Oxygen barrier properties of new thermoplastic natural rubber nanocomposites

Nanocomposites of linear low-density polyethylene (LLDPE)/ natural rubber (NR)/liquid natural rubber (LNR) blend denoted as TPNR with montmorillonite-based organoclay (OMMT) were prepared using melt blending method. The melt blending of LLDPE/NR/LNR with a composition of 70:20:10 formed blends. For...

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Main Authors:	Hassan, Noor Azlina, Ahmad, Sahrim, Rasid, Rozaidi, Abd Razak, Shamsul Bahri, Y. , Yamamoto, S. , Kawahara
Format:	Article
Language:	English
Published:	Taylor & Francis 2011
Subjects:	Q Science (General)
Online Access:	http://irep.iium.edu.my/7327/ http://irep.iium.edu.my/7327/ http://irep.iium.edu.my/7327/ http://irep.iium.edu.my/7327/1/Oxygen_barrier_properties_of_new_thermoplastic_natural_rubber_nanocomposites.pdf

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spelling	iium-73272012-08-15T04:22:26Z http://irep.iium.edu.my/7327/ Oxygen barrier properties of new thermoplastic natural rubber nanocomposites Hassan, Noor Azlina Ahmad, Sahrim Rasid, Rozaidi Abd Razak, Shamsul Bahri Y. , Yamamoto S. , Kawahara Q Science (General) Nanocomposites of linear low-density polyethylene (LLDPE)/ natural rubber (NR)/liquid natural rubber (LNR) blend denoted as TPNR with montmorillonite-based organoclay (OMMT) were prepared using melt blending method. The melt blending of LLDPE/NR/LNR with a composition of 70:20:10 formed blends. For better dispersion of nanoclay in the TPNR blend, MA-PE was used as a coupling agent. The nanoclay dispersion was investigated by X-ray diffraction (XRD), and a novel method using permeability measurements data in a permeability model. The measured dspacing data proved a good dispersion of nanoclay at low clay contents. The permeability model for flake-filled polymer was used to estimate the aspect ratio of nanoclay platelets in the blend nanocomposites. The oxygen barrier property of the TPNR blend improved about two-fold by adding only 2 wt% of organoclay. Differential scanning calorimetry showed an increase in crystallinity up to 20% suggesting an increase in spherulite growth, by the increased in melting temperature. The increase in the barrier property of the blend with the induction in crystallinity indicates the dominant role of organoclay platelets in barrier improvement. Scanning electron micrographs of tensile fracture surface of the nanocomposite, exhibited a very ductile surface indicating a good compatibility of LLDPE and NR and also, a possible contribution of nanoparticles to the deformation mechanism, such as extensive shear yielding in the polymer blend. The transmission electron micrograph, showed an intensive intercalation structure and exfoliation structure with the presence of MA-PE. Taylor & Francis 2011-11-11 Article PeerReviewed application/pdf en http://irep.iium.edu.my/7327/1/Oxygen_barrier_properties_of_new_thermoplastic_natural_rubber_nanocomposites.pdf Hassan, Noor Azlina and Ahmad, Sahrim and Rasid, Rozaidi and Abd Razak, Shamsul Bahri and Y. , Yamamoto and S. , Kawahara (2011) Oxygen barrier properties of new thermoplastic natural rubber nanocomposites. Polymer-Plastics Technology and Engineering, 50. pp. 1564-1569. ISSN 1525-6111 (O), 0360-2559 (P) http://dx.doi.org/10.1080/03602559.2011.603787 10.1080/03602559.2011.603787
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Hassan, Noor Azlina Ahmad, Sahrim Rasid, Rozaidi Abd Razak, Shamsul Bahri Y. , Yamamoto S. , Kawahara Oxygen barrier properties of new thermoplastic natural rubber nanocomposites
description	Nanocomposites of linear low-density polyethylene (LLDPE)/ natural rubber (NR)/liquid natural rubber (LNR) blend denoted as TPNR with montmorillonite-based organoclay (OMMT) were prepared using melt blending method. The melt blending of LLDPE/NR/LNR with a composition of 70:20:10 formed blends. For better dispersion of nanoclay in the TPNR blend, MA-PE was used as a coupling agent. The nanoclay dispersion was investigated by X-ray diffraction (XRD), and a novel method using permeability measurements data in a permeability model. The measured dspacing data proved a good dispersion of nanoclay at low clay contents. The permeability model for flake-filled polymer was used to estimate the aspect ratio of nanoclay platelets in the blend nanocomposites. The oxygen barrier property of the TPNR blend improved about two-fold by adding only 2 wt% of organoclay. Differential scanning calorimetry showed an increase in crystallinity up to 20% suggesting an increase in spherulite growth, by the increased in melting temperature. The increase in the barrier property of the blend with the induction in crystallinity indicates the dominant role of organoclay platelets in barrier improvement. Scanning electron micrographs of tensile fracture surface of the nanocomposite, exhibited a very ductile surface indicating a good compatibility of LLDPE and NR and also, a possible contribution of nanoparticles to the deformation mechanism, such as extensive shear yielding in the polymer blend. The transmission electron micrograph, showed an intensive intercalation structure and exfoliation structure with the presence of MA-PE.
format	Article
author	Hassan, Noor Azlina Ahmad, Sahrim Rasid, Rozaidi Abd Razak, Shamsul Bahri Y. , Yamamoto S. , Kawahara
author_facet	Hassan, Noor Azlina Ahmad, Sahrim Rasid, Rozaidi Abd Razak, Shamsul Bahri Y. , Yamamoto S. , Kawahara
author_sort	Hassan, Noor Azlina
title	Oxygen barrier properties of new thermoplastic natural rubber nanocomposites
title_short	Oxygen barrier properties of new thermoplastic natural rubber nanocomposites
title_full	Oxygen barrier properties of new thermoplastic natural rubber nanocomposites
title_fullStr	Oxygen barrier properties of new thermoplastic natural rubber nanocomposites
title_full_unstemmed	Oxygen barrier properties of new thermoplastic natural rubber nanocomposites
title_sort	oxygen barrier properties of new thermoplastic natural rubber nanocomposites
publisher	Taylor & Francis
publishDate	2011
url	http://irep.iium.edu.my/7327/ http://irep.iium.edu.my/7327/ http://irep.iium.edu.my/7327/ http://irep.iium.edu.my/7327/1/Oxygen_barrier_properties_of_new_thermoplastic_natural_rubber_nanocomposites.pdf
first_indexed	2023-09-18T20:16:40Z
last_indexed	2023-09-18T20:16:40Z
_version_	1777407833415876608

Oxygen barrier properties of new thermoplastic natural rubber nanocomposites

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