Moisture uptake and tensile properties of starch-sugar cane fibre films
Gilfillan, William N., Sopade, Peter A., & Doherty, William O.S. (2012) Moisture uptake and tensile properties of starch-sugar cane fibre films. In Bruce, Robin C. (Ed.) Procedings of the 34th Australian Society of Sugar Cane Technologists, Australian Society of Sugar Cane Technologists (ASSCT), Cairnes, QLD, Australia.
THERE is an increasing need for biodegradable plastics because they are environmentally friendly and can replace petroleum-based non-degradable plastics which pollute the environment. Starch-derived films reinforced with sugar cane bagasse fibre, which are biodegradable, have been prepared and characterised by gravimetric analysis for moisture uptake, X-ray powder diffraction for crystallinity, and tensile testing for mechanical properties.
Results have shown that the addition of bagasse fibre (5 wt%,
10 wt% or 20 wt%) to either (modified) potato starch (Soluble starch) or hydroxypropylated maize starch reduced moisture uptake by up to 30% at 58% relative humidity (RH). Also, the tensile strength and the Young’s Modulus increased up to 63% and 80% respectively, with the maximum value obtained with
5 wt% fibre at 58% RH. However, the tensile strain of the films significantly decreased by up to 84%. The results have been explained based on the crystallinity of the films and the intrinsic properties of starch and bagasse fibres.
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|Item Type:||Conference Paper|
|Keywords:||bagasse, biodegradable polymer, fibre, film, starch|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Polymers and Plastics (091209)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering|
Current > Research Centres > Centre for Tropical Crops and Biocommodities
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2012 Australian Society of Sugar Cane Technologists (ASSCT)|
|Copyright Statement:||The definitive published version is available from the publisher: http://www.assct.com.au/|
|Deposited On:||07 Jun 2012 08:18|
|Last Modified:||25 Jan 2013 02:50|
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