On the dielectric performance of modified epoxy networks

Saeedi, Istebreq, Vaughan, Alun and Andritsch, Thomas (2016) On the dielectric performance of modified epoxy networks. International Conference on Dielectrics (ICD), Montpellier, France. 03 - 07 Jul 2016. 4 pp . (doi:10.1109/ICD.2016.7547797).

Record type: Conference or Workshop Item (Paper)

Abstract

Epoxy resins represent a commonly used basis for insulation materials and have been used in many different electrical applications. The formation of these systems involves reactions between a hardener, such as an amine-curing system, and an epoxy terminated resin. Recent studies have reported that epoxy resin systems can exhibit enhanced physical properties when the stoichiometry of the resin is varied using reactive diluent. This has been attributed to the increased free volume within the molecular structures within the epoxy resin network. The work described here set out to investigate this hypothesis concerning the potential benefits of varying the network structure of epoxy resin through the inclusion of monofunctional reactive diluents within the epoxy formulation. This research is of potential significance because any modification of the epoxy resin network results in modified thermal, mechanical and electrical properties and, consequently, represents a potential mean of tailoring overall performance to suit particular applications.

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