Innovative natural fiber honeycom cores for sandwich structures based on vinylester resin reinforced with jute fabrics

ARIEL STOCCHI; EXEQUIEL RODRIGUEZ,; CELINA BERNAL,; ANALIA VAZQUEZ

San Sebastián, España

Conferencia; V International Conference on Science and Technology of Composite Materials 09, COMATCOMP2009; 2009

COMAT- Asociación de Materiales Compuestos de España

The main goal of this work is to understand how the main processing variables are affected when glass fibers are replaced by natural fibers in reinforced plastics.  A jute fabric was characterized in terms of its saturated and unsaturated permeability. It was found that fluid absorption and swelling are mechanisms present in natural fibers that reduce both permeabilities. Fluid absorption removes fluid from the main stream as it travels through the reinforcement, acting as a sink component and thus decreasing flow velocity during the unsaturated flow. Also, the saturation of the natural fibers cause swelling, reducing the porosity and increasing flow resistance during saturated flow.