STUDY ON MICROWAVE DIELECTRIC PROPERTIES OF EPOXYRESIN MIXTURES USED FOR RAPID PRODUCT DEVELOPMENT
来源期刊：Acta Metallurgica Sinica2001年第1期
论文作者：Yarlagadda P.K.D.V
Key words：microwave; curing time; epoxy resin; rapid product development;
Abstract: This paper presents a preliminary study on the dielectric properties and curing of threedifferent types of epoxy resins mixed at various stoichiometric mixture of hardener,flydust and aluminium powder under microwave energy. In this work, the curing pro-cess of thin layers of epoxy resins using microwave radiation was investigated as analternative technique that can be implemented to develop a new rapid product devel-opment technique. In this study it was observed that the curing time and temperaturewere a function of the percentage of hardener and fillers presence in the epoxy resins.Initially dielectric properties of epoxy resins with hardener were measured which wasdirectly correlated to the curing process in order to understand the properties of curedspecimen. Tensile tests were conducted on the three different types of epoxy resinswith hardener and fillers. Modifying dielectric properties of the mixtures a significantdecrease in curing time was observed. In order to study the microstructural changesof cured specimen the morphology of the fracture surface was carried out by usingscanning electron microscopy.``
Yarlagadda1，P.K.D.V1
(1.School of Mechanical, Manufacturing and Medical Engineering Queensland University of Technology (QUT)2, George Street, Brisbane, Qld 4001, Australia)
Abstract:This paper presents a preliminary study on the dielectric properties and curing of threedifferent types of epoxy resins mixed at various stoichiometric mixture of hardener,flydust and aluminium powder under microwave energy. In this work, the curing pro-cess of thin layers of epoxy resins using microwave radiation was investigated as analternative technique that can be implemented to develop a new rapid product devel-opment technique. In this study it was observed that the curing time and temperaturewere a function of the percentage of hardener and fillers presence in the epoxy resins.Initially dielectric properties of epoxy resins with hardener were measured which wasdirectly correlated to the curing process in order to understand the properties of curedspecimen. Tensile tests were conducted on the three different types of epoxy resinswith hardener and fillers. Modifying dielectric properties of the mixtures a significantdecrease in curing time was observed. In order to study the microstructural changesof cured specimen the morphology of the fracture surface was carried out by usingscanning electron microscopy.``
Key words:microwave; curing time; epoxy resin; rapid product development;
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