Hierarchical structure of carbon nanotube networks

被引：41

作者：

Chatterjee, Tirtha ^{[1
]}

Jackson, Andrew ^{[2
,3
]}

Krishnamoorti, Ramanan ^{[1
]}

机构：

[1] Univ Houston, Dept Chem & Biomol Engn, Houston, TX 77204 USA

[2] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[3] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 22期

关键词：

D O I：

10.1021/ja801480h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The hierarchical structure of semidilute suspensions of single-walled carbon nanotubes in polymeric matrices, studied by the use of ultrasmall and small angle neutron scattering, indicates an aggregate size that is independent on both nanotube concentration and polymer matrix and a mesh within the floc that becomes slightly denser with increasing nanotube concentration. The number of clusters grows linearly with concentration of nanotubes. These structural parameters suggest that the interactions between the floes dictate the concentration-dependent elastic strength scaling of the network, with the absolute values of the specific elastic strength being inversely related to the percolation threshold.

引用

页码：6934 / +

页数：3

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