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International Journal of Polymer Analysis and Characterization Volume 19, 2014 - Issue 4
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Original Articles

Monomer and Radiation-Mediated Sago Starch Blend Film: Mechanical and Thermal Property Optimization

Kamol Dey Department of Applied and Environmental Chemistry, Faculty of Science, University of Chittagong, Chittagong, BangladeshCorrespondence[email protected]
,
Yasir Arafat Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka, Bangladesh
,
Pinku Poddar Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka, Bangladesh
&
Mubarak A. Khan Nuclear and Radiation Chemistry Division, Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
Pages 352-362 | Received 04 Feb 2014, Accepted 20 Feb 2014, Published online: 16 May 2014
 
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Abstract

Bio-blend films were prepared with sago starch and N-vinyl-2-pyrrolidone (NVP) by the casting method, varying the concentrations of sago starch (100 to 93%) and NVP (0 to 7%). The formulations were designated as F1 (starch 100%), F2 (starch 97%), F3 (starch 95%), and F4 (starch 97%). The highest tensile strength (TS), tensile modulus (TM), and elongation at break (Eb%) were found correspondingly to be 30.47 MPa, 407.74 MPa, and 8.25% for the F3 formulation. Gamma radiation was applied to films to modify their performance through grafting and cross-linking. The highest TS, TM, and Eb% were found at 500 krad dose and they were 38.12 MPa, 481.00 MPa, and 9.78%, respectively for F3 formulation. The water uptake nature and thermal properties of the treated and untreated films were also investigated.

Notes

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