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Artículo

Effect of clay concentration on the wear behavior and permeability of polypropylene/clay nanocomposites

Horst, María FernandaIcon ; Tuckart, Walter RobertoIcon ; del Blanco, Liliana Filomena; Failla, Marcelo DanielIcon ; Quinzani, Lidia MariaIcon
Fecha de publicación: 31/07/2012
Editorial: John Wiley & Sons Inc
Revista: Journal of Applied Polymer Science
ISSN: 0021-8995
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
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Resumen

The permeability and wear behavior of nanocomposites based on polypropylene (PP), polypropylene grafted with maleic anhydride (PPg), and montmorillonite (MMT) have been studied. Clay concentrations of 2-15 wt % and a constant PPg:MMT ratio of 3: 1 were considered. The wear behavior of all materials was studied using the "pin-on-disc" technique. The results indicate that, for given clay concentration, the wear resistance decreases with applied load and that the composites are ∼ 20 times more resistant than their matrices. Moreover, the wear rate of the nanocomposites decreases as the clay concentration increases while that of the corresponding matrices increases. The PP, matrices, and composites display similar values of friction coefficient that neither changes with normal load. Additionally, the oxygen permeability of PP is gradually reduced by the increase of both clay and PPg concentration, being the effect of the filler tactoids much larger than that of the compatibilizer.
Palabras clave: BARRIER PROPERTIES , MONTMORILLONITE , NANOCOMPOSITES , POLY(PROPYLENE) , WEAR
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/141269
URL: https://onlinelibrary.wiley.com/doi/10.1002/app.36414
DOI: https://doi.org/10.1002/app.36414
Colecciones
Articulos(INQUISUR)
Articulos de INST.DE QUIMICA DEL SUR
Articulos(PLAPIQUI)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Citación
Horst, María Fernanda; Tuckart, Walter Roberto; del Blanco, Liliana Filomena; Failla, Marcelo Daniel; Quinzani, Lidia Maria; Effect of clay concentration on the wear behavior and permeability of polypropylene/clay nanocomposites; John Wiley & Sons Inc; Journal of Applied Polymer Science; 125; Supl. 1; 31-7-2012; 495-502
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