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Physical characterization and performance of iron polymer composites
Author(s) -
Zihlif A. M.,
AlRamadin Y.,
Sbeih S. A.
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36417
Subject(s) - materials science , composite material , dielectric , dielectric loss , polymer , atmospheric temperature range , conductivity , electrical resistivity and conductivity , activation energy , thermal conductivity , particle size , iron oxide , chemical engineering , chemistry , physics , optoelectronics , organic chemistry , meteorology , electrical engineering , metallurgy , engineering
The physical properties of poly(ethylene oxide) (PEO) composites containing natural iron oxides with different concentrations 2, 4, 6, 8, 10, 15, and 20% by weight were studied. Powder of iron oxides of 63‐μm particle size was casted with PEO polymer. Absorption UV spectra were collected in the wavelength range 300–800 nm by using a spectrophotometer. The optical energy gap and energy tail widths of localized states of the prepared composites were determined from Urbach formula. The electrical properties were studied using AC impedance measurements performed at different temperatures and in frequency range 100 kHz to 1 MHz. Impedance, dielectric constant, dielectric loss, and AC‐conductivity showed frequency and temperature dependence. The thermal conductivity of the composites was studied as a function of iron oxides concentration and in temperature range 20–50°C. It was found that the thermal conductivity of the composites increases with filler concentration and temperature. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012