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Materials 2013, 6(6), 2240-2261;

High Pressure Compression-Molding of α-Cellulose and Effects of Operating Conditions

Université de Toulouse, INP-ENSIACET, LCA (Laboratoire de Chimie Agro industrielle), Toulouse F 31030, France
INRA, UMR 1010 CAI, Toulouse F 31030, France
The Green Factory, 27 rue Chanez, Paris 75016, France
Author to whom correspondence should be addressed.
Received: 22 January 2013 / Revised: 12 March 2013 / Accepted: 21 May 2013 / Published: 30 May 2013
(This article belongs to the Special Issue Advances in Cellulosic Materials)
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Commercial α-cellulose was compression-molded to produce 1A dog-bone specimens under various operating conditions without any additive. The resulting agromaterials exhibited a smooth, plastic-like surface, and constituted a suitable target as replacement for plastic materials. Tensile and three-points bending tests were conducted according to ISO standards related to the evaluation of plastic materials. The specimens had strengths comparable to classical petroleum-based thermoplastics. They also exhibited high moduli, which is characteristic of brittle materials. A higher temperature and higher pressure rate produced specimens with higher mechanical properties while low moisture content produced weaker specimens. Generally, the strong specimen had higher specific gravity and lower moisture content. However, some parameters did not follow the general trend e.g., thinner specimen showed much higher Young’s Modulus, although their specific gravity and moisture content remained similar to control, revealing a marked skin-effect which was confirmed by SEM observations. View Full-Text
Keywords: α-cellulose; compression-molding; agromaterials; biomaterials; mechanical properties α-cellulose; compression-molding; agromaterials; biomaterials; mechanical properties

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Pintiaux, T.; Viet, D.; Vandenbossche, V.; Rigal, L.; Rouilly, A. High Pressure Compression-Molding of α-Cellulose and Effects of Operating Conditions. Materials 2013, 6, 2240-2261.

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