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Flame Retardant and Smoke Suppressant of Fe‐Organophilic Montmorillonite in Polyvinyl Chloride Nanocomposites
Author(s) -
KONG QingHong,
ZHANG JunHao,
MA JingJun,
YI ChengWu,
LI FuCai,
LIU He,
LU WeiLiang
Publication year - 2008
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200890404
Subject(s) - fire retardant , limiting oxygen index , montmorillonite , polyvinyl chloride , nanocomposite , thermogravimetric analysis , chemistry , chemical engineering , pyrolysis , smoke , intercalation (chemistry) , polymer chemistry , nuclear chemistry , inorganic chemistry , organic chemistry , char , engineering
Two kinds of polyvinyl chloride (PVC)/organophilic montmorillonite (OMT) nanocomposites are prepared by a melt intercalation method. This study has been designed to determine if the presence of iron and zinc ions in the structure of montmorillonite (MMT) lattice can affect thermal, flame retardant and smoke suppressant properties. The information about the morphological structure of PVC/OMT nanocomposites was obtained using X‐ray diffraction and transmission electron microscopy. The thermal and flame retardant properties of the nanocomposites were characterized by thermogravimetric analysis, limiting oxygen index and smoke density. The nanocomposites based on Fe‐OMT exhibit better thermal, flame retardant properties and lower degradation degree than those of pure PVC. The degradation mechanism was studied by pyrolysis, gas chromatography and mass spectrometry (Py‐GC‐MS).