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

引用本文: 叶晃青, 邓永红, 严燕, 张美杰, 钱勇, 邱学青. 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[J]. 物理化学学报, 2015, 31(10): 1991-1996. doi: 10.3866/PKU.WHXB201509073 shu

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

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

叶晃青 ^1, ,
邓永红 ^1, ,
严燕 ^2, ,
张美杰 ^2, ,
钱勇 ^1, ,
邱学青 ^1,

基金项目:
国家自然科学基金(21436004, 21374032)资助项目 (21436004, 21374032)

摘要:

研究了不同分子量级分的木质素磺酸钠(SLS)在多壁碳纳米管(MWCNTs)上的吸附特征及其对分散性能的影响. 不同级分的SLS及其对MWCNTs的分散性能通过凝胶渗透色谱(GPC), 紫外-可见(UV-Vis)光谱、元素分析、傅里叶变换红外(FT-IR)光谱、zeta电位、扫描电子显微镜(SEM)来表征. 结果表明, 分子量较大的SLS级分中芳香环含量较高, 其与MWCNTs之间的π-π作用更强, 在MWCNTs上的吸附量大, 表现出最佳的分散性能, 所分散的MWCNTs的电阻率最小, 导电性能较佳.

关键词:

English

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

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 Date: 02 July 2015
Available Online: 10 October 2015
Fund Project:
国家自然科学基金(21436004, 21374032)资助项目

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:

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沈阳化工大学材料科学与工程学院沈阳 110142

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

English

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

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

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

English

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

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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