abstract

Abstract:

The influence of sodium lignosulfonate (SLS) fractions with different molecular weights on the adsorption characteristics of multi-walled carbon nanotubes (MWCNTs) and their dispersion performance was studied using gel permeation chromatography (GPC), UV-Vis spectroscopy, elementary analysis, Fourier transform infrared (FT-IR) spectroscopy, zeta potential analysis, and scanning electron microscopy (SEM). The results indicate that SLS with higher molecular weight disperse MWCNTs better and that dispersed MWCNTs exhibit lower specific resistance and increased conductivity. It is supposed that SLS fraction with higher molecular weight has more aromatic rings, thus accounting for stronger π-π interactions with MWCNTs and increased adsorption amount.

Key words: Lignosulfonate, Molecular weight, Carbon nanotube, Adsorption, Dispersion

Huang-Qing. YE,Yong-Hong. DENG,Yan. YAN,Mei-Jie. ZHANG,Yong. QIAN,Xue-Qing. QIU. Influence of Soldium Lignosulfonate with Different Molecular Weights on the Dispersion of Multiwalled Carbon Nanotubes[J]. Acta Phys. -Chim. Sin. 2015, 31(10), 1991-1996. doi: 10.3866/PKU.WHXB201509073

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Influence of Soldium Lignosulfonate with Different Molecular Weights on the Dispersion of Multiwalled Carbon Nanotubes

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