NEW PERSPECTIVE ON STRUCTURAL PIECES FOR AUTOMOTION:TRIFUNCTIONAL EPOXY RESIN COMPOSITES WITH FILLER OFGLASS BEADS

摘要

Trifunctional epoxy resin used for industrial application has opened new fields in thefabrication of automotion pieces. The studied material is a composite made for trifunctionalepoxy resin diglycidyl ether of para-aminophenol (TGAP), supplied by VANTICO with theproduct name of Araldite MY510 and an amine hardener called 4,4’– diaminodiphenylsulfone(DDS), also supplied by VANTICO and with product name Aradur 9664-1. Glass beads madefrom calcium sodium silicate was used as a filler supplied by SORBITE as Micropearl? withdiameter of 24mm.The mechanical behaviour of this composite was studied (tensile and flexural test). Resultsshow that tensile resistance depends on the filler proportion in the matrix, good adhesionbetween filler and matrix and good dispersion of the filler in the matrix.SEM was used to show the good adhesion between filler and matrix and a moderatedispersion of glass beads. The proportion of this was not above 40% in weight of the matrix.A greater proportion than this would have perhaps caused the dispersion to be worse as theglass beads would have formed agglomerations between them and the adhesion would havealso been affected. For that reason, composites had different proportions of filler, between10% and 40%. It was not considered that a pre-treatment of the filler was necessary becauseboth resin and filler has a good adhesion, according with the studies about de samples realisedby SEM.The results show that mechanical properties increase according to filler proportion. Thecomposites with 40% of glass beads are considered to be useful structural composites forautomotive applications according to their tensile and flexural values.