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New Natural Injection-Moldable Composite Material from Sunflower Oil Cake

Rouilly, Antoine and Orliac, Olivier and Silvestre, Françoise and Rigal, Luc New Natural Injection-Moldable Composite Material from Sunflower Oil Cake. (2006) Bioresource Technology , Vol. 9 (N° 4). pp. 553-561. ISSN 0960-8524

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Official URL: http://dx.doi.org/10.1016/j.biortech.2005.04.022

Abstract

Through a twin-screw extrusion process the native structure of sunflower oil cake was completely transformed (globular protein denaturation/texturization and husk fiber defibration) into a simpler matrix-fiber structure, as could be seen on SEM micrographs. Further chemical reduction of protein disulfide bridges greatly reduced the melt viscosity of the moistened composite that it could be injection-molded. The molded specimens were tested and their tensile and flexural properties and water absorption calculated. Their water resistance appeared to be particularly high, and could be enhanced further after a thermal treatment (N2, 200°C). The proteic matrix seemed to behave like a natural thermoset resin. Sunflower oil cake could be used without any additives to make biodegradable, water resistant and exceptionally cheap materials

Item Type:Article
Additional Information:http://www.elsevier.com/wps/find/journaldescription.cws_home/405854/description#description
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Institut National de la Recherche Agronomique - INRA
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Laboratory name:
Laboratoire de Chimie Agro-Industrielle - LCA (Toulouse, France) - Fractionnement et transformation des agroressources
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Deposited By: Isabelle ALRIC

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