Document Type : Original Article
Authors
1
Department of Aerospace Engineering, Aeronautical University of Science and Technology, Tehran, Iran
2
Faculty member, Department of Aerospace Engineering, Aeronautical University of Science and Technology, Tehran, Iran
3
Graduate Center, Aeronautical University of Science and Technology, Tehran, Iran
10.22034/ijme.2024.426954.1879
Abstract
Fumed Silica nanoparticles are widely used as fillers in various industries such as aerospace, building, transportation, health, and more. Considering the lightweight, thermal insulation properties and suitable compressive strength and, the use of this filler as an increaser of resin viscosity to glue different parts in the aerospace industry, in this study, the effect of Fumed silica nanoparticles filler on the mechanical and electrical properties of epoxy/Fumed silica polymer Nano composite has been investigated. To achieve optimal properties, samples with different weight percentages were made. To determine the mechanical properties of the produced composites, the tensile test and the three-point bending test were performed, and to determine the electrical properties of the samples, the dielectric constant test was performed. In the end, the mechanical and electrical properties of the samples with different weight percentages were compared with the pure epoxy resin sample. The results showed that the maximum tensile strength of pure resin samples, Fumed silica 5% and 9% are 18, 16, and 10 MPa, respectively. The maximum flexural strength for resin, Fumed silica 5%, and 9% were 109, 85, and 67 MPa, respectively. The maximum dielectric constant measured for resin, Fumed silica 5% and 9% were obtained as 2.95, 2.97, and 3.09 respectively. The maximum Loss tangent measured for pure resin, Fumed silica 5% and 9% were obtained as 0.16, 0.17, and 0.23 respectively. The results of electrical properties indicate that the addition of Fumed silica filler to the resin did not affect the electrical properties of the resin.
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