Studies from University of New Mexico Reveal New Findings on Materials Research (Improved Strength and Toughness of Carbon Woven Fabric Composites with Functionalized MWCNTs)
By a News Reporter-Staff News Editor at Journal of Technology -- Fresh data on Materials Research are presented in a new report. According to news reporting originating in Albuquerque, New Mexico, by VerticalNews journalists, research stated, "This investigation examines the role of carboxyl functionalized multi-walled carbon nanotubes (COOH-MWCNTs) in the on-and off-axis flexure and the shear responses of thin carbon woven fabric composite plates. The chemically functionalized COOH-MWCNTs were used to fabricate epoxy nanocomposites and, subsequently, carbon woven fabric plates to be tested on flexure and shear."
The news reporters obtained a quote from the research from the University of New Mexico, "In addition to the neat epoxy, three loadings of COOH-MWCNTs were examined: 0.5 wt%, 1.0 wt% and 1.5 wt% of epoxy. While no significant statistical difference in the flexure response of the on-axis specimens was observed, significant increases in the flexure strength, modulus and toughness of the off-axis specimens were observed. The average increase in flexure strength and flexure modulus with the addition of 1.5 wt% COOH-MWCNTs improved by 28% and 19%, respectively. Finite element modeling is used to demonstrate fiber domination in on-axis flexure behavior and matrix domination in off-axis flexure behavior. Furthermore, the 1.5 wt% COOH-MWCNTs increased the toughness of carbon woven composites tested on shear by 33%."
According to the news reporters, the research concluded: "Microstructural investigation using Fourier Transform Infrared Spectroscopy (FTIR) proves the existence of chemical bonds between the COOH-MWCNTs and the epoxy matrix."
For more information on this research see: Improved Strength and Toughness of Carbon Woven Fabric Composites with Functionalized MWCNTs. Materials, 2014;7(6):4640-4657. Materials can be contacted at: Mdpi Ag, Postfach, Ch-4005 Basel, Switzerland. (Wiley-Blackwell - www.wiley.com/; Materials - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-4176)
Our news correspondents report that additional information may be obtained by contacting E. Soliman, University of New Mexico, Dept. of Civil Engn, Albuquerque, NM 87131, United States. Additional authors for this research include U. Kandil and M.R. Taha.
Keywords for this news article include: New Mexico, Albuquerque, United States, Materials Research, North and Central America
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