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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:33 |
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Conference: Bucharest University Faculty of Physics 2015 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
Hydrophobicity induced onto various supports (glass, plastic and cotton)
Authors:
Calin ONIGA (1), Ana-Maria IORDACHE (1), Catalin CEAUS(1), Stefan-Marian IORDACHE(1), Ioan STAMATIN (1)
Affiliation:
1) University of Bucharesct, Faculty of Physics, 3Nano-SAE Research Center, 405 Atomistilor str., Magurele, Ilfov, 077125
E-mail
enix91pk@yahoo.com
Keywords:
superhydrophobicity, sol-gel, silver nanoparticles, cotton, PTFE
Abstract:
Hidrophobicity and the structures which grant this property have been the focus of many scientific studies. The present study focuses on chemically obtained hidrophobic and anti-microbial structures deposited onto common materials: 2 samples of glass, each undergoing a different treatment path using the same chemicals, 2 different types of common plastic that underwent the same path and a piece of cloth. The glass samples were given their hidrophobic and anti-microbial properties with the use of silver nano-particles, the plastic samples were treated with carbon nano-tubes and a polymer, PTFE, and the cloth sample was treated with a silver nano-particles and a chitosan-based solution. The best result was obtained from the chitosan-based treatment of the textile sample. All samples were examined using Raman spectrometry and Atomic Force Microscopy, for morphology and topography and DLS method for particle sizing.
Acknowledgement:
S.-M. Iordache was supported by the strategic grant POSDRU/159/1.5/S/133652, ”Integrated system to improve the quality of doctoral and postdoctoral research in Romania and promotion of the role of science in society” cofinanced by the European Social Found within the Sectorial Operational Program Human Resources Development 2007 – 2013. The work was supported by grants of the Romanian National Authority for Scientific Research, CNCS-UEFISCDI: PN-II-PT-PCCA-2011-3.2-0509 (113/2012), PN-II-ID-PCE-2011-3-0815 (64/2011).
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