Issue 10, 2013
From the journal:

Journal of Materials Chemistry C

Enhancing interfacial adhesion and functionality of carbon nanotube fibers with depolymerized chitosan

Yuting Ye,ab   Xiaohua Zhang,*b   Fancheng Meng,ab   Jingna Zhaob  and  Qingwen Li*b  

* Corresponding authors

a Key Laboratory of Nano-Devices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Ruoshui Road 398, Suzhou 215123, China
E-mail: xhzhang2009@sinano.ac.cn
Fax: +86 512 6287 2552
Tel: +86 512 6287 2552

b University of Chinese Academy of Sciences, Yuquan Road 19, Beijing 100049, China
E-mail: qwli2007@sinano.ac.cn

Abstract

The infiltration of high molecular weight polymers into carbon nanotube (CNT) fibers to strengthen them is strongly restricted. By depolymerizing chitosan with H2O2 in an acidic environment, the molecular weight was significantly decreased to below 7.5 × 104 g mol−1, resulting in improved infiltration. The CNT fiber containing depolymerized chitosan was as strong as 1.81 GPa, double the strength of the ethanol-densified fiber. The strengthening ability was greater than that of polyvinyl alcohol, and was attributed to the amino and hydroxyl groups. These groups also provided the composite fiber with multifunctionality, and we provided two examples. After the adsorption of Cu(II), the fiber's electrical conductivity was increased by 86 S cm−1. The chitosan-infiltrated fiber induced the efficient deposition of CdS nanoparticles, and thus became photoluminescent.

Graphical abstract: Enhancing interfacial adhesion and functionality of carbon nanotube fibers with depolymerized chitosan

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Article information

DOI
https://doi.org/10.1039/C3TC00539A
Article type
Paper
Submitted
01 Nov 2012
Accepted
09 Jan 2013
First published
10 Jan 2013

J. Mater. Chem. C, 2013,1, 2009-2013

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Enhancing interfacial adhesion and functionality of carbon nanotube fibers with depolymerized chitosan

Y. Ye, X. Zhang, F. Meng, J. Zhao and Q. Li, J. Mater. Chem. C, 2013, 1, 2009 DOI: 10.1039/C3TC00539A

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