INVESTIGADORES
RODRIGUEZ exequiel Santos
congresos y reuniones científicas
Título:
Obtention of high temperature resistant prepregs
Autor/es:
LUCÍA ASARO; GUADALUPE RIVERO; LILIANA B. MANFREDI; EXEQUIEL S. RODRIGUEZ; VERA A. ALVAREZ
Lugar:
Bahía Blanca
Reunión:
Simposio; IX Simposio Argentino de Polímeros; 2011
Institución organizadora:
Universidad Nacional del Sur
Resumen:
The processing techniques used to obtain composite materials can be
divided into two categories. In the first one, fibers and matrix are processed
directly into the finished product or structure, for example in filament
winding and pultrusion processes. In the second one, fibers are incorporated
into the matrix to prepare ready-to-mold sheets that can be stored and later
processed to form laminated structures by autoclave holding or compression
molding. Ready-to-mold fiber-reinforced polymer sheets are available in two
basic forms, prepregs and sheet-molding compounds (P K Mallick 2008).
Two main criteria that influence the selection of prepregs for a
particular application are the performance and cost. They are largely used in
aerospace, energy obtaining, marine, sports and leisure.
The most widely used process to obtain prepregs is the
vacuum molding, where the fibers and resin are compacted due to the action of
atmospheric pressure, and the air bubbles are eliminated.
On the other hand, phenolic resins were the first thermosetting
resins to be synthesized in 1907. This type of resin has been studied yet again
due to its fire resistance property (Manfredi, et al. 1999).
The aim of this work was to obtain and to characterize carbon fiber-phenolic
resin prepregs. Nanoclays
were added to phenolic resin in order to evaluate their effect on the
performance of the material.