Thermal transport properties of energetic composites with graphene and carbon nanotube additives: An experimental study

Keerti Kappagantula, Michelle L. Pantoya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Reactive materials such as aluminum and polytetrafluoroethylene (Teflon) are used for energy generation applications and specifically in ordnance technologies. With the advent of nanotechnology various nano-scale additives have become incorporated into reactive material formulations with the hope of enhanced performance. An important component to the study of energy generation is an examination of energy transport through a reactant matrix. This study examines an experimental approach to quantifying thermal properties of an Al/Teflon nanocomposite reactant matrix that has been impregnated with carbon additives. Various structures of carbon are investigated and include amorphous nanoscale carbon spheres (nano C), graphene flakes and unaligned multiwalled carbon nanotubes (CNTs). The additives were selected based on their completely different structures with the hypothesis that the structure of the additive will influence the thermal transport properties of the matrix. Results show graphene has the greatest influence on the thermophysical properties. For example, thermal conductivity of the composites containing graphene increased by 98%. Graphene similarly enhanced the thermal diffusivity and specific heat of the Al/Teflon matrix. Conversely, nano C and CNTs decreased the thermal conductivity and thermal diffusivity of the samples significantly.

Original languageEnglish
Title of host publicationAIChE 2012 - 2012 AIChE Annual Meeting, Conference Proceedings
StatePublished - 2012
Event2012 AIChE Annual Meeting, AIChE 2012 - Pittsburgh, PA, United States
Duration: Oct 28 2012Nov 2 2012

Publication series

NameAIChE Annual Meeting, Conference Proceedings

Conference

Conference2012 AIChE Annual Meeting, AIChE 2012
CountryUnited States
CityPittsburgh, PA
Period10/28/1211/2/12

Fingerprint Dive into the research topics of 'Thermal transport properties of energetic composites with graphene and carbon nanotube additives: An experimental study'. Together they form a unique fingerprint.

  • Cite this

    Kappagantula, K., & Pantoya, M. L. (2012). Thermal transport properties of energetic composites with graphene and carbon nanotube additives: An experimental study. In AIChE 2012 - 2012 AIChE Annual Meeting, Conference Proceedings (AIChE Annual Meeting, Conference Proceedings).