title: Novel chemical synthesis and characterization of copper pyrovanadate nanoparticles and its influence on the flame retardancy of polymeric nanocomposites.
abstract: In this work, copper pyrovanadate (Cu3V2O7(OH)2(H2O)2) nanoparticles have been synthesized by a simple and rapid chemical precipitation method. Different copper-organic complexes were used to control the size and morphology of products. The morphology and structure of the as-synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectrum, electron dispersive X-ray spectroscopy (EDX), thermal gravimetric analysis (TGA), differential thermal analysis (DTA) and photoluminescence (PL) spectroscopy. The influence of copper pyrovanadate nanostructures on the flame retardancy of the polystyrene, poly vinyl alcohol and cellulose acetate was studied. Dispersed nanoparticles play the role of a magnetic barrier layer, which slows down product volatilization and prevents the flame and oxygen from the sample during decomposition of the polymer. Cu3V2O7(OH)2(H2O)2 is converted to Cu3V2O8 with an endothermic reaction which simultaneously releases water and decrease the temperature of the flame region.
authors.affiliation: Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P. O. Box.87317-51167, I. R. Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Ghiyasiyan-Arani
authors.affiliation: Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Masjedi-Arani
authors.affiliation: Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran.
authors.forename: Davood
authors.initials: D
authors.lastname: Ghanbari
authors.affiliation: Nanotechnology &Catalysis Research Centre (NANOCAT), IPS Building, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Samira
authors.initials: S
authors.lastname: Bagheri
authors.affiliation: Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P. O. Box.87317-51167, I. R. Iran.
authors.forename: Masoud
authors.initials: M
authors.lastname: Salavati-Niasari