Functionalized Few-Walled Carbon Nanotubes for Mechanical Reinforcement of Polymeric Composites

被引：135

作者：

Hou, Ye ^{[1
]}

Tang, Jie ^{[2
]}

Zhang, Hongbo ^{[1
]}

Qian, Cheng ^{[1
]}

Feng, Yiyu ^{[1
]}

Liu, Jie ^{[1
]}

机构：

[1] Duke Univ, Dept Chem, Durham, NC 27708 USA

[2] Natl Inst Mat Sci, Nanomat Grp 1D, Tsukuba, Ibaraki 3050047, Japan

来源：

ACS NANO | 2009年 / 3卷 / 05期

基金：

美国国家科学基金会;

关键词：

FWNTs; Young's modulus; PVA; FIBER WAVINESS; SINGLE; NANOCOMPOSITES;

D O I：

10.1021/nn9000512

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Compared to single-walled carbon nanotubes (SWNTs) and more defective multiwalled carbon nanotubes (MWNTs), the thin few-walled carbon nanotubes (FWNTs) are believed to have extraordinary mechanical properties. However, the enhancement of mechanical properties in FWNTs-polymer composites has remained elusive. In this study, free-standing carbon nanotubes (CNTs)/polymer composite films were fabricated with three types (SWNTs, FWNTs, MWNTs) of functionalized CNTs. The mechanical properties of composite films have been investigated. It is observed that the Young's modulus of composite films with only 0.2 wt % functionalized FWNTs shows a remarkable reinforcement value of dY/dV(f) = 1658 GlPa, which is similar to 400 GPa higher than the highest value (dY/dV(f) = 1244 GPa) that was previously reported. In addition, the Young's modulus increased steadily with the increased concentration of FWNTs. The results indicated that FWNTs are practically the optimum reinforcing filler for the next generation of carbon nanotube-based composite materials.

引用

页码：1057 / 1062

页数：6

共 30 条

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