Rheological behaviors and mechanical properties of kenaf-polypropylene composites / Amirul Hafiz Johari

This project is carried out to study the mechanical and rheological properties of kenaf powder reinforcement with polypropylene (PP). The effects of incorporating coupling agent which is maleic anhydride grafted polypropylene (MAPP) at 3wt% to the strength and toughness of the composite were investi...

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Main Author:	Johari, Amirul Hafiz
Format:	Thesis
Language:	English
Published:	2010
Subjects:	Mechanics applied to machinery Dynamics
Online Access:	https://ir.uitm.edu.my/id/eprint/36770/1/36770.pdf
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id	my-uitm-ir.36770
record_format	uketd_dc
spelling	my-uitm-ir.367702020-11-16T05:26:25Z Rheological behaviors and mechanical properties of kenaf-polypropylene composites / Amirul Hafiz Johari 2010 Johari, Amirul Hafiz Mechanics applied to machinery. Dynamics This project is carried out to study the mechanical and rheological properties of kenaf powder reinforcement with polypropylene (PP). The effects of incorporating coupling agent which is maleic anhydride grafted polypropylene (MAPP) at 3wt% to the strength and toughness of the composite were investigated. The size of the kenaf powder was selected is limited to 150\|im with the different kenaf ratio of 10 wt%, 20 wt%, and 30 wt% kenaf; with and without MAPP, mixed with polypropylene and compounded using hot press machine. Tensile and flexural tests were performed to evaluate the tensile and flexural properties. The composite with 30% of kenaf with MAPP exhibited the highest tensile stress, flexural stress and modulus. Tensile and flexural properties were enhanced with the addition of kenaf powder. However, the sample with MAPP gave the higher strength than the sample without MAPP. The rheological behavior of the compounding material was analyzed using capillary rheometer at a range of temperature allowed investigation of the relationship between pressure, volume, and temperature. The rheology analysis of kenaf-polypropylene exhibited that 30 wt% kenaf having the higher viscosity than other percent of kenaf at operating temperature of 190°C. Fracture surface observation revealed that the failure mainly due to fiber delamination in addition to ductile failure of PP. However, to compete with glass fiber effectively, further research is needed to improve natural fiber processing. 2010 Thesis https://ir.uitm.edu.my/id/eprint/36770/ https://ir.uitm.edu.my/id/eprint/36770/1/36770.pdf text en public degree Universiti Teknologi MARA Faculty of Mechanical Engineering Nordin, Nor Amalina
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Nordin, Nor Amalina
topic	Mechanics applied to machinery Dynamics
spellingShingle	Mechanics applied to machinery Dynamics Johari, Amirul Hafiz Rheological behaviors and mechanical properties of kenaf-polypropylene composites / Amirul Hafiz Johari
description	This project is carried out to study the mechanical and rheological properties of kenaf powder reinforcement with polypropylene (PP). The effects of incorporating coupling agent which is maleic anhydride grafted polypropylene (MAPP) at 3wt% to the strength and toughness of the composite were investigated. The size of the kenaf powder was selected is limited to 150\|im with the different kenaf ratio of 10 wt%, 20 wt%, and 30 wt% kenaf; with and without MAPP, mixed with polypropylene and compounded using hot press machine. Tensile and flexural tests were performed to evaluate the tensile and flexural properties. The composite with 30% of kenaf with MAPP exhibited the highest tensile stress, flexural stress and modulus. Tensile and flexural properties were enhanced with the addition of kenaf powder. However, the sample with MAPP gave the higher strength than the sample without MAPP. The rheological behavior of the compounding material was analyzed using capillary rheometer at a range of temperature allowed investigation of the relationship between pressure, volume, and temperature. The rheology analysis of kenaf-polypropylene exhibited that 30 wt% kenaf having the higher viscosity than other percent of kenaf at operating temperature of 190°C. Fracture surface observation revealed that the failure mainly due to fiber delamination in addition to ductile failure of PP. However, to compete with glass fiber effectively, further research is needed to improve natural fiber processing.
format	Thesis
qualification_level	Bachelor degree
author	Johari, Amirul Hafiz
author_facet	Johari, Amirul Hafiz
author_sort	Johari, Amirul Hafiz
title	Rheological behaviors and mechanical properties of kenaf-polypropylene composites / Amirul Hafiz Johari
title_short	Rheological behaviors and mechanical properties of kenaf-polypropylene composites / Amirul Hafiz Johari
title_full	Rheological behaviors and mechanical properties of kenaf-polypropylene composites / Amirul Hafiz Johari
title_fullStr	Rheological behaviors and mechanical properties of kenaf-polypropylene composites / Amirul Hafiz Johari
title_full_unstemmed	Rheological behaviors and mechanical properties of kenaf-polypropylene composites / Amirul Hafiz Johari
title_sort	rheological behaviors and mechanical properties of kenaf-polypropylene composites / amirul hafiz johari
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Mechanical Engineering
publishDate	2010
url	https://ir.uitm.edu.my/id/eprint/36770/1/36770.pdf
_version_	1783734360540708864

Rheological behaviors and mechanical properties of kenaf-polypropylene composites / Amirul Hafiz Johari

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