Effect of acid treated carbon nanotubes on mechanical, rheological and thermal properties of polystyrene nanocomposites

被引：79

作者：

Amr, Issam Thaher ^{[1
]}

Al-Amer, Adnan ^{[1
]}

Thomas P, Selvin ^{[1
]}

Al-Harthi, Mamdouh ^{[1
]}

Girei, Salihu Adamu ^{[1
]}

Sougrat, Rachid ^{[3
]}

Atieh, Muataz Ali ^{[1
,2
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia

[2] King Fahd Univ Petr & Minerals, Ctr Res Excellence Nanotechnol CENT, Dhahran 31261, Saudi Arabia

[3] King Abdullah Univ Sci & Technol, Ctr Imaging & Characterizat, Lab Nanobiol, Thuwal 4700, Saudi Arabia

来源：

COMPOSITES PART B-ENGINEERING | 2011年 / 42卷 / 06期

关键词：

Carbon nanotube; Polymer-matrix composites (PMCs); Mechanical properties; Rheological properties; POLYMER COMPOSITES; TEMPERATURE; DISPERSION; STRENGTH; BEHAVIOR; LOAD;

D O I：

10.1016/j.compositesb.2011.04.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, multiwall carbon nanotubes (CNT) were functionalized by acid treatment and characterized using Fourier Transform Infrared Spectroscopy (FTIR) and thermogravimetric analysis (TGA). Polystyrene/CNT composites of both the untreated and acid treated carbon nanotubes were prepared by thermal bulk polymerization without any initiator at different loadings of CNT. The tensile tests showed that the addition of 0.5 wt.% of acid treated CNT results in 22% increase in Young's modulus. The DSC measurements showed a decrease in glass transition temperature (T(g)) of PS in the composites. The rheological studies at 190 degrees C showed that the addition of untreated CNT increases the viscoelastic behavior of the PS matrix, while the acid treated CNT acts as plasticizer. Thermogravimetric analysis indicated that the incorporation of CNT into PS enhanced the thermal properties of the matrix polymer. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1554 / 1561

页数：8

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