Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-19T04:18:19.884Z Has data issue: false hasContentIssue false
  • English
  • Français

Control of Microwave Process for Polymer Curing by Dielectric Property Measurements in a Broad Frequency Range, 1 MHz-10 GHz

Published online by Cambridge University Press:  10 February 2011

O. Meyer ,
N. Belhadj-Tahar  and
A. Fourrier-Lamer
O. Meyer
Affiliation:
Laboratoire de Dispositifs Infrarouge et Micro-ondes, Universitd Pierre et Marie Curie Case 92 T12 E2, 4 place Jussieu 75252 PARIS Cedex 05 FRANCE., 33-1-44 27 43 72, 33-1 44 27 43 82
N. Belhadj-Tahar
Affiliation:
Laboratoire de Dispositifs Infrarouge et Micro-ondes, Universitd Pierre et Marie Curie Case 92 T12 E2, 4 place Jussieu 75252 PARIS Cedex 05 FRANCE., 33-1-44 27 43 72, 33-1 44 27 43 82
A. Fourrier-Lamer
Affiliation:
Laboratoire de Dispositifs Infrarouge et Micro-ondes, Universitd Pierre et Marie Curie Case 92 T12 E2, 4 place Jussieu 75252 PARIS Cedex 05 FRANCE., 33-1-44 27 43 72, 33-1 44 27 43 82
Get access

Abstract

Let us present a new automatic system which couples a high power circuit (2.45 GHz) for heating with a low power one, for broad frequency band measurements of dielectric permittivity (1 MHz-10 GHz). The sample under microwave curing consists in an epoxy resin + hardener complex (DGEBA+DDS). The broad band spectra shows the existence of a dielectric relaxation. This absorption is used as a marker to describe the evolution of the reaction in relation with time and temperature, in terms of conversion ratio, kinetic velocity and quality. The phenomenum of microwave activation and interactions between permanent molecular dipoles and electromagnetic waves form the subject of this study. We also try to establish the specificity of microwave curing from a microscopic point of view. This work emphasizes new concepts which concern microwave chemistry.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 430: Symposium O – Microwave Processing of Materials V , 1996 , 587
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Deng, Y., Martin, C., Journal of Polymer Science: Part B,.32, 2115–2125, (1994).Google Scholar
2. Mangion, M.B.M., Johari, G.P., J. of Polym. Science: Part B,.29, p. 1127–1135, (1991).Google Scholar
3. Delmotte, M., Jullien, H., Ollivon, M., Eur. Polym. J. 27, No 4/5, p. 371–376 (1991).Google Scholar
4. Marand, E., Baker,., K.R. Macromolecules, 25, p. 2243–2252, (1992).Google Scholar
5. Meyer, O., Belhadj-Tahar, N., Fourrier-Lamer, A., (European Workshop on Microwave Processing of Materials, Karlsruhe 1994).Google Scholar
6. Belhadj-Tahar, N., Fourrier-Lamer, A., IEEE Trans. Microwave Theory Tech. MTT-34, No 3, p. 346–349 (1986).Google Scholar
7. Kolodziej, H., Sobscyk, L., Acta Phys. Pol., A39, p. 59 (1971).Google Scholar
8. Badot, J.C., Phd.Thesis from the Universit6 Pierre et Marie Curie - Paris 6 (1988).Google Scholar