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Synthesis, mechanical, thermal, and electrical characterization of graphite–epoxy composites
Author(s) -
Radouane Nassima,
Depriester Michael,
Maaroufi Abdelkrim,
Singh Dharmendra Pratap,
Ouaki Bennaceur,
Duponchel Benoît,
Elass Abdelaziz,
Tidahy Lucette,
HadjSahraoui Abdelhak
Publication year - 2021
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.202000490
Subject(s) - materials science , composite material , epoxy , graphite , thermal conductivity , volume fraction , differential scanning calorimetry , percolation threshold , thermogravimetry , electrical resistivity and conductivity , chemistry , thermodynamics , inorganic chemistry , physics , engineering , electrical engineering
Herein, we present a simple procedure for fabricating epoxy/graphite composites using a simple solution blending method. The addition of graphite filler in the epoxy matrix showed a beneficial effect on mechanical properties by enhancing Young's modulus up to 55.25% of its value. The highest thermal conductivity was obtained to be 1.53 ± 0.07 W· m −1 · K −1 , which depicts a fourfold increment as compared to the neat matrix. The effective thermal conductivity has been predicted using Nan model, which shows a satisfactory agreement with the experimental data. Besides, the investigated composites display enhanced electrical conductivity; this evolution of electrical conductivity as a function of filler volume fraction is well described using percolation theory. Thermogravimetry and differential scanning calorimetry have been used to determine the thermal properties of the composites as a function of filler volume fraction. These findings indicate that the thermal, electrical, and mechanical properties of epoxy/graphite composites could be ideal for thermal management and control of heat transfer devices.