INVESTIGADORES
FRANCUCCI Gaston Martin
congresos y reuniones científicas
Título:
Recent Research on Natural Fiber Composites. Vacuum Infusion Technique, Honeycomb, Dielectric Measurements.
Autor/es:
ANALÍA VAZQUEZ; CELINA BERNAL; GASTON FRANCUCCI; ARIEL STOCCHI; ALICIA FRAGA; JULIO DOUMEQ; EXEQUIEL RODRIGUEZ
Lugar:
San Sebastián
Reunión:
Conferencia; International Conference on Science and Technology of Composite Materials (COMAT); 2009
Institución organizadora:
AEMAC (Asociación Española de Materiales Compuestos)
Resumen:
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On the World Years of
Natural Fibers declared by FAO, their utilization in order to obtain
added valuable material is a key factor. Our group is working in the
subject since 1994, and recent results on: i) fiber treatment, ii)
vacuum infusion technique, iii) dielectric measurements, will be
discussed.
A fiber treatment
consisting on an alkali treatment superimposed to biaxial tensile
stress for woven jute fabric/vinylester laminates was done. The
influence of the treatment time on the composites' mechanical
properties was also studied.
Resin transfer moulding
technique is a processing which permit to obtain a composite material
with less content of voids. However their use with natural fibers has
some particular characteristics which were analyzed. Untreated and
alkali-treated jute fibers were used and the treatment effect on the
mechanical properties of the fiber and composites, as well as on the
processing condition was studied.
In order to correlated the
dielectric properties to water absorption in natural fiber
composites, gravimetric and dielectric measurements were used to
monitor distillate water and artificial seawater uptake in vinylester
matrix and natural fiber composites.