Propiedades mecánicas de un sistema epoxi modificado con ABS

In this work, the effect of a thermoplastic modifier (ABS) on the mechanical properties of an epoxy resin (DGEBA) cured with a diamine (1,3-BAC) was studied. The experiments were carried out at three different temperatures. The effect of the temperature on the mechanical behaviour has been investiga...

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Bibliographic Details
Main Authors: Barral, L., Cano, J., López, J., Nogueira, P., Abad, M. J., Torres, A., Ramírez, C.
Format: Article
Language:English
Published: Elsevier 2000-08-01
Series:Boletín de la Sociedad Española de Cerámica y Vidrio
Subjects:
ABS
Online Access:http://ceramicayvidrio.revistas.csic.es/index.php/ceramicayvidrio/article/view/792/820
Description
Summary:In this work, the effect of a thermoplastic modifier (ABS) on the mechanical properties of an epoxy resin (DGEBA) cured with a diamine (1,3-BAC) was studied. The experiments were carried out at three different temperatures. The effect of the temperature on the mechanical behaviour has been investigated too. It was observed that the rise in temperature improved the ductility of the modified epoxy systems. The presence of ABS did not produce a clear enhancement in the toughening of the epoxy resin, this behaviour was explained as a function of the high crosslink density reached in the curing cycle.<br><br>En este trabajo se ha estudiado la variación en las propiedades mecánicas de un sistema epoxi al modificarlo con diferentes contenidos de termoplástico (ABS). Los ensayos mecánicos fueron realizados a tres temperaturas distintas para investigar la influencia de esta variable en el comportamiento mecánico de los sistemas. Se observó que el aumento de temperatura del ensayo producía un incremento en la ductilidad del sistema. Las propiedades mecánicas del sistema no parecen experimentar gran mejoría con el incremento de la cantidad de termoplástico en el material. El alto grado de entrecruzamiento alcanzado durante el ciclo de curado puede limitar el efecto del ABS en el comportamiento mecánico del sistema epoxi.
ISSN:0366-3175