The Accelerated Curing of Epoxy Resins Using Microwave Radiation

David Lewis, J C Hendrick, J E McGrath, T C Ward

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

Microwave radiation has been shown to significantly accelerate the curing of epoxy resins. The degree of acceleration in the rate of cure will depend on both power and the sample size utilized. Initially determined mechanical properties of the microwave cured resin were similar to those for the thermal cured system.

Curing of thermoset resins by microwave radiation has a number of potential advantages over the more conventional, thermal processing. The principal commercial advantages are (1) reduction in the time required for complete cure; (2) reduction in the capital cost of equipment and (3) reduced operating costs. There may also be the possibility of producing materials with low residual stress and for applications in the field repair of polymers and composites.

Despite the tremendous potential advantaqes of polymer processing using microwave radiation, there remains no systematic and comprehensive examination of the chemistry of the cure or the mechanical properties of systems cured in controlled high frequency radiation fields.

The accelerated curing of epoxy resins using microwave radiation can be demonstrated from comparison of the con­version-time profile with isothermally cured epoxy resins. Some of the mechanical properties of the cured material have been characterized by flexural modulus and fracture toughness maeasurements and will be directly compared with isothermally cured systems. Some studies in selected areas have begun to appear, primarily in France.

Original languageEnglish
Pages (from-to)330-331
Number of pages2
JournalPolymer Preprints
Volume28
Issue number2
Publication statusPublished - 1987
Externally publishedYes

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