Mechanical properties and failure modes of recycled polypropylene/microcrystalline cellulose composites

Zulkifli, Nur Izzati and Samat, Noorasikin and Anuar, Hazleen and Zainuddin, Norhazlin (2015) Mechanical properties and failure modes of recycled polypropylene/microcrystalline cellulose composites. Materials and Design, 69. pp. 114-123. ISSN 0261-3069

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Abstract

The effects of microcrystalline cellulose (MCC) fibre on the properties of recycled polypropylene (rPP)composites were investigated. A coupling agent, maleic anhydride grafted-polypropylene (MAPP) was used to improve the interfacial adhesion between the MCC fibres and rPP matrix. A series of rPP/MCC composites, with or without MAPP, were compounded with an extruder and then moulded with an injection moulding machine. It was found that without MAPP, an increase in MCC loadings caused degradation in the tensile strength of rPP composites. However, the impact strength was higher compared to that of neat rPP prior to its decrease caused by the increase in MCC loading. All mechanical properties showed improvement after MAPP was added, especially in tensile modulus. FESEM morphology also revealed better interfacial adhesion between the MCC fibres and the rPP matrix. Fracture analysis indicated that the ductile and quasi-brittle behaviours in both types of rPP/MCC composites (with or without MAPP) were affected by the concentration of fibres and the interfacial adhesion strength.

Item Type:	Article (Journal)
Additional Information:	4029/40932
Uncontrolled Keywords:	Recycled polypropylene Microcrystalline cellulose Maleic anhydride grafted polypropylene Mechanical properties
Subjects:	T Technology > T Technology (General) > T175 Industrial research. Research and development
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Noorasikin Samat
Date Deposited:	28 Jan 2015 09:29
Last Modified:	08 Nov 2016 17:19
URI:	http://irep.iium.edu.my/id/eprint/40932

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