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Investigation of mechanical properties, antibacterial features, and water vapor permeability of polyvinyl alcohol thin films reinforced by glutaraldehyde and multiwalled carbon nanotube
, Article Polymer Composites ; Vol. 35,Issue. 9 , 2014 , pp. 1736-1743 ; ISSN: 1548-0569 ; Kavoosi, G ; Mohammad Ali Dadfar, S ; Sharif University of Technology
Abstract
Polyvinyl alcohol (PVA) thin films were reinforced by glutaraldehyde and multiwalled carbon nanotubes (MWCNTs) and then mechanical, water solubility, water swelling, water uptake, water vapor permeability, and antibacterial properties of the films were examined. Cross-linking by glutaraldehyde or incorporation of MWCNT caused a significant increase in tensile strength, decrease in elongation at break, and increase in Young's modulus of the PVA films, while MWCNTs were more effective rather than that of glutaraldehyde. Cross-linking by glutaraldehyde or incorporation of MWCNT caused a significant decrease in water solubility, water swelling and water uptake, with a similar manner....
Application of the combined neuro-computing, fuzzy logic and swarm intelligence for optimization of compocast nanocomposites
, Article Journal of Composite Materials ; Volume 49, Issue 13 , 2015 , Pages 1653-1663 ; 00219983 (ISSN) ; Rahimipour, M. R ; Shabani, M. O ; Davami, P ; Sharif University of Technology
SAGE Publications Ltd
2015
Abstract
In the last few years, an increasing attention has been paid to the issues of saving energy and reducing the manufacturing costs in the transport industry which necessitates further efforts to replace traditional materials like steel with lightweight materials such as plastics, aluminum, magnesium, and composites. Metal matrix nanocomposites have turned into an established material in today's industry with an ongoing expansion in their field of applications. In this study, the formation of nanoparticle-aluminum metal matrix composites is described by compocast processing from nanoparticle Al2O3 and the A356 aluminum alloy. In order to optimize the processing parameters, a novel approach is...