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Nano Research & Applications
ISSN 2471-9838
Advanced Nano 2017
Notes:
Page 49
September 11-12, 2017 Amsterdam, Netherlands
20
th
International Conference on
Advanced Nanotechnology
Preparation and study on radar absorbing materials
of epoxy-Fe3O4 composites and the influence of PANI
on microwave absorbing properties of NiFe2O4/PVB
composites
Yuksel Akinay
1
, F Hayat
1
, E Akin
2
and
M Cakir
2
1
University of Karabuk, Turkey
2
Marmara University, Turkey
M
icrowave absorption properties of epoxy matrix
with magnetite fillers were investigated in this work.
The composite were prepared via ultrasonic probe
sonicator method in solution. The complex permittivity
and permeability for epoxy matrix magnetite fillers
radar absorbing composites were measured at different
microwave frequencies via vector network analyzer. The
obtained results describe the frequency dependence
of permittivity and permeability with various powder
percentage and composite thickness. The reflection
loss (RL) of composites was calculated and evaluated
from complex permittivity and permeability. The obtained
results show that both composites exhibit the large RL and
broadband within the frequency range from 1 to 14 GHz
for different thickness. The results show that absorption
has increased as the fillers rate increase and thickness
is decreased. This can be understood based on quarter-
wave principle within the frequency range from 1 GHz-14
GHz for different thickness.
The influence of polyaniline on microwave absorbing
properties of polyvinylbutiral (PVB)/NiFe2O4 composites
were investigated in the 1-14 GHz. In this sense,
polyaniline (PANI) doped with para-toluene sulfonic acid
were introduced into PVB matrix. PVB/filler particles
(NiFe2O4) composites were prepared with 85/15 mixture
ratios via Ultrasonic Probe Sonicator method in solution.
The composite of PANI/PVB/NiFe2O4 (PANI:PVB = 1:3
and (PANI+PVB):NiFe2O4 = 85:15) was prepared via
same method of PVB/NiFe2O4 composite. complex
permittivity (ε’- jε’’and permeability (μ’- jμ’’) of the
composites have been measured at different microwave
frequencies in 1–14 GHz employing vector network
analyzer (Keysight N9926A). The reflection loss (RL)
of composites was calculated and evaluated using the
theory of the absorbing wall. It was found that the addition
of aniline has reduced the reflection loss values but
increased the bandwidth within the frequency range from
1 GHz-14 GHz for different thickness.
Biography
Yuksel Akinay is a Research Assistant at Materials Research and Development
Center of Karabük University, Turkey. He obtained his Bachelor’s degree
from Metallurgical and Material Engineering Department, University of Yıldız
Technical University, Istanbul, Turkey, in 2010. He has a PhD degree. His
research interests include polymer composite materials, nanocomposite,
electromagnetic wave absorbing and micro-structure characterization..
yukselakinay@karabuk.edu.trYuksel Akinay et al., Nano Res Appl 2017, 3:3
DOI: 10.21767/2471-9838-C1-002