Microwave-assisted synthesis of SiO2 nanoparticles and its application on the flame retardancy of poly styrene and poly carbonate nanocomposites

Various morphologies of silica nanoparticles were synthesized by a microwave-assisted Pechini method. Silica nanostructures were synthesized via a fast reaction between tetra ethyl ortho silicate and ammonia at presence citric acid and other effective agents in Pechini procedure. Then for preparatio...

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Bibliographic Details
Published inJournal of nanostructures Vol. 5; no. 3; pp. 263 - 269
Main Authors A. Esmaeili-Bafghi-Karimabad, D. Ghanbari, M. Salavati-Niasari, H. Safardoust-Hojaghan
Format Journal Article
LanguageEnglish
Published Nanoscience and Nanotechnology Research Center, University of Kashan 01.07.2015
Subjects
Nanocomposite
Nanoparticle
Polymer-Matrix
Silica
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Summary:Various morphologies of silica nanoparticles were synthesized by a microwave-assisted Pechini method. Silica nanostructures were synthesized via a fast reaction between tetra ethyl ortho silicate and ammonia at presence citric acid and other effective agents in Pechini procedure. Then for preparation of polymer-matrix nanocomposites, SiO2 nanoparticles were added to poly carbonate (PC) and poly styrene (PS) matrices. Nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR). The influence of SiO2 nanostructures on the flame retardancy of the polymeric matrix was studied using UL- 94 analysis. Our results show that the SiO2 nanostructure can enhance the flame retardant property of the poly carbonate matrix. PC shows better flame retardancy compare to poly styrene.
ISSN:2251-7871
2251-788X
DOI:10.7508/jns.2015.03.008