Authors Shabanian, M. ; Khoobi, M. ; Hemati, F. ; Khonakdar, H. A. ; Faghigi, K. ; Wagenknecht, U. ; Sadat Ebrahimi, S. E. ; shafiee, A.
Title Effects of polyethyleneimine-functionalized MCM-41 on flame retardancy and thermal of polyvinyl alcohol
Date 01.04.2015
Number 46803
Abstract Hyperbranched polyethylenimine (PEI)-functionalized mesoporous silica (MCM@PEI) was synthesized and used to produce poly(vinyl alcohol) (PVA) nanocomposites. The modified nanofiller was characterized with infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N2 adsorption. When compared with pure mesoporous silica (MCM), the MCM@PEI nanoparticles exhibited better dispersion in the PVA matrix. The effects of MCM@PEI on the thermal and flame properties of PVA nanocomposites were also studied. Improvement in the thermal properties was confirmed by enhanced thermal stability and char yield. Incorporation of MCM@PEI in PVA led to a significant drop in the heat release rate and the total heat release.
Publisher Particuology
Citation Particuology 19 (2015) 14-21
Tags nanocomposite pva nanofiller mcm-41

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