The effect of geraphene on the thermal and dielectric properties of epoxy resin

Hesham S. Karaman, Hanaa M. Ahmed, M.M.F. Darwish, Diaa-Eldin A. Mansour*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

3 Citations (Scopus)


Polymer dielectrics are the most popular materials that have been used in energy storage applications. This returns to its high dielectric strength as well as energy storage capabilities. Recently, polymer composites have been developed for this purpose. One of the promising fillers that can be added for this application is graphene particles due to its high energy storage capacity. Thus, this study aims to increase the energy storage capacity of epoxy resin by incorporating different loading of graphene particles. The prepared samples of graphene-epoxy composites were fabricated with 0.1%, 0.2%, and 0.3% weight percentages of graphene content. Thermal Gravimetric Analysis (TGA) was used to study the thermal stability of the prepared samples of graphene-epoxy composites. On the other hand, the relative permittivity and the dissipation factor for each prepared sample were evaluated by measuring its resistance and capacitance using LCR meter with equivalent parallel model. The obtained measurements indicated that the thermal stability and the dielectric properties of the selected epoxy resin were successfully improved by incorporating of graphene particles within the polymer chains of the epoxy resin. The best filler loading of graphene-epoxy composites was identified considering the thermal stability and the dielectric properties.

Original languageEnglish
Title of host publicationProceedings of 2020 International Symposium on Electrical Insulating Materials, ISEIM 2020
Number of pages4
ISBN (Electronic)9784886864185
Publication statusPublished - 13 Sep 2020
MoE publication typeA4 Article in a conference publication
EventInternational Symposium on Electrical Insulating Materials - Virtual
Duration: 13 Sep 202017 Sep 2020


ConferenceInternational Symposium on Electrical Insulating Materials
Abbreviated titleISEIM


  • Dielectric properties
  • Energy storage capacity
  • Polymer composites
  • Thermal stability


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