Título

Study on the combustion behavior of high impact polystyrene nanocomposites produced by different extrusion processes

Autor

GUADALUPE SANCHEZ OLIVARES

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc/4.0

Materias

Nanocompuestos – materiales - (LEMD) Reología - (LEMD) INGENIERÍA Y TECNOLOGÍA - (CTI) CIENCIAS TECNOLÓGICAS - (CTI) TECNOLOGÍA DE MATERIALES - (CTI) RESISTENCIA DE MATERIALES - (CTI) RESISTENCIA DE MATERIALES - (CTI)

Resumen o descripción

The combustion behavior of a blend made of high impact polystyrene (HIPS) with sodium montmorillonite (MMT-Na+) and triphenyl phosphite (TPP), as a halogen-free flame retardant, is analyzed in detail in this work. The blend is processed through various extrusion methods aimed to improve clay dispersion. The UL94 method in vertical position, oxygen index and cone calorimetric measurements assess HIPS blend behavior in combustion. TGA, FTIR, SEM and X-ray measurements, together with mechanical and rheological tests evaluate the thermal degradation, morphology, intercalation and degree of dispersion of particles. The use of a static-mixing die placed at the extreme of a single screw extruder improves clay platelets distribution and reduces the peak heat release rate better than employing a twin screw extrusión process. In addition, mechanical and rheological properties are affected substantially by changing the extrusion process. A correlation between clay dispersion and HIPS fire retardant properties is found, as the peak heat release rate decreases with good clay dispersion in cone calorimetric tests.

Fecha de publicación

2008

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://ciatec.repositorioinstitucional.mx/jspui/handle/1019/188

Formato

application/pdf

Idioma

Inglés

Audiencia

Empresas

Estudiantes

Investigadores

Maestros

Repositorio Orígen

Repositorio Institucional CIATEC

Descargas

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