Influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (NR/LNR/LLDPE) composites / Hazwani Halim

In this research, the plastics (LLDPE) were mixed together with liquid natural rubber (LNR) as compatibilizer and natural rubber (NR) in a percentage of volume ratios 50:10:40 respectively to perform thermoplastic natural rubber (TPNR). This TPNR was reinforced with two types of MWNTs (MWNTs 1 and M...

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Main Author:	Halim, Hazwani
Format:	Thesis
Language:	English
Published:	2013
Online Access:	https://ir.uitm.edu.my/id/eprint/18313/2/TM_HAZWANI%20HALIM%20AS%2013_5.pdf
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spelling	my-uitm-ir.183132023-03-03T02:06:08Z Influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (NR/LNR/LLDPE) composites / Hazwani Halim 2013-10 Halim, Hazwani In this research, the plastics (LLDPE) were mixed together with liquid natural rubber (LNR) as compatibilizer and natural rubber (NR) in a percentage of volume ratios 50:10:40 respectively to perform thermoplastic natural rubber (TPNR). This TPNR was reinforced with two types of MWNTs (MWNTs 1 and MWNTs 2). MWNTs 1 is untreated MWNTs (MWNTs without acid treatment) while MWNTs 2 is acid treated MWNTs. MWNTs has been choosen to be a reinforced material (filler) in this study because its exhibit unique mechanical, electronic and magnetic properties. Therefore, this may suggest the enhancement of composites properties as well as the application of it. This blend of composites was prepared via melt blending method using Haake 600 p internal mixer. Based on the optimum parameter, these nanocomposites were prepared at 140 °C temperature, 55 rpm of mixing speed and 13 minutes of processing time. The mechanical and thermal properties of this nanocomposites have been studied with respect to the various composition of MWNTs (2 wt%, 4 wt%, 6 wt% and 8 wt%) . Dynamic mechanical analysis (DMA) and morphological observation also conducted on the composites sample. It has been found that the tensile strength, Young’s modulus, and impact strength increase when the concentration of MWCNTs increase until 4 wt%. SEM micrographs have confirmed good dispersion of 2-4 wt% of MWNTs in TPNR. However the dispersion is low at higher content of MWNTs due to agglomeration of nanotubes inside the matrix. The thermal conductivity of the nanocomposites has increased with addition of MWNTs at various compositions. 2013-10 Thesis https://ir.uitm.edu.my/id/eprint/18313/ https://ir.uitm.edu.my/id/eprint/18313/2/TM_HAZWANI%20HALIM%20AS%2013_5.pdf text en public mphil masters Universiti Teknologi MARA Faculty of Applied Sciences
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
description	In this research, the plastics (LLDPE) were mixed together with liquid natural rubber (LNR) as compatibilizer and natural rubber (NR) in a percentage of volume ratios 50:10:40 respectively to perform thermoplastic natural rubber (TPNR). This TPNR was reinforced with two types of MWNTs (MWNTs 1 and MWNTs 2). MWNTs 1 is untreated MWNTs (MWNTs without acid treatment) while MWNTs 2 is acid treated MWNTs. MWNTs has been choosen to be a reinforced material (filler) in this study because its exhibit unique mechanical, electronic and magnetic properties. Therefore, this may suggest the enhancement of composites properties as well as the application of it. This blend of composites was prepared via melt blending method using Haake 600 p internal mixer. Based on the optimum parameter, these nanocomposites were prepared at 140 °C temperature, 55 rpm of mixing speed and 13 minutes of processing time. The mechanical and thermal properties of this nanocomposites have been studied with respect to the various composition of MWNTs (2 wt%, 4 wt%, 6 wt% and 8 wt%) . Dynamic mechanical analysis (DMA) and morphological observation also conducted on the composites sample. It has been found that the tensile strength, Young’s modulus, and impact strength increase when the concentration of MWCNTs increase until 4 wt%. SEM micrographs have confirmed good dispersion of 2-4 wt% of MWNTs in TPNR. However the dispersion is low at higher content of MWNTs due to agglomeration of nanotubes inside the matrix. The thermal conductivity of the nanocomposites has increased with addition of MWNTs at various compositions.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Halim, Hazwani
spellingShingle	Halim, Hazwani Influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (NR/LNR/LLDPE) composites / Hazwani Halim
author_facet	Halim, Hazwani
author_sort	Halim, Hazwani
title	Influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (NR/LNR/LLDPE) composites / Hazwani Halim
title_short	Influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (NR/LNR/LLDPE) composites / Hazwani Halim
title_full	Influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (NR/LNR/LLDPE) composites / Hazwani Halim
title_fullStr	Influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (NR/LNR/LLDPE) composites / Hazwani Halim
title_full_unstemmed	Influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (NR/LNR/LLDPE) composites / Hazwani Halim
title_sort	influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (nr/lnr/lldpe) composites / hazwani halim
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Applied Sciences
publishDate	2013
url	https://ir.uitm.edu.my/id/eprint/18313/2/TM_HAZWANI%20HALIM%20AS%2013_5.pdf
_version_	1783733658865106944

Influence of carbon nanotubes on the thermal and mechanical properties of thermoplastic natural rubber (NR/LNR/LLDPE) composites / Hazwani Halim

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