INVESTIGADORES
ALVAREZ Vera Alejandra
capítulos de libros
Título:
Evaluation of Methods for Stiffness Predictions of Polymer Based Nanocomposites: Theoretical Background and Examples of Applications (PCL-clay nanocomposites).
Autor/es:
LEANDRO LUDUEÑA; ANALÍA VÁZQUEZ; VERA ALVAREZ
Libro:
Nanomaterials: Properties, Preparation and Processes
Editorial:
Nova Publisher
Referencias:
Lugar: New York; Año: 2010; p. 341 - 365
Resumen:
In the present work, the modelling of the mechanical properties of polycaprolactone-layered silicates nanocomposites was investigated. Nanocomposites prepared with two different clays (modified and
unmodified montmorillonite) and several filler contents were used in order to correlate experimental Young´s modulus values from uniaxial tensile tests with several different models. Since the Young´s
modulus values of the nanocomposites are strongly dependent on their components properties (matrix,filler and their interface), the filler aspect ratio, the dispersion degree, the orientation and the
exfoliation/intercalation relationship; models that include each one of these parameters related with nanocomposites were used. Parameters belonging to traditional models (Halpin-Tsai) were also analyzed
but not good agreement with experimental values was obtained. Best correlation was achieved considering a three-phase model which includes the matrix, the exfoliated clay platelets and the intercalated region.