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Mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites

Rubber toughened polypropylene (PP) nanocomposites (RTPPNC) containing organophilic layered silicates were prepared by means of melt extrusion at 230°C using a co-rotating twin-screw extruder in order to examine the influence of the organoclay and polyethylene octene (POE) as filler and impact modi...

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Main Authors: Lim, Jian Wei, Hassan, Azman, Rahmat, Abd Razak, Wahit, Mat Uzir
Format: Article
Published: Maney Publishing 2006
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/7442/
http://dx.doi.org/10.1179/174328906X79897
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spelling my.utm.74422017-10-23T03:46:41Z http://eprints.utm.my/id/eprint/7442/ Mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites Lim, Jian Wei Hassan, Azman Rahmat, Abd Razak Wahit, Mat Uzir TP Chemical technology Rubber toughened polypropylene (PP) nanocomposites (RTPPNC) containing organophilic layered silicates were prepared by means of melt extrusion at 230°C using a co-rotating twin-screw extruder in order to examine the influence of the organoclay and polyethylene octene (POE) as filler and impact modifier, respectively, on mechanical and fracture properties. The mechanical properties of RTPPNC were studied through tensile, flexural and impact tests. The strength and stiffness of RTPPNC were improved significantly with an increase in the clay content, in the presence of maleic anhydride modified PP (PPgMAH). From the tensile and flexural tests, the optimum loading of organoclay in impact modified PP was found to be 6 wt-%. Conversely, the stiffness and strength of the blends decreased with respect to pure PP as the concentration of POE in the blends was increased. The essential work of fracture (EWF) method was also used to evaluate the fracture toughness of the RTPPNC. EWF measurements indicated that the specific essential work of fracture (we) decreased with an increase in the organoclay content. However, additions of POE elastomer are beneficial in enhancing the we of the PP blends. we appeared to increase with increasing POE content up to 20 wt-%. Maney Publishing 2006 Article PeerReviewed Lim, Jian Wei and Hassan, Azman and Rahmat, Abd Razak and Wahit, Mat Uzir (2006) Mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites. Plastics, Rubber and Composites Processing and Applications, 35 (1). pp. 37-46. ISSN 0959-8111 http://dx.doi.org/10.1179/174328906X79897 10.1179/174328906X79897
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Lim, Jian Wei
Hassan, Azman
Rahmat, Abd Razak
Wahit, Mat Uzir
Mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites
description Rubber toughened polypropylene (PP) nanocomposites (RTPPNC) containing organophilic layered silicates were prepared by means of melt extrusion at 230°C using a co-rotating twin-screw extruder in order to examine the influence of the organoclay and polyethylene octene (POE) as filler and impact modifier, respectively, on mechanical and fracture properties. The mechanical properties of RTPPNC were studied through tensile, flexural and impact tests. The strength and stiffness of RTPPNC were improved significantly with an increase in the clay content, in the presence of maleic anhydride modified PP (PPgMAH). From the tensile and flexural tests, the optimum loading of organoclay in impact modified PP was found to be 6 wt-%. Conversely, the stiffness and strength of the blends decreased with respect to pure PP as the concentration of POE in the blends was increased. The essential work of fracture (EWF) method was also used to evaluate the fracture toughness of the RTPPNC. EWF measurements indicated that the specific essential work of fracture (we) decreased with an increase in the organoclay content. However, additions of POE elastomer are beneficial in enhancing the we of the PP blends. we appeared to increase with increasing POE content up to 20 wt-%.
format Article
author Lim, Jian Wei
Hassan, Azman
Rahmat, Abd Razak
Wahit, Mat Uzir
author_facet Lim, Jian Wei
Hassan, Azman
Rahmat, Abd Razak
Wahit, Mat Uzir
author_sort Lim, Jian Wei
title Mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites
title_short Mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites
title_full Mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites
title_fullStr Mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites
title_full_unstemmed Mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites
title_sort mechanical behaviour and fracture toughness evaluation of rubber toughened polypropylene nanocomposites
publisher Maney Publishing
publishDate 2006
url http://eprints.utm.my/id/eprint/7442/
http://dx.doi.org/10.1179/174328906X79897
_version_ 1643644775133347840
score 13.211869

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