STUDY OF RADIO TRANSPARENCY AND DIELECTRIC PERMITTIVITY OF GLASS- AND ARAMID EPOXY COMPOSITES
Yermakhanova A.M. Kenzhegulov A.K. Meiirbekov M.N. Samsonenko A.I. Baiserikov B.M.
2023E.A. Buketov Karaganda University Publish house
Eurasian Physical Technical Journal
2023#20Issue 2-4470 - 78 pp.
Aramide- epoxy-filled composites are widely used for manufacturing in the structures of modern aerospace vehicles. Not only do they have excellent mechanical properties, but they are also radio-transparent materials for wave transmission. In this work, an epoxy-filled composite and a fibreglass were made by vacuum infusion for a comparative study on radio transparency and dielectric permittivity. The radio transparency of the materials analyzed has been evaluated by measuring in free space in the frequency ranges of 1-6 GHz. According to the results of radio transparency, aramide- epoxy-filled composite suffers less electromagnetic wave losses than in fibreglass. When measuring the dielectric permittivity of the aramide- epoxy-filled composites, a low average value of 2.874 has been set, whereas for the fibreglass is defined at 4.
aramide-epoxy-filled composites , epoxide resin , fibreglass , frequency,dielectric permittivity , radio transparency
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JSC National Center of Space Research and Technology, Almaty, Kazakhstan
Satbayev University, JSC Institute of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan
Satbayev University, Almaty, Kazakhstan
SLLP Institute of Space Engineering and Technology, Almaty, Kazakhstan
JSC National Center of Space Research and Technology
Satbayev University
Satbayev University
SLLP Institute of Space Engineering and Technology
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