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New Fullerenes Data Have Been Reported by Investigators at Amirkabir University of Technology (Improved microwave shielding behavior of carbon...

August 22, 2014



New Fullerenes Data Have Been Reported by Investigators at Amirkabir University of Technology (Improved microwave shielding behavior of carbon nanotube-coated PET fabric using plasma technology)

By a News Reporter-Staff News Editor at Science Letter -- Data detailed on Fullerenes have been presented. According to news reporting out of Tehran, Iran, by NewsRx editors, research stated, "Four different procedures were conducted to load amine functionalized multiwall carbon nanotube (NH2-MWCNT) onto poly (ethylene terephthalate) (PET) fabric surface to obtain a microwave shielding sample. Plasma treated fabric which was subsequently coated with NH2-MWCNT in the presence of acrylic acid was chosen as the best sample."

Our news journalists obtained a quote from the research from the Amirkabir University of Technology, "Surface changes in the PET fabrics were investigated by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Wide-angle X-ray diffraction was used to study the crystalline structure of the PET fabric. The microwave shielding performance of the PET fabrics in term of reflection loss was determined using a network analyzer at X-band (8.2-12.4 GHz). The XPS results revealed that the carbon atomic percentage decreased while the oxygen atomic percentage increased when the fabric was plasma treated and coated with NH2-MWCNT. The SEM images showed that the NH2-MWCNTs were homogenously dispersed and individually separated in the surface of fabric. Moreover, the structural studies showed that the crystalline region of the fabrics was not affected by NH2-MWCNT and plasma treatment. The best microwave absorbing properties were obtained from the plasma treated fabric which was then coated with 10% NH2-MWCNT in the presence of acrylic acid. It showed a minimum reflection loss of similar to-18.2 dB about 11 GHz."

According to the news editors, the research concluded: "Proper attachments of NH2-MWCNT on the PET fabric surface was explained in the suggested mechanism in which hydrogen bonding and amide linkage are responsible for the achievement of microwave shielding properties with high durability."

For more information on this research see: Improved microwave shielding behavior of carbon nanotube-coated PET fabric using plasma technology. Applied Surface Science, 2014;311():593-601. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Applied Surface Science - www.elsevier.com/wps/product/cws_home/505669)

Our news journalists report that additional information may be obtained by contacting A. Haji, Amirkabir Univ Technol, Dept. of Text Engn, Tehran, Iran. Additional authors for this research include R.S. Rahbar and A.M. Shoushtari (see also Fullerenes).

Keywords for this news article include: Iran, Asia, Tehran, Fullerenes, Technology, Carbon Nanotubes

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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