Mechanical properties of calcium carbonate and coconut shell filled polypropylene composites

Natural lignocellulosics and mineral fillers have an outstanding potential as reinforcement in thermoplastics. This study deals with the preparation of coconut shell lignocellulosic and calcium carbonate mineral filler composites by reactive extrusion processing in which good interfacial adhesion is...

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Main Author:	Heidari, Mehdi
Format:	Thesis
Language:	English
Published:	2012
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/40648/1/MehdiHeidariMFKK2012.pdf
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id	my-utm-ep.40648
record_format	uketd_dc
spelling	my-utm-ep.406482017-09-25T05:56:26Z Mechanical properties of calcium carbonate and coconut shell filled polypropylene composites 2012-10 Heidari, Mehdi TP Chemical technology Natural lignocellulosics and mineral fillers have an outstanding potential as reinforcement in thermoplastics. This study deals with the preparation of coconut shell lignocellulosic and calcium carbonate mineral filler composites by reactive extrusion processing in which good interfacial adhesion is generated by a coupling agent of maleic anhydride. Polypropylene (PP) matrix was modified by reacting with maleic anhydride and subsequently bonded to the surface of the modified lignocellulosic component, in-situ. The PP was extruded with the fillers to form the compatibilized composite. These composite blends were then injection molded for mechanical characterization. Typical mechanical tests like tensile strength, flexural strength and Izod impact energy were performed and the results are reported. Also water absorption test was performed to assess the absorption value of moisture in the composite. Tensile properties of coconut shell and calcium carbonate filled polypropylene composites was increased and also the impact strength and elongation at break were increased too. Water absorption of PP filled coconut shell was increased significantly. These finding are discussed in view of the improved adhesion resulting from reactions and enhanced polar interactions at phase boundaries. The mechanical properties indicate that these fillers are desired as reinforcement for making a good composite. 2012-10 Thesis http://eprints.utm.my/id/eprint/40648/ http://eprints.utm.my/id/eprint/40648/1/MehdiHeidariMFKK2012.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Chemical Engineering Faculty of Chemical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Heidari, Mehdi Mechanical properties of calcium carbonate and coconut shell filled polypropylene composites
description	Natural lignocellulosics and mineral fillers have an outstanding potential as reinforcement in thermoplastics. This study deals with the preparation of coconut shell lignocellulosic and calcium carbonate mineral filler composites by reactive extrusion processing in which good interfacial adhesion is generated by a coupling agent of maleic anhydride. Polypropylene (PP) matrix was modified by reacting with maleic anhydride and subsequently bonded to the surface of the modified lignocellulosic component, in-situ. The PP was extruded with the fillers to form the compatibilized composite. These composite blends were then injection molded for mechanical characterization. Typical mechanical tests like tensile strength, flexural strength and Izod impact energy were performed and the results are reported. Also water absorption test was performed to assess the absorption value of moisture in the composite. Tensile properties of coconut shell and calcium carbonate filled polypropylene composites was increased and also the impact strength and elongation at break were increased too. Water absorption of PP filled coconut shell was increased significantly. These finding are discussed in view of the improved adhesion resulting from reactions and enhanced polar interactions at phase boundaries. The mechanical properties indicate that these fillers are desired as reinforcement for making a good composite.
format	Thesis
qualification_level	Master's degree
author	Heidari, Mehdi
author_facet	Heidari, Mehdi
author_sort	Heidari, Mehdi
title	Mechanical properties of calcium carbonate and coconut shell filled polypropylene composites
title_short	Mechanical properties of calcium carbonate and coconut shell filled polypropylene composites
title_full	Mechanical properties of calcium carbonate and coconut shell filled polypropylene composites
title_fullStr	Mechanical properties of calcium carbonate and coconut shell filled polypropylene composites
title_full_unstemmed	Mechanical properties of calcium carbonate and coconut shell filled polypropylene composites
title_sort	mechanical properties of calcium carbonate and coconut shell filled polypropylene composites
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical Engineering
granting_department	Faculty of Chemical Engineering
publishDate	2012
url	http://eprints.utm.my/id/eprint/40648/1/MehdiHeidariMFKK2012.pdf
_version_	1747816567961288704

Mechanical properties of calcium carbonate and coconut shell filled polypropylene composites

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