Mechanical Behavior of Natural Composites Subjected to Condensation Process


Mechanical Behavior of Natural Composites Subjected to Condensation Process

A.C. Bolaños, M.L. Sánchez, J.D. Caicedo

Abstract. The use of composite materials made with natural materials has increased in several areas of engineering, mainly in the elaboration of structural elements, in which the material can be subjected to the action of atmospheric agents for long periods, can generate changes in the microstructure of the material and consequently affect its mechanical behavior. Among environmental phenomena that can cause a rapid degradation of natural composite, the exposure of the material to humidity conditions is emphasized. This work presents the determination of the physical properties of composites made with fibers and vegetal resin after being exposed to cycles of wetting under conditions of variable temperature. For the experimental tests, composite panels with Guadua and Arundo Dónax fibers immersed in a vegetal-based polyurethane were elaborated. For the modification of the surface of the fibers, an alkaline treatment was established. The degradation of the material was obtained using an accelerated weathering tester. To simulate the effect of moisture a condensation process was employed. The results were compared with experimental results obtained for panels that have not undergone degradation process.

Natural Composites, Moisture Content, Mechanical Properties, Condensation Process

Published online , 10 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: A.C. Bolaños, M.L. Sánchez, J.D. Caicedo, ‘Mechanical Behavior of Natural Composites Subjected to Condensation Process’, Materials Research Proceedings, Vol. 7, pp 582-591, 2018


The article was published as article 56 of the book Non-Conventional Materials and Technologies

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