Model Approach to Thermal Conductivity in Hybrid Graphene–Polymer Nanocomposites

Andriy B. Nadtochiy; Alla M. Gorb; Borys M. Gorelov; Oleksiy I. Polovina; Oleg Korotchenkov; Viktor Schlosser

doi:10.3390/molecules28217343

Titel

Model Approach to Thermal Conductivity in Hybrid Graphene–Polymer Nanocomposites

Autor*in

Andriy B. Nadtochiy

Faculty of Physics, Taras Shevchenko National University of Kyiv

Alla M. Gorb

Faculty of Physics, Taras Shevchenko National University of Kyiv

Borys M. Gorelov

Chuiko Institute of Surface Chemistry, NAS of Ukraine

... show all

Abstract

The thermal conductivity of epoxy nanocomposites filled with self-assembled hybrid nanoparticles composed of multilayered graphene nanoplatelets and anatase nanoparticles was described using an analytical model based on the effective medium approximation with a reasonable amount of input data. The proposed effective thickness approach allowed for the simplification of the thermal conductivity simulations in hybrid graphene@anatase TiO2 nanosheets by including the phenomenological thermal boundary resistance. The sensitivity of the modeled thermal conductivity to the geometrical and material parameters of filling particles and the host polymer matrix, filler’s mass concentration, self-assembling degree, and Kapitza thermal boundary resistances at emerging interfaces was numerically evaluated. A fair agreement of the calculated and measured room-temperature thermal conductivity was obtained.

Stichwort

multilayer grapheneanataseepoxypolymer nanocompositesthermal conductivityKapitza thermal boundary resistance

Objekt-Typ

journal article

Sprache

Englisch [eng]

Persistent identifier

phaidra.univie.ac.at/o:2068545

DOI

10.3390/molecules28217343

Erschienen in

Titel