Title of article
A Fast Method for Synthesis Magnesium Hydroxide Nanoparticles, Thermal Stable and Flame Retardant Poly vinyl alcohol Nanocomposite
Author/Authors
Yousefi ، Mohammad نويسنده DeparDetment of Chemistry, College of Basic Science,Yadegar – e- Imam Khomeini (RAH) Shahr-e-Rey Branch, Islamic Azad University, Tehran, Iran ,
Issue Information
فصلنامه با شماره پیاپی 0 سال 2014
Pages
6
From page
383
To page
388
Abstract
در اين مقاله نانوذرات منيزيم هيدروكسيد به عنوان تاخيرانداز شعله اي موثر با روش مايكروويو سنتز شدند. تاثير انواع مختلف سورفكتانت اعم از كاتيوني، آنيوني و پليمري بر روي مورفولوژي نانوذرات بررسي گرديد. محصول سنتز شده با كمك پراش اشعه X (XRD)، ميكروسكوپ الكتروني روبشي (SEM) و طيف سنجي مادون قرمز (IR) مورد بررسي قرار گرفت. براي بررسي تاثير نانوذرات Mg(OH)2 بر پايداري گرمايي و تاخيراندازندگي از آناليز حرارتي ترموگراويمتري (TGA) و UL-94 استفاده شد. در حضور نانوذرات Mg(OH)2، تخريب حرارتي به سمت دماهاي بالاتر جابجا گشته و تاخيراندازندگي شعته نيز افزايش مي يابد.
Abstract
Magnesium hydroxide nanostructures as an effective flame retardant
were synthesized by a facile and rapid microwave reaction. The
effect of different surfactants such as cationic, anionic and polymeric
on the morphology of magnesium hydroxide nanostructures was
investigated. Nanostructures were characterized by X-ray diffraction
(XRD), scanning electron microscopy (SEM) and Fourier transform
infrared (FT-IR) spectroscopy. The influence of Mg(OH)2
nanostructures on the thermal stability and flame retardancy of the
poly vinyl alcohol (PVA) matrix was studied using
thermogravimetric analysis (TGA) and UL-94 respectively. Thermal
decomposition of the nanocomposites shift towards higher
temperature in the presence of Mg(OH)2 nanostructures. The
enhancement of thermal stability and flame retardancy of
nanocomposites is due to the endothermic decomposition of
Mg(OH)2 and release of water which dilutes combustible gases.
Journal title
Journal of NanoStructures
Serial Year
2014
Journal title
Journal of NanoStructures
Record number
2211545
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