Mechanical properties of Polypropylene/Clay nanocomposites: effect of clay content, Polymer/Clay compatibility, and processing conditions

In this work, polypropylene/clay nanocomposites with 0.5, 1, 3, and 5 wt % of montmorillonite (MMT) (unmodified clay) were prepared by intensive mixing at 50 rpm and 10 min of mixing. For the highest clay content (5 wt %), the initial materials or the processing conditions were changed to study thei...

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Autores principales: Tarapow, Anatol Juan Ángel, Bernal, Celina Raquel, Alvarez, Vera Alejandra
Formato: Artículo publishedVersion info:ar-repo/semantics/articulo Artículo
Lenguaje:Inglés
Publicado: Wiley InterScience 2000
Materias:
nanocomposites
processing conditions
polypropylene
morphology
mechanical properties
Acceso en línea:http://rinfi.fi.mdp.edu.ar/handle/123456789/211
Aporte de:
RINFI - Facultad de Ingeniería (UNMdP) de Universidad Nacional de Mar del Plata (UNMdP)
id I29-R182-123456789-211
record_format dspace
spelling I29-R182-123456789-2112024-04-29T12:14:04Z Mechanical properties of Polypropylene/Clay nanocomposites: effect of clay content, Polymer/Clay compatibility, and processing conditions Tarapow, Anatol Juan Ángel Bernal, Celina Raquel Alvarez, Vera Alejandra nanocomposites processing conditions polypropylene morphology mechanical properties In this work, polypropylene/clay nanocomposites with 0.5, 1, 3, and 5 wt % of montmorillonite (MMT) (unmodified clay) were prepared by intensive mixing at 50 rpm and 10 min of mixing. For the highest clay content (5 wt %), the initial materials or the processing conditions were changed to study their Independent effect. On one hand, 10 wt % of PP-graft-MA (PP-g-MA) was incorporated or MMT was replaced by organomodified clays (C10A and C30B). On the other side, for the initial system, the speed of rotation (100 and 150 rpm) and the mixing time (5 and 15 min) were altered. In all cases, the state of the clay inside the matrix (DRX), the degree of dispersion in the micro (SEM) and nano (TEM) scales, and the rheological and mechanical properties were analyzed. It was found that the stiffness increased with clay content, whereas tensile and impact strength did not significantly change. Although intercalated structures were observed in the composites with unmodified clay, in the composites with modified clay or PP-g-MA, improved dispersion of clay in PP was found. The mechanical properties increased accordingly. The degree of dispersion of the filler in the matrix appeared to be unaffected by the changes in the processing conditions introduced. Finally, the elastic modulus was modeled by using an effective filler-parameter model based on Halpin–Tsai equations, which also allowed estimating the relative degree of dispersion. V C 2008 Wiley Periodicals, Inc. J Appl Polym Sci 111: 768–778, 2009 Fil: Bernal, C.R. Advanced Materials Group, INTECIN (UBA-CONICET), Department of Mechanical Engineering, Engineering Faculty, University of Buenos Aires, C1063ACV Buenos Aires, Argentina Alvarez, V.A. Tarapow. Research Institute of Material Science and Technology (INTEMA), Engineering Faculty, National University of Mar del Plata, B7608FDQ Mar del Plata, Argentina 2000-07-23 Article info:eu-repo/semantics/publishedVersion info:ar-repo/semantics/articulo info:eu-repo/semantics/article application/pdf http://rinfi.fi.mdp.edu.ar/handle/123456789/211 eng info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/1.0/ Wiley InterScience
institution Universidad Nacional de Mar del Plata (UNMdP)
institution_str I-29
repository_str R-182
collection RINFI - Facultad de Ingeniería (UNMdP)
language Inglés
topic nanocomposites
processing conditions
polypropylene
morphology
mechanical properties
spellingShingle nanocomposites
processing conditions
polypropylene
morphology
mechanical properties
Tarapow, Anatol Juan Ángel
Bernal, Celina Raquel
Alvarez, Vera Alejandra
Mechanical properties of Polypropylene/Clay nanocomposites: effect of clay content, Polymer/Clay compatibility, and processing conditions
topic_facet nanocomposites
processing conditions
polypropylene
morphology
mechanical properties
description In this work, polypropylene/clay nanocomposites with 0.5, 1, 3, and 5 wt % of montmorillonite (MMT) (unmodified clay) were prepared by intensive mixing at 50 rpm and 10 min of mixing. For the highest clay content (5 wt %), the initial materials or the processing conditions were changed to study their Independent effect. On one hand, 10 wt % of PP-graft-MA (PP-g-MA) was incorporated or MMT was replaced by organomodified clays (C10A and C30B). On the other side, for the initial system, the speed of rotation (100 and 150 rpm) and the mixing time (5 and 15 min) were altered. In all cases, the state of the clay inside the matrix (DRX), the degree of dispersion in the micro (SEM) and nano (TEM) scales, and the rheological and mechanical properties were analyzed. It was found that the stiffness increased with clay content, whereas tensile and impact strength did not significantly change. Although intercalated structures were observed in the composites with unmodified clay, in the composites with modified clay or PP-g-MA, improved dispersion of clay in PP was found. The mechanical properties increased accordingly. The degree of dispersion of the filler in the matrix appeared to be unaffected by the changes in the processing conditions introduced. Finally, the elastic modulus was modeled by using an effective filler-parameter model based on Halpin–Tsai equations, which also allowed estimating the relative degree of dispersion. V C 2008 Wiley Periodicals, Inc. J Appl Polym Sci 111: 768–778, 2009
format Article
publishedVersion
info:ar-repo/semantics/articulo
Artículo
author Tarapow, Anatol Juan Ángel
Bernal, Celina Raquel
Alvarez, Vera Alejandra
author_facet Tarapow, Anatol Juan Ángel
Bernal, Celina Raquel
Alvarez, Vera Alejandra
author_sort Tarapow, Anatol Juan Ángel
title Mechanical properties of Polypropylene/Clay nanocomposites: effect of clay content, Polymer/Clay compatibility, and processing conditions
title_short Mechanical properties of Polypropylene/Clay nanocomposites: effect of clay content, Polymer/Clay compatibility, and processing conditions
title_full Mechanical properties of Polypropylene/Clay nanocomposites: effect of clay content, Polymer/Clay compatibility, and processing conditions
title_fullStr Mechanical properties of Polypropylene/Clay nanocomposites: effect of clay content, Polymer/Clay compatibility, and processing conditions
title_full_unstemmed Mechanical properties of Polypropylene/Clay nanocomposites: effect of clay content, Polymer/Clay compatibility, and processing conditions
title_sort mechanical properties of polypropylene/clay nanocomposites: effect of clay content, polymer/clay compatibility, and processing conditions
publisher Wiley InterScience
publishDate 2000
url http://rinfi.fi.mdp.edu.ar/handle/123456789/211
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AT bernalcelinaraquel mechanicalpropertiesofpolypropyleneclaynanocompositeseffectofclaycontentpolymerclaycompatibilityandprocessingconditions
AT alvarezveraalejandra mechanicalpropertiesofpolypropyleneclaynanocompositeseffectofclaycontentpolymerclaycompatibilityandprocessingconditions
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