The Effect of Mg(OH)2 Nanoparticles on the Thermal Stability and Flame Retardancy of Paraloid Nanocomposites

Momenian, H. R.; Salavati-Niasari, M.; Ghanbari, D.; Pedram, B.; Mozaffar, F.; Gholamrezaei, S.

doi:10.7508/jns.2014.01.012

The Effect of Mg(OH)2 Nanoparticles on the Thermal Stability and Flame Retardancy of Paraloid Nanocomposites

Document Type : Research Paper

Authors

H. R. Momenian ¹

M. Salavati-Niasari ²

D. Ghanbari ²

B. Pedram ¹

F. Mozaffar ¹

S. Gholamrezaei ²

¹ Faculty of Conservation, Art University of Isfahan, Isfahan

² Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P.O. Box 87317-51167, I. R. Iran

10.7508/jns.2014.01.012

Abstract

Paraloid-Mg(OH)₂ nanocomposites were synthesized via sonochemical method. Nanostructures were characterized by XRD and SEM. Thermal stability behavior of paraloid filled with magnesium hydroxide was investigated by thermogravimetric analysis (TGA). The influence of Mg(OH)₂ nanostructures on the flame retardancy of the paraloid matrix was studied using UL-94 analysis. Our results show that the Mg(OH)₂ nanostructure can enhance the flame retardant property of the paraloid matrix. The enhancement of flame retardancy of nanocomposite is due to endothermic decomposition of Mg(OH)₂ that absorbs energy and simultaneously releases of water (dilutes combustible gases). Photo-catalytic activity of the nanoparticles was evaluated by monitoring the degradation of methyl orange (MeO) in an aqueous solution.

Keywords

Nanoparticle

Nanocomposite

Paraloid

Cultural heritage