PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Dynamic mechanical analysis of single walled carbon nanotubes/polymethyl methacrylate nanocomposite films |
Ali Badawia, N. Al-Hosinya b |
a Department of Physics, Faculty of Science, Taif University, Taif m21974, Saudi Arabia; b Department of Physics, Faculty of Science, Aljouf University, Sakkaka 42421, Saudi Arabia |
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Abstract Dynamic mechanical properties of nanocomposite films with different ratios of single walled carbon nanotubes/polymethyl methacrylate (SWCNTs/PMMA) are studied. Nanocomposite films of different ratios (0, 0.5, 1.0, and 2.0 weight percent (wt%)) of SWCNTs/PMMA are fabricated by using a casting technique. The morphological and structural properties of both SWCNT powder and SWCNTs/PMMA nanocomposite films are investigated by using a high resolution transmission electron microscope and x-ray diffractometer respectively. The mechanical properties including the storage modulus, loss modulus, loss factor (tanδ) and stiffness of the nanocomposite film as a function of temperature are recorded by using a dynamic mechanical analyzer at a frequency of 1 Hz. Compared with pure PMMA film, the nanocomposite films with different ratios of SWCNTs/PMMA are observed to have enhanced storage moduli, loss moduli and high stiffness, each of which is a function of temperature. The intensity of the tanδ peak for pure PMMA film is larger than those of the nanocomposite films. The glass transition temperature (Tg) of SWCNTs/PMMA nanocomposite film shifts towards the higher temperature side with respect to pure PMMA film from 91.2 ℃ to 99.5 ℃ as the ratio of SWCNTs/PMMA increases from 0 to 2.0 wt%.
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Received: 14 April 2015
Revised: 24 May 2015
Accepted manuscript online:
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PACS:
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51.35.+a
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(Mechanical properties; compressibility)
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61.46.-w
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(Structure of nanoscale materials)
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62.20.-x
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(Mechanical properties of solids)
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62.25.-g
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(Mechanical properties of nanoscale systems)
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Fund: Project supported by Taif University (Grant No. 1/435/3524). |
Corresponding Authors:
Ali Badawi
E-mail: adaraghmeh@yahoo.com
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Cite this article:
Ali Badawi, N. Al-Hosiny Dynamic mechanical analysis of single walled carbon nanotubes/polymethyl methacrylate nanocomposite films 2015 Chin. Phys. B 24 105101
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