Flammability Properties of Polymer-Layered-Silicate Nanocomposites. Polypropylene and Polystyrene Nanocomposites

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• 作者：Jeffrey W. Gilman ; Catheryn L. Jackson ; Alexander B. Morgan ; Richard Harris ; Jr. ; Evangelos Manias ; Emmanuel P. Giannelis ; Melanie Wuthenow ; Dawn Hilton ; and Shawn H. Phillips
• 刊名：Chemistry of Materials
• 出版年：2000
• 出版时间：July 2000
• 年：2000
• 卷：12
• 期：7
• 页码：1866 - 1873
• 全文大小：565K
• 年卷期：v.12,no.7(July 2000)
• ISSN：1520-5002

文摘

Our continuing study of the mechanism of flammability reduction of polymer-layered-silicate nanocomposites has yielded results for polypropylene-graft-maleic anhydride andpolystyrene-layered-silicate nanocomposites using montmorillonite and fluorohectorite. Conecalorimetry was used to measure the heat release rate and other flammability properties ofthe nanocomposites, under well-controlled combustion conditions. Both the polymer-layered-silicate nanocomposites and the combustion residues were studied by transmission electronmicroscopy and X-ray diffraction. We have found evidence for a common mechanism offlammability reduction. We also found that the type of layered silicate, nanodispersion, andprocessing degradation have an influence on the flammability reduction.