Researchers at Amirkabir University of Technology Report New Data on Nanocomposites (Evaluating protection performance of zinc rich epoxy paints modified with polyaniline and polyaniline-clay nanocomposite)
By a News Reporter-Staff News Editor at Life Science Weekly -- Research findings on Nanocomposites are discussed in a new report. According to news reporting out of Tehran, Iran, by NewsRx editors, research stated, "Cloisite 30B nano clay was delaminated in the presence of aniline monomers using supercritical CO2 (ScCO2) process. Rapid mixing polymerization of aniline monomers was done in supercritical CO2 to produce exfoliated polyaniline clay (PAniC) nanocomposites with high barrier properties."
Our news journalists obtained a quote from the research from the Amirkabir University of Technology, "Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and XRD analysis have been used to characterize morphology and structure of the synthesized products. The synthesized products were added to a commercial zinc rich epoxy primer to improve its initial barrier properties. Barrier properties of unmodified and modified primers were then studied by determining water vapour transmission (WVT) rate of their free films, free corrosion potential (E-corr) and electrochemical impedance spectroscopy (EIS) measurements of carbon steel coated panels. Results showed that samples modified with PAniC nanocomposites had better barrier properties compared to PAni modified and original primers. The coating resistance of PAniC modified primer was at least one order of magnitude higher than other primers at the begining of immersion."
According to the news editors, the research concluded: "After one year of immersion, the coating resistance of original, PAni modified and PAniC modified primers were found to be 267, 1610 and 5540 ohm, respectively."
For more information on this research see: Evaluating protection performance of zinc rich epoxy paints modified with polyaniline and polyaniline-clay nanocomposite. Progress in Organic Coatings, 2014;77(8):1299-1308. Progress in Organic Coatings can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier - www.elsevier.com; Progress in Organic Coatings - www.elsevier.com/wps/product/cws_home/504100)
Our news journalists report that additional information may be obtained by contacting E. Akbarinezhad, Amirkabir Univ Technol, Dept. of Polymer Engn & Color Technol, Tehran, Iran. Additional authors for this research include M. Ebrahimi, F. Sharif and A. Ghanbarzadeh (see also Nanocomposites).
Keywords for this news article include: Tehran, Iran, Asia, Emerging Technologies, Nanocomposite, Nanocomposites, Nanotechnology
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