Yusmaniar, W.A. Adi, Y. Taryana, R. Muzaki
Synthesis and characterization of UPR/Fe3O4 composite were performed to evaluate its potency as a electromagnet absorbent. The composite was prepared from the mixture of unsaturated polyester resin and magnetite powder of iron oxide. Fe3O4 was used as filler and unsaturated polyester resins (UPR) was used as a matrix. Fe3O4 magnetite was synthesized from iron objects using electro synthesis method. The raw material was blended in the beaker glass for 120 min and then pressed at temperature of 60 °C for 30 min. The composite is in a semi-crystalline form that consists of amorphous matrix and the various crystalline fillers. The functional group's analysis of the composite showed that crosslink (bridges) was formed between the chains of individual polymer and between Fe3O4 magnetite filler and UPR matrix. The performance of microwave absorbent measured by VNA method showed the highest RL at the frequency of 10.44 GHz and 11.74 dB. This value was achieved with a composition of 10wt% Fe3O4 and 90wt% UPR. We concluded that the composite of UPR/Fe3O4 has been successfully demonstrated as an electromagnetic wave absorber. © Published under licence by IOP Publishing Ltd.
Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta, Jl. Pemuda No 10, Rawamangun, Jakarta, 13220, Indonesia; Centre for Science and Technology of Advanced Materials, National Nuclear Energy Agency, Kawasan Puspiptek Serpong, Tangerang Selatan, Banten, Indonesia; Centre for Research of Telecommunication and Electronic, Indonesia Institute of Science, Komplek LIPI Sangkuriang, Jawa Barat, Bandung, Indonesia
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