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Vol. 29 No. 3 (2017): Vol 29 Issue 3

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Effect of SiO2 Nanoparticles on Some Mechanical Properties of Epoxy/MWCNT Composites

https://doi.org/10.14233/ajchem.2017.20305
Asmaa S. Khalil
Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq
Mohammed K. Jawad
Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq
Abdulkareem M.A. Alsammarraie
Department of Chemistry, College of Science, University of Baghdad, Baghdad, Iraq
Harith I. Jaafar
Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq

Corresponding Author(s) : Asmaa S. Khalil

asmaashawky67@yahoo.com

Asian Journal of Chemistry, Vol. 29 No. 3 (2017): Vol 29 Issue 3

Abstract

Silicon dioxide nanoparticles with distinctive weight percentage (1, 2, 3, 4 and 5) were utilized to prepare nano SiO2/MWNT/epoxy composites with constant weight percentage 3 % of MWCNT. Ultrasonic mixing process used to disperse the nano-additives into the resin matrix. The mechanical property of composites with diverse weight percentages of SiO2 nanoparticles were investigated. The prepared samples were examined by three point bending and hardness. By adding SiO2 nanoparticles to epoxy/MWCNT composite, this would enhance the Young’s modulus (3.36 and 4.06 GPa) for composites EPCS2 and EPCS4 respectively with 2 and 4 wt. % SiO2 nanoparticles compared to the pure epoxy, (1.59 GPa). Flexural strength has been increased in a random manner with maximum value for 2 wt % nano SiO2 (111 MPa). The hardness of nanocomposite expanded with expanding SiO2 filler loading. The maximum hardness value is for composite with 5 wt % SiO2 nanoparticles (88), which is about 17 % increase in hardness. DSC results show that Tg increases with increasing nano SiO2 content. Scanning electron microscopy used to examine the morphology of the blend.

Keywords

Nanocomposites Epoxy Mechanical properties SiO2 nanoparticles
Khalil, A. S., Jawad, M. K., Alsammarraie, A. M., & Jaafar, H. I. (2016). Effect of SiO2 Nanoparticles on Some Mechanical Properties of Epoxy/MWCNT Composites. Asian Journal of Chemistry, 29(3), 675–678. https://doi.org/10.14233/ajchem.2017.20305
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