Model Approach to Thermal Conductivity in Hybrid Graphene–Polymer Nanocomposites

Autor(en)

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

Abstrakt

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.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Taras Shevchenko National University of Kyiv (KNU), National Academy of Sciences of Ukraine (NASU), Erwin Schrödinger Institut

Journal

Molecules

Band

28

Anzahl der Seiten

31

ISSN

1420-3049

DOI

https://doi.org/10.3390/molecules28217343

Publikationsdatum

11-2023

Peer-reviewed

Ja

ÖFOS 2012

104014 Oberflächenchemie, 210004 Nanomaterialien

Schlagwörter

ASJC Scopus Sachgebiete

Analytical Chemistry, Chemistry (miscellaneous), Molecular Medicine, Pharmaceutical Science, Drug Discovery, Physical and Theoretical Chemistry, Organic Chemistry

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/2820033d-3025-46c1-8f37-8cc8a3e39fc6