Moisture uptake and tensile properties of starch-sugar cane fibre films


Autoria(s): Gilfillan, William N.; Sopade, Peter A.; Doherty, William O.S.
Contribuinte(s)

Bruce, Robin C.

Data(s)

2013

Resumo

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.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/50778/

Publicador

Informa Agra

Relação

http://eprints.qut.edu.au/50778/13/50778.pdf

http://www.agra-net.com/portal2/isj/home.jsp?template=showlockedpdf&pdfid=20001798886&pubid=ag043

Gilfillan, William N., Sopade, Peter A., & Doherty, William O.S. (2013) Moisture uptake and tensile properties of starch-sugar cane fibre films. International Sugar Journal, 115(1369), pp. 23-27.

Direitos

Informa Agra

Fonte

School of Chemistry, Physics & Mechanical Engineering; Centre for Tropical Crops and Biocommodities; Science & Engineering Faculty

Palavras-Chave #091209 Polymers and Plastics #bagasse #biodegradable polymer #fibre #film #starch
Tipo

Journal Article