Dynamic mechanical and water absorption properties of microcrystalline cellulose reinforced polypropylene composites: the effect of unconventional irradiation route

Samat, Noorasikin and Mohd Lazim, Nurul Hakimah and Halim, Zahurin (2019) Dynamic mechanical and water absorption properties of microcrystalline cellulose reinforced polypropylene composites: the effect of unconventional irradiation route. IIUM Engineering Journal, 20 (2). pp. 188-196. ISSN 1511-788X E-ISSN 2289-7860

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Abstract

The unconventional electron beam (EB) irradiation route in preparing microcrystalline cellulose (MCC) fiber reinforced recycled polypropylene (rPP) composites was studied. In this route, the rPP was first subjected to EB irradiation at various doses (10-50kGy) and was then used as a compatibilizer. Unirradiated and irradiated rPPs were blended at two different ratios (90:10; 50:50) and added with MCC at contents of 5, 20 and 40wt%. Dynamic mechanical analysis (DMA) and water absorption tests were carried out. The DMA spectra exhibited high stiffness and damping behaviour. As the content of MCC increased, the water resistance of composites dropped slightly as compared to the controlled rPP. However, some compositions (50:50/40MCC-10kGy and 50:50/5MCC-50kGy) had shown opposite results. The improvement in the studied properties proved the existence of the compatibility effect that occurred at low irradiation doses, and also depended on the ratio (unirradiated and irradiated rPP) and MCC contents.

Item Type:	Article (Journal)
Additional Information:	4029/77176
Uncontrolled Keywords:	polypropylene, cellulose, compatibilizer, electron beam irradiation 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:	08 Jan 2020 16:43
Last Modified:	20 Jan 2020 11:49
URI:	http://irep.iium.edu.my/id/eprint/77176

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