Thermal Analysis of Montmorillonite/Graphene Double-Layer Coating as a Potential Lightning Strike Protective Layer for Cross-Linked Epoxy by Molecular Dynamics Simulation

F Rahmani and S Nouranian, ACS APPLIED NANO MATERIALS, 1, 2521-2525 (2018).

DOI: 10.1021/acsanm.8b00758

Nonreactive molecular dynamics simulations were performed to determine the thermal conductivities and through-thickness temperature profiles of unprotected cross-linked epoxy, as well as protected epoxy with graphene (Gr) and montmorillonite (MMT)/Gr surface coatings against lightning strike damage. Three representative hot surface temperatures of 500, 1000, and 10000 K were used for thermal analysis. The MMT/Gr double- layer coating provided the most efficient thermal shielding of the epoxy sublayer, and the epoxy/MMT/Gr system exhibited a 55% lower thermal conductivity than the neat epoxy. The results imply that the MMT/Gr double-layer coating may be used for lightning strike protection.

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