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Microwave absorption characterization and wettability of magnetic nano iron oxide/recycled PET nanofibers web
Authors:Fatemeh Mohammadkhani  Masoud Latifi
Affiliation:1. Department of Textile Engineering, Functional Fibrous Structures &2. Environmental Enhancement (FFSEE), Amirkabir University of Technology, Tehran, Iran
Abstract:This paper describes the microwave characterization and wettability of a uniform and light magnetic nanofibers web. Iron oxide nanoparticles/recycled poly (ethylene terephthalate) nanofibers web (Fe3O4 NPs/RPET NFs web) were fabricated from bath-sonication solution via electrospinning method. For environmental conservation and economic reasons, RPET instead of virgin material was used. After synthesizing magnetic Fe3O4 NPs with an average diameter of 35?nm by precipitation method using iron sulfate and sodium hydroxide, Fe3O4 NPs/RPET NFs web was made. The main objective of this work is to show how Fe3O4 NPs are able to significantly modify electromagnetic properties at X-band frequencies. Microwave characterization is based on the microwave scattering parameters measured in the X-band (8–12?GHz). Various characterization methods, including field emission-scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and vibrating sample magnetometer (VSM), have been used to study morphologies, crystalline structure, magnetic, and wettability properties of NFs web. The saturation magnetization of the Fe3O4 NPs/RPET NFs web at a concentration of 5% was 2.79?emu/g. The mathematical model was estimated for magnetization, diameter and concentration by MathWorks Model Predictive Control Toolbax Software. The wettability, reflection coefficient, absorption coefficient, and EMI shielding of Fe3O4 NPs/RPET NFs web have been improved compared to RPET NFs web.
Keywords:Recycled PET nanofibers web  magnetic property  wettability  microwave absorption  Fe3O4 NPs
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