Preparation and Characterization of Cross-Linked Natural Rubber/Multi-Walled Carbon Nanotube/Clay Nanocomposites

Polymer composites have a wide range of applications in electronics, transportation, construction and consuming products.In recent years, polymer/clay nanocomposites have been extensively studied due to improved properties of the material produced. In addition, polymer/nanotube nanocomposite...

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Main Author:	Ghorbani, Mohammadreza
Format:	Thesis
Language:	English
Published:	2011
Subjects:	Rubber Nanotubes Nanocomposites (Materials)
Online Access:	http://psasir.upm.edu.my/id/eprint/19620/1/FS_2011_31.pdf
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spelling	my-upm-ir.196202014-04-22T03:08:56Z Preparation and Characterization of Cross-Linked Natural Rubber/Multi-Walled Carbon Nanotube/Clay Nanocomposites 2011-04 Ghorbani, Mohammadreza Polymer composites have a wide range of applications in electronics, transportation, construction and consuming products.In recent years, polymer/clay nanocomposites have been extensively studied due to improved properties of the material produced. In addition, polymer/nanotube nanocomposites have been given a special attention because of the unique properties of carbon nanotubes. One of the problems of using these fillers separately is the existence of their agglomerations. It was suggested to overcome this problem and also to obtain new properties of the products by using of two fillers. In this study, nanocompositesof natural rubber (NR)/Octadecylamine modified montmorillonite(ODA-MMT), NR/multi-walled carbon nanotube(MWNT) and /MWNT/ODA-MMT, crosslinked by Luperox 231xl-40, were prepared by using melt blending method and characterized. TheNR/ODA-MMT nanocomposites produced were of intercalation and exfoliation types as proved by XRD and TEM analyses. The presence the ODA-MMTin the composites improved their tensile strengthof around 40%, storage modulus and thermal stability. Similar effects (of around 30% increases in tensile strength)were observed when the ODA-MMT was replaced with 3.00 phr MWNT which was dispersed as single and agglomerated fibers, in the composites. When both a mixture MWNT and ODA-MMTwere used in the nanocomposites, the dispersion of the MWNT in the matrix improved, although some of the fibers were still in the agglomerated form. Addition of 3.00 phr of the MWNT increases 9% of the tensile strength higher compared to that of the NR/ODA-MMT nanocomposite butdecreasesthe thermal stability. However, when the MWNT was chemically treated and used in the nanocomposites, both storage modulus and thermal stability were enhanced, despite insignificant effect on the tensile strength. Rubber Nanotubes Nanocomposites (Materials) 2011-04 Thesis http://psasir.upm.edu.my/id/eprint/19620/ http://psasir.upm.edu.my/id/eprint/19620/1/FS_2011_31.pdf application/pdf en public masters Universiti Putra Malaysia Rubber Nanotubes Nanocomposites (Materials) Faculty of Science
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Rubber Nanotubes Nanocomposites (Materials)
spellingShingle	Rubber Nanotubes Nanocomposites (Materials) Ghorbani, Mohammadreza Preparation and Characterization of Cross-Linked Natural Rubber/Multi-Walled Carbon Nanotube/Clay Nanocomposites
description	Polymer composites have a wide range of applications in electronics, transportation, construction and consuming products.In recent years, polymer/clay nanocomposites have been extensively studied due to improved properties of the material produced. In addition, polymer/nanotube nanocomposites have been given a special attention because of the unique properties of carbon nanotubes. One of the problems of using these fillers separately is the existence of their agglomerations. It was suggested to overcome this problem and also to obtain new properties of the products by using of two fillers. In this study, nanocompositesof natural rubber (NR)/Octadecylamine modified montmorillonite(ODA-MMT), NR/multi-walled carbon nanotube(MWNT) and /MWNT/ODA-MMT, crosslinked by Luperox 231xl-40, were prepared by using melt blending method and characterized. TheNR/ODA-MMT nanocomposites produced were of intercalation and exfoliation types as proved by XRD and TEM analyses. The presence the ODA-MMTin the composites improved their tensile strengthof around 40%, storage modulus and thermal stability. Similar effects (of around 30% increases in tensile strength)were observed when the ODA-MMT was replaced with 3.00 phr MWNT which was dispersed as single and agglomerated fibers, in the composites. When both a mixture MWNT and ODA-MMTwere used in the nanocomposites, the dispersion of the MWNT in the matrix improved, although some of the fibers were still in the agglomerated form. Addition of 3.00 phr of the MWNT increases 9% of the tensile strength higher compared to that of the NR/ODA-MMT nanocomposite butdecreasesthe thermal stability. However, when the MWNT was chemically treated and used in the nanocomposites, both storage modulus and thermal stability were enhanced, despite insignificant effect on the tensile strength.
format	Thesis
qualification_level	Master's degree
author	Ghorbani, Mohammadreza
author_facet	Ghorbani, Mohammadreza
author_sort	Ghorbani, Mohammadreza
title	Preparation and Characterization of Cross-Linked Natural Rubber/Multi-Walled Carbon Nanotube/Clay Nanocomposites
title_short	Preparation and Characterization of Cross-Linked Natural Rubber/Multi-Walled Carbon Nanotube/Clay Nanocomposites
title_full	Preparation and Characterization of Cross-Linked Natural Rubber/Multi-Walled Carbon Nanotube/Clay Nanocomposites
title_fullStr	Preparation and Characterization of Cross-Linked Natural Rubber/Multi-Walled Carbon Nanotube/Clay Nanocomposites
title_full_unstemmed	Preparation and Characterization of Cross-Linked Natural Rubber/Multi-Walled Carbon Nanotube/Clay Nanocomposites
title_sort	preparation and characterization of cross-linked natural rubber/multi-walled carbon nanotube/clay nanocomposites
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Science
publishDate	2011
url	http://psasir.upm.edu.my/id/eprint/19620/1/FS_2011_31.pdf
_version_	1747811426331787264

Preparation and Characterization of Cross-Linked Natural Rubber/Multi-Walled Carbon Nanotube/Clay Nanocomposites

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