2000
DOI: 10.1021/cm0001760
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Flammability Properties of Polymer−Layered-Silicate Nanocomposites. Polypropylene and Polystyrene Nanocomposites

Abstract: Our continuing study of the mechanism of flammability reduction of polymer−layered-silicate nanocomposites has yielded results for polypropylene-graft-maleic anhydride and polystyrene−layered-silicate nanocomposites using montmorillonite and fluorohectorite. Cone calorimetry was used to measure the heat release rate and other flammability properties of the nanocomposites, under well-controlled combustion conditions. Both the polymer−layered-silicate nanocomposites and the combustion residues were studied by tr… Show more

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Cited by 1,481 publications
(975 citation statements)
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References 19 publications
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“…It is usually felt that the change in the peak heat release rate occurs due to a change in the mass loss rate and there is a comparable reduction in both with both surfactants and all three polymers. The two clays give similar results and are comparable to literature data for PS, ABS and HIPS [25], [29], [30] and [31]. Also the TGA behavior is comparable to nanocomposites of crystallizable syndiotactic-PS with alkyl-imidazolium modified montmorillonites [24].…”
supporting
confidence: 86%
“…It is usually felt that the change in the peak heat release rate occurs due to a change in the mass loss rate and there is a comparable reduction in both with both surfactants and all three polymers. The two clays give similar results and are comparable to literature data for PS, ABS and HIPS [25], [29], [30] and [31]. Also the TGA behavior is comparable to nanocomposites of crystallizable syndiotactic-PS with alkyl-imidazolium modified montmorillonites [24].…”
supporting
confidence: 86%
“…For MMT/modified polymer nanocomposites, the reduction in PHRR has been explained by a chemical and physical action of the inorganic layers dispersed in the polymer matrix [8] and [27].…”
mentioning
confidence: 99%
“…A desordem causada na organização cristalina da argila, devido à entrada das cadeias poliméricas em sua estrutura, aumenta ainda mais este espaçamento, podendo levar à esfoliação das lamelas (Figura 3) [1,2] . organofílica advêm da íntima interface polímero-carga proporcionada pela forte interação em escala nanométrica [8,[13][14][15][16][17] . O emprego de quantidades reduzidas dessas nanocargas sugere preservação das propriedades da matriz polimérica aliada ao ganho em certas características do nanomaterial sobre o polímero puro.…”
Section: Difração De Raios Xunclassified