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Effect of γ (gamma)-radiation on mechanical properties of raw and polyethylene glycol-modified bleached jute reinforced polyester composite

Md. Asadul Hoque (Department of Materials Science and Engineering, University of Rajshahi, Rajshahi, Bangladesh)
Md. Anwarul Kabir Bhuiya (Department of Materials Science and Engineering, University of Rajshahi, Rajshahi, Bangladesh)
Md. Saiduzzaman (Department of Materials Science and Engineering, University of Rajshahi, Rajshahi, Bangladesh)
Md. Ashadul Islam (Department of Materials Science and Engineering, University of Rajshahi, Rajshahi, Bangladesh)
Mubarak A. Khan (Institute of Radiation and Polymer Technology, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh)

World Journal of Engineering

ISSN: 1708-5284

Article publication date: 10 April 2017

159

Abstract

Purpose

This paper aim to comparatively study of mechanical properties of gamma radiation treated raw and polyethylene glycol modified bleached jute reinforced polyester composite. The natural fiber-reinforced composite has been a wide area of research, and it is the preferred choice due to its superior physical and mechanical properties like low density, stiffness and light weight. Among several natural fibers, jute is one that has good potential as reinforcement in polymer composite. Jute fibers biodegradability, low cost and moderate mechanical properties make it as a preferable reinforcement material in the development of polymer matrix composites.

Design/methodology/approach

In the present work, raw jute fabrics-reinforced polyester composite (as RJPC) and polyethylene glycol (PEG)-modified bleached jute fabrics-reinforced polyester composite (as MBJPC) were fabricated by the heat-press molding technique at 120°C for 5 min at a pressure of 5 tons. Prior to the composite formulation, low lignin content bleached jute fabrics were chemically modified with PEG for the better compatibility of the fabrics with the polyester matrix and enhancing elongation properties. All the composites irradiated with different gamma radiation dose in the range of 2 to 14 kGy.

Findings

The irradiated composites showed highest improved of mechanical properties at the 10 kGy γ-radiation dose. However, the hard and sunlight-sensitive high lignin content γ-RJPC showed higher mechanical properties except elongation properties compared to that of low lignin content γ-MBJPC.

Originality/value

After the γ-ray irradiation, both the γ-RJPC and γ-MBJPC developed high degree of cross-linking among the polyester molecules and thereto fabrics with the consequence of significant changed of surface morphology as observed by atomic force microscopy.

Keywords

Acknowledgements

The authors are very much grateful to National Science & Technology (NST), Bangladesh, for their financial support and also grateful to the Atomic Energy Commission (AEC), Bangladesh, for giving its support in its laboratory facilities.

Citation

Hoque, M.A., Bhuiya, M.A.K., Saiduzzaman, M., Islam, M.A. and Khan, M.A. (2017), "Effect of γ (gamma)-radiation on mechanical properties of raw and polyethylene glycol-modified bleached jute reinforced polyester composite", World Journal of Engineering, Vol. 14 No. 2, pp. 108-113. https://doi.org/10.1108/WJE-06-2016-0005

Publisher

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Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited

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