INVESTIGADORES
MANFREDI liliana Beatriz
congresos y reuniones científicas
Título:
Synthesis and characterization of nanocomposites based on furan resins
Autor/es:
G. RIVERO; A. VÁZQUEZ; V. PETTARIN; L.B.MANFREDI
Lugar:
San Sebastián, España
Reunión:
Conferencia; V International Conference on Science and Technology of Composite Materials - 8° Congreso Nacional de Materiales Compuestos (COMATCOMP 2009); 2009
Institución organizadora:
Universidad del País Vasco
Resumen:
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Furan resins obtained from furfural and phenol were
synthesized to obtain a resin to be used as metal coating or matrix of
composite materials. These resins should have similar properties to the
phenolic resins because they are obtained by replacing formaldehyde by
furfural. So, it should be possible to obtain a material with an excellent
thermical and oxidative resistance but reducing the formaldehyde emissions.
Moreover, the addition of nanoparticles to the furan resin should enhance their
performance. The synthesis and characterization of a furan resin was made in
this work. Nanocomposites were obtained by the in-situ addition of different
type of clays to the resin. The prepolymer formation reactions were studied by
infrared spectroscopy (FTIR) and the variation of viscosity with the time was
measured. It was observed that the addition of clay to the resin accelerates
the prepolymer formation. It was then cured using hexamethylenetetramine as
catalyst and their chemical structure was also studied by FTIR. It was
concluded that the type of clay has an important influence on the final
structure of the resin. It could be due to the compatibility among the
surfactants of the clay with the resin. The curing kinetics of the furan resin
and their composites was characterized by differential scanning calorimetry
applying free kinetic models.