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Mechanical Behavior of Microwave Processed Polymer Matrix Composites: the Effect Of The Temperature Increase Rate

Published online by Cambridge University Press:  10 February 2011

M. Delmotte ,
J. Fitoussi ,
J. Toftegaard-Hansen ,
C. More ,
H. Jullien  and
D. Baptiste
M. Delmotte
Affiliation:
Laboratoire Microstructure et Mécanique des Matériaux, CNRS URA 1219, ENSAM, 151 blvd. de l'Hôpital, 75013 Paris, France.
J. Fitoussi
Affiliation:
Laboratoire Microstructure et Mécanique des Matériaux, CNRS URA 1219, ENSAM, 151 blvd. de l'Hôpital, 75013 Paris, France.
J. Toftegaard-Hansen
Affiliation:
Laboratoire Microstructure et Mécanique des Matériaux, CNRS URA 1219, ENSAM, 151 blvd. de l'Hôpital, 75013 Paris, France.
C. More
Affiliation:
Laboratoire Microstructure et Mécanique des Matériaux, CNRS URA 1219, ENSAM, 151 blvd. de l'Hôpital, 75013 Paris, France.
H. Jullien
Affiliation:
Laboratoire Microstructure et Mécanique des Matériaux, CNRS URA 1219, ENSAM, 151 blvd. de l'Hôpital, 75013 Paris, France.
D. Baptiste
Affiliation:
Laboratoire Microstructure et Mécanique des Matériaux, CNRS URA 1219, ENSAM, 151 blvd. de l'Hôpital, 75013 Paris, France.
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Abstract

Microwave processed glass reinforced epoxies or glass reinforced polyesters exhibit mechanical behaviors different from conventionally cured materials, relatively to tensile tests. The faster increases of temperature due to microwaves cause a competition between the matrix flow and the crosslinking reaction which can be estimated by porosity variations. Higher mechanical moduih are also obtained, because of both an effect on chemical kinetics and a more homogenous distribution of temperature in materials. Nevertheless, to provide such specific mechanical behaviors in microwave processed composite materials, a best control of the experimental pressure parameters is requested.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 430: Symposium O – Microwave Processing of Materials V , 1996 , 607
Copyright
Copyright © Materials Research Society 1996

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