Alternating magnetic field heat behaviors of PVDF fibrous mats filled with iron oxide nanoparticles

Autor: Jinu Kim, Jung-Su Choi, Heejae Yang, Frank K. Ko, Ki Hyeon Kim
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: AIP Advances, Vol 6, Iss 5, Pp 055907-055907-6 (2016)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/1.4943054
Popis: To study the magnetic heat behaviors, iron oxide nanoparticles (IONPs) and the polyvinylidene fluoride (PVDF) fibrous mats filled with IONPs were prepared by using coprecipitaion method and the electrospinning technique. The synthesized IONPs exhibited a magnetization of about 72 emu/g with average diameter of about 10 nm. The magnetizations of PVDF fibrous mats filled with IONPs showed 2.6 emu/g, 5.5 emu/g and 9.9 emu/g for 5 wt.%, 10 wt.% and 20 wt.% IONPs concentration, respectively. The heat of the magnetic fibrous mats were measured under various alternating magnetic fields (90, 128, and 167 Oe), frequencies (190, 250 and 355 kHz). The maximum saturated temperature showed up to 62 °C for 20 wt.% IONPs filled in PVDF fibrous mat under 167 Oe and 355 kHz.
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