Table of Contents
ISRN Polymer Science
Volume 2013, Article ID 593862, 10 pages
http://dx.doi.org/10.1155/2013/593862
Research Article

Effect of Sugar, Urea, and Molasses and the Influence of Radiation on the Plasticization of Acacia catechu Extract Incorporated Starch/Poly-(Vinyl Alcohol) Based Film

1Department of Environmental Science, Independent University Bangladesh, Bashundhara, Dhaka, Bangladesh
2BRAC International Program, BRAC, Dhaka, Bangladesh

Received 8 April 2013; Accepted 13 May 2013

Academic Editors: Y. Chen, S. Fakirov, and J. I. Velasco

Copyright © 2013 Marufa Naznin and Md. Zainul Abedin. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Acacia catechu extract was incorporated in the starch/PVA (60% : 40%) based films (0% to 15%) to the total weight of starch/PVA based film. The tensile strength (TS) of the starch/PVA blend film was 24 MPa whereas the acacia incorporated film shows the highest tensile strength (TS) of 33.8 MPa at 0.5%. Again, 0.5% acacia based film was treated with 10% urea, sugar, and molasses separately both at nonirradiated and irradiated conditions. At the nonirradiated condition molasses incorporated film gives the best results (TS 16 MPa, EB 59%), while sugar incorporated film shows a value of 10 MPa TS and EB of 123% at 200 krad. The films were investigated by FTIR. Thermal studies were carried out by TG/DTA. Water absorption experiment showed a different uptake of water by the different films. Soil degradation test revealed that after 70 days molasses incorporated film (both irradiated and nonirradiated) degrades to 100% into the soil.