Comparison of flammability behavior of polyethylene/Brazilian clay nanocomposites and polyethylene/flame retardants

Polyethylene (PE)/Brazilian clay nanocomposites and PE/commercial flame retardant systems were produced via direct melt intercalation. A montmorillonite sample from the Brazilian state of Paraíba was organically modified with esthearildimethylammonium chloride (Praepagen) quaternary ammonium salt an...

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Bibliographic Details
Published in:Materials letters 2007-05, Vol.61 (11), p.2575-2578
Main Authors: Barbosa, Renata, Araújo, Edcleide M., Melo, Tomas Jeferson A., Ito, Edson N.
Format: Article
Language:English
Subjects:
Brazilian clay
Flammability properties
Nanocomposite
X-ray technique
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Summary:Polyethylene (PE)/Brazilian clay nanocomposites and PE/commercial flame retardant systems were produced via direct melt intercalation. A montmorillonite sample from the Brazilian state of Paraíba was organically modified with esthearildimethylammonium chloride (Praepagen) quaternary ammonium salt and has been tested to be used in polymer nanocomposites. The dispersion analysis and the interlayer distance of the clay particles were investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The flammability behavior of the obtained systems was investigated by horizontal burning tests for HB classification, Underwriters Laboratories (UL94). It was observed that the burning rate of PE/Brazilian clay nanocomposites was significantly reduced in relation to pure PE and PE/flame retardant systems, indicating that the PE/Brazilian clay system was more efficient.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2006.09.055