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Cure of Thermosetting Resins

Modelling and Experiments

  • J.-W. Vergnaud
  • J. Bouzon

Table of contents

  1. Front Matter
    Pages i-xx
  2. J.-W. Vergnaud, J. Bouzon
    Pages 1-17
  3. J.-W. Vergnaud, J. Bouzon
    Pages 29-57
  4. J.-W. Vergnaud, J. Bouzon
    Pages 59-72
  5. J.-W. Vergnaud, J. Bouzon
    Pages 73-87
  6. J.-W. Vergnaud, J. Bouzon
    Pages 89-93
  7. J.-W. Vergnaud, J. Bouzon
    Pages 113-146
  8. J.-W. Vergnaud, J. Bouzon
    Pages 147-154
  9. J.-W. Vergnaud, J. Bouzon
    Pages 167-182
  10. J.-W. Vergnaud, J. Bouzon
    Pages 183-211
  11. J.-W. Vergnaud, J. Bouzon
    Pages 213-268
  12. J.-W. Vergnaud, J. Bouzon
    Pages 277-306
  13. J.-W. Vergnaud, J. Bouzon
    Pages 349-366
  14. Back Matter
    Pages 375-382

About this book

Introduction

The process of cure of thermosets is rather complex, and good knowledge of the various steps and different problems is necessary for the user. For instance, the following basic facts characterise the cure of thermosets: 1. In the same way as rubbers, thermosets are generally polymerised and processed in a simple operation which involves the irreversible transformation of a low molecular weight resin in viscous liquid state into a solid network polymer. The process of cure is thus much more important for thermosets or rubbers than for thermo­ plastics, because if something goes wrong during the cure process of thermosets, the final products may have undersirable properties and will be of no use or value, while the thermoplastic material can be melted again to make a new material. 2. In contrast with rubbers, a high exothermic cure reaction is the aspect of fundamental importance in the cure process for thermo­ sets. This high enthalpy of cure associated with a rather low thermal conductivity can give rise to an excessively high tem­ perature which may cause discoloration and degradation of the material, and also to substantial temperature gradients. The mat­ erial is thus heterogeneous during the process of cure, and these temperature-time histories in the resin may have some effects on the properties of the final material. 3. Moreover, the increase in production following the reduction in time of the cure cycle necessitates the use of a higher mould temperature.

Keywords

Heating and cure Modelling of the process Thermosetting polymer chemical engineering polymer rubber

Authors and affiliations

  • J.-W. Vergnaud
    • 1
  • J. Bouzon
    • 1
  1. 1.Laboratoire de Chimie des Matériaux et Chimie Industrielle, Faculté des Sciences et TechniquesUniversité de Saint-EtienneSaint-Etienne Cédex 2France

Bibliographic information