Beta phase formation of polypropylene with bentonite filler

Lozano, Tomás y Morales, Ana Beatriz y Lafleur, Pierre G. y Cerino Córdova, Felipe de Jesús y Laria, Julio y Salas, Homero y Barragan, Rodolfo y Pichardo, Roberto (2012) Beta phase formation of polypropylene with bentonite filler. Química Hoy, 2 (2). pp. 14-17. ISSN 2007-1183

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Resumen

In this paper, a study on Polypropylene (PP)/bentonite composites is presented, PP/bentonite composites were prepared using 5%, 10% and 25% on concentration in weight of unmodified and modified bentonite filler. The relative level of the beta phase of the samples was calculated using Wide Angle X-ray Diffraction (WAXD). Differential scanning calorimeter (DSC) was used to observe the melting and crystallization behaviour of the samples. The dispersion state of the composites was observed using optical microscopy. The obtained results show the possibility of inducing the beta phase in PP material using bentonite as filler. However, only the composites of polypropylene with modified bentonite showed the beta signal and higher content was at 10% of filler. Although at 10% of modified bentonite the dispersion is worse than in 5%, at 10% there are more nucleating sites for beta phase formation and consequently more beta content. However, as concentration of the filler increases to 25%, the nucleating sites also increase but its dispersion into the compound becomes worse which strongly decreases the beta phase formation.

Tipo de elemento: Article
Palabras claves no controlados: Composites, polypropylene, beta phase, bentonite, treated filler, dispersion state
Materias: Q Ciencia > QD Química
Divisiones: Ciencias Químicas
Usuario depositante: Química Hoy FCQ
Creadores:
CreadorEmailORCID
Lozano, TomásNO ESPECIFICADONO ESPECIFICADO
Morales, Ana BeatrizNO ESPECIFICADONO ESPECIFICADO
Lafleur, Pierre G.NO ESPECIFICADONO ESPECIFICADO
Cerino Córdova, Felipe de JesúsNO ESPECIFICADONO ESPECIFICADO
Laria, JulioNO ESPECIFICADONO ESPECIFICADO
Salas, HomeroNO ESPECIFICADONO ESPECIFICADO
Barragan, RodolfoNO ESPECIFICADONO ESPECIFICADO
Pichardo, RobertoNO ESPECIFICADONO ESPECIFICADO
Fecha del depósito: 21 Feb 2018 20:24
Última modificación: 02 Oct 2018 14:25
URI: http://eprints.uanl.mx/id/eprint/13486

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