Determining the Tensile Properties and Dispersion Characterization of CNTs in Epoxy Using Tem and Raman Spectroscopy

被引：1
作者：
M. Bourchak
K. A. Juhany
N. Salah
R. Ajaj
A. Algarni
F. Scarpa
机构：
[1] King Abdulaziz University,Aerospace Engineering Department
[2] King Abdulaziz University,Center of Nanotechnology
[3] Khalifa University of Science and Technology,Department of Aerospace Engineering
[4] University of Bristol,Bristol Composites Institute (ACCIS)
来源：
Mechanics of Composite Materials | 2020年 / 56卷
关键词：
carbon nanotubes; dispersion; tensile properties; sonication; transmission electron microscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this work, transmission electron microscopy (TEM) and Raman spectroscopy were used to assess the dispersion quality of carbon nanotubes (CNTs) in an epoxy matrix. Its ultimate tensile strength (UTS), engineering strain, local strain, and the elastic tensile modulus were determined experimentally. The effect of CNT sonication time in an ethanol medium was also evaluated. A statistical analysis using the t-test approach was employed to clarify how the use of CNTs affects the mechanical properties of the matrix. An increase in the UTS by 10 and 7% was observed in the cases of 0.1 wt.% single-walled carbon nanotubes (SWCNTs) and multiwalled carbon nanotubes (MWCNTs), respectively, but the elastic modulus increased significantly when using MWCNTs. A TEM analysis indicated that the dispersion quality was proportional to the content of CNTs. It is concluded that a CNT-reinforced epoxy matrix is highly sensitive to the amount of CNTs, which can explain the conflicting properties reported for such matrices in the literature.
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页码：215 / 226
页数：11
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