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Water Absorption Associated with Gamma Irradiation on Kevlar/Oil Palm EFB Hybrid Composites
S.M.M.Amir1, M.T.H.Sultan2, M.Jawaid3, A.U.M.Shah4, A.Hamdan5, S.Mohd6, K.A.M.Salleh7

1Siti Madiha Muhammad Amir, Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor Darul Ehsan, Malaysia.
2Ir. Ts. Dr. Mohamed Thariq Hameed Sultan, Associate Professor, Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor Darul Ehsan, Malaysia.
3Dr. Mohammad Jawaid Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM Serdang, Selangor Darul Ehsan, Malaysia.
4Dr. Ain Umaira Md Shah, Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor Darul Ehsan, Malaysia.
5Dr. Ahmad Hamdan Ariffin, Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor Darul Ehsan, Malaysia.
6Dr. Shukri MohdIndustrial Technology Division, Malaysian Nuclear Agency, Bangi, Selangor, Malaysia.
7Dr. Khairul Anuar Mohd SallehIndustrial Technology Division, Malaysian Nuclear Agency, Bangi, Selangor, Malaysia.
Manuscript received on 28 May 2019 | Revised Manuscript received on 15 June 2019 | Manuscript Published on 26 June 2019 | PP: 444-447 | Volume-8 Issue-1S5 June 2019 | Retrieval Number: A00770681S519/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The objective of this work is to analyse the water absorption behaviour on the gamma irradiated Kevlar/Oil Palm EFB hybrid composites. The hybrid composites were fabricated through manual hand lay-up method. Different layering sequence of hybrid composites were fabricated which is Oil Palm EFB/Kevlar/ Oil Palm EFB (OP/K/OP) and Kevlar/Oil Palm EFB/Kevlar (K/OP/K). Various Gamma radiation doses; 25 kGy, 50 kGy and 150 kGy were exposed to the composites. The results showed that for both layering pattern, the water absorption for non-irradiated hybrid composites absorbed more water than irradiated hybrid composites. Water uptake for non-irradiated K/OP/K is 51% and with radiation is 21% at 50 kGy. Hybrid OP/K/OP that is not irradiated absorbed less water which is 27% as compared to the same hybrid but with radiation only 17%of water being absorbed at 50 kGy. The results showed that irradiated hybrid composites absorb less water compared to non-irradiated hybrid composites. This suggest that crosslinking took place due to the radiation. This implies that with radiation of certain dose could improves the properties of water absorption for Kevlar/ Oil Palm EFB hybrid composites.
Keywords: Gamma Irradiation, Hybrid Composites, Water Absorption.
Scope of the Article: Composite Materials