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Effect of surface “groove” structure of carbon nanotube bundles on the formation of nanohybrid shish kebab

Published online by Cambridge University Press:  17 October 2012

Nanying Ning ,
Wei Zhang ,
Jiajie Yan ,
Fan Xu ,
Changyu Tang  and
Qiang Fu
Nanying Ning
Affiliation:
Department of Polymer Science & Materials, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
Wei Zhang
Affiliation:
Department of Polymer Science & Materials, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
Jiajie Yan
Affiliation:
Department of Polymer Science & Materials, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
Fan Xu
Affiliation:
Department of Polymer Science & Materials, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
Changyu Tang
Affiliation:
Institute of Chemical Materials, Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu 610207, People’s Republic of China
Qiang Fu*
Affiliation:
College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: qiangfu@scu.edu.cn
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Abstract

Nanohybrid shish kebab (NHSK) structure, in which fibrous carbon nanotubes (CNTs) act as shish, while polymer lamellae as kebab, is of particular interest both scientifically and technologically. In this work, two types of CNTs with the same diameter range and different topography structure, namely multiwalled carbon nanotubes (MWNTs) with a relatively smooth surface and double-walled carbon nanotubes (DWNTs) bundles with a groove structure, were used to induce polyethylene (PE) crystallization for the formation of NHSK. For PE/MWNTs system, NHSK was formed only at a relatively low crystallization temperature (Tc), and PE lamellae are not completely perpendicular to the long axis of MWNTs. However, for PE/DWNTs bundles system, NHSK could be obtained even at a much higher Tc, and almost all the PE lamellae are perpendicular to CNTs long axis, due to the unique “groove structure” formed by DWNTs bundles. The enhanced nucleation ability and the facilitated lamellae orientation by using DWNTs bundles are not only of great crystallography interest but also are very important for functional design in nanodevice applications.

Keywords

Nanohybrid shish kebab (NHSK)DWNTs bundlesPE“groove” structurenucleation abilitylamellae orientation
Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 21 , 14 November 2012 , pp. 2812 - 2818
Copyright
Copyright © Materials Research Society 2012

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