Journal of Aeronautical Engineering

Journal of Aeronautical Engineering

Synthesis of epoxy substrate graphene oxide nanoparticles with the approach of reducing RCS and increasing the thermal resistance of UAVs

Document Type : Original Article

Authors
mehdi aslinezhad 1
Alireza Malekijavan 2
Masoud Hoseinzadeh 3
1 1384663113
2 Shahid Sattari University / head of the Faculty
3 , Lecturer at Shahid Sattari University of Aeronautical Engineering
10.22034/joae.2021.301398.1032
Abstract
Polymer nanocomposites have high strength, low weight, thermal stability, electrical conductivity, and high chemical resistance. In this paper, graphene oxide nanoparticles are synthesized using the modified Hammers method and then to improve the thermal properties of the epoxy coating, prevent the accumulation of nanoparticles, and their proper distribution on the epoxy surface by triethoxysilane (3-aminopropyl) (APTES) Have become functional. The innovation of this paper is the synthesis of graphene oxide nanoparticles in an epoxy resin substrate which, in addition to investigating the microwave absorption properties, can also increase the thermal resistance. The results of the thermal analysis also show that the residual materials at 500 ° C for graphene oxide, GO and epoxy are 3.7, 62.4, and 8.21 percent, respectively. Due to the fact that the thickness of the sample has increased, when graphene oxide nanoparticles with 10% by weight are used, the losses at the frequency of 9.5 GHz reach their maximum value - 57 dB. Accordingly, because the number of casualties in this analysis was high, it is a good option to put the cover on a drone. The results of UAV modeling show that coatings containing graphene oxide nanoparticles at the highest wattage (10 wt%) can reduce the radar cross-section from -15 to -25 dB.
Keywords
Reduce radar cross section
Graphene oxide
Electromagnetic waves
Epoxy resin
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Journal of Aeronautical Engineering
Volume 23, Issue 2
December 2021
Pages 68-79

  • Receive Date 25 August 2021
  • Revise Date 24 November 2021
  • Accept Date 21 December 2021