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Khalil Faghihi

Khalil Faghihi

Academic rank: Professor
ORCID: https://orcid.org/0000-0001-9884-1788
Education: PhD.
ScopusId: 6603751266
Faculty: Science
Address: Arak University
Phone:

Research

Title
Effects of polyethyleneimine-functionalized MCM-41 on flameretardancy and thermal stability of polyvinyl alcohol
Type
JournalPaper
Keywords
Nanocompositeو PVA وNanofiller وMCM-41
Year
2015
Journal Particuology
DOI
Researchers Mehdi Khoobi ، HA Khonakdar ، Farideh Hemati ، Khalil Faghihi ، Udo Wagenknecht ، Seyed esmaeil Sadat ebrahimi ، Abbas Shafieea ، Meisam Shabanian

Abstract

Hyperbranched polyethylenimine (PEI)-functionalized mesoporous silica (MCM@PEI) was synthesizedand used to produce poly(vinyl alcohol) (PVA) nanocomposites. The modified nanofiller was charac-terized with infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electronmicroscopy, transmission electron microscopy, and N2adsorption. When compared with pure meso-porous silica (MCM), the MCM@PEI nanoparticles exhibited better dispersion in the PVA matrix. Theeffects 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 heatrelease.