Polymer Composites,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 24, 2024
Abstract
With
the
advancement
of
technology,
demand
for
high‐performance
stealth
materials
with
complex
structures
has
increased
significantly.
This
study
explores
integration
design,
manufacturing,
and
evaluation
using
fused
deposition
modeling
(FDM)
combined
advanced
absorbing
materials.
Focusing
on
nylon‐based
filaments
optimized
broadband
absorption,
research
is
inspired
by
microstructure
weaver
ant's
back
shell
to
create
a
thin‐layer,
wideband
structure
wide‐angle
response,
employing
trust
region
algorithm.
high
dielectric
loss
materials,
bionic
FDM
technology
enhances
manufacturing
efficiency
reduces
structure's
thickness.
The
resulting
achieves
absorption
from
3.56
40
GHz,
excellent
angular
adaptability,
mechanical
robustness.
Compared
gradient
cell
structures,
it
thickness
33%
extends
frequency
range
5%.
approach
offers
lightweight,
solution
next‐generation
applications.
Highlights
Biomimetic
design‐manufacturing‐evaluation
integration.
Trust
domain
algorithm
optimization.
Improve
combining
macro
micro
Additive
cross‐enabled
functional
material
design.
Journal of Materials Chemistry C,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Based
on
the
understanding
of
photothermal
catalysis,
this
review
summarizes
recent
progress
CeO
2
-based
multicomponent
catalysts
for
catalytic
CO
reduction.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Янв. 8, 2025
To
protect
against
harmful
electromagnetic
interference
(EMI),
it
is
crucial
to
fabricate
composite
with
high
total
shielding
efficiency
(SET);
In
this
study,
FeNi3-NiFe2O4-SiO2
nanoparticles
(NPs)
were
synthesized
using
one-pot
method
and
decorated
on
carbon
nanotube's
(CNT)
sidewall.
The
final
product
was
magnetic-ceramic/conductive
(FeNi3-NiFe2O4-SiO2/MWCNT)
nanocomposite.
EMI
characteristic
of
NPs
FeNi3-NiFe2O4-SiO2/MWCNT
nanocomposite
investigated
in
the
range
X
Ku
frequency
band.
results
indicated
effectiveness
a
thickness
3.5
mm
which
25dB
(SET>20dB
~
90%)
at
an
entire
higher
than
that
nanoparticles,
because
multi
wall
nanotube
(MWCNT)
improved
AC
conductivity
nanoparticles.
Overall,
promising
material
prevents
from
passing
95%
incident
wave
through
itself.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 28, 2025
Abstract
Excessive
electromagnetic
pollution
caused
by
waves
can
interfere
with
the
normal
use
of
electronic
devices
or
cause
unnecessary
damage
to
human
health.
Although
conductive
polymer
composites
(CPCs)
are
used
replace
traditional
metals
as
an
effective
strategy
for
managing
undesirable
waves,
CPCs
have
a
non‐negligible
trade‐off
in
enhancement
interference
(EMI)
shielding
effectiveness
and
absorption
coefficient
because
their
reflection‐dominated
EMI
mechanism.
Therefore,
alleviate
secondary
pollution,
absorption‐dominated
asymmetric
structures
urgently
needed.
Recently,
structural
designs
advanced
significantly,
but
seldom
been
summarized
discussed
detail.
Consequently,
this
review
first
systematically
summarizes
current
progress
after
brief
clarification
about
necessity
configuration
structure
design.
Afterward,
various
fiber,
layered,
porous,
composite
described.
Besides,
versatility
is
briefly
introduced.
Finally,
challenges
prospects
proposed
guide
future
advancement
field.
Polymer Composites,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 14, 2025
Abstract
The
burgeoning
prevalence
of
electronic
devices
necessitates
effective
control
electromagnetic
interference
(EMI)
to
prevent
device
malfunctions
and
safeguard
environmental
human
health.
MXene,
with
its
unique
combination
high
electrical
conductivity
large
surface
area,
emerges
as
a
promising
candidate
for
EMI
shielding
applications.
This
study
investigates
the
influence
MXene
nanoparticle
concentration
coating
thickness
on
effectiveness
(EMI
SE)
epoxy‐MXene
nanocomposite
coatings.
Ti3C2
was
synthesized
incorporated
into
epoxy
matrices
at
varying
loadings
(3–30
wt.%)
fabricate
coatings
thicknesses
100
μm
1
mm.
Results
demonstrate
significant
enhancement
in
SE,
ranging
from
5
39
dB
X‐band
(7.5–13
GHz),
increasing
content.
Moreover,
mechanical
properties
matrix
were
observed
improve
addition
particularly
higher
concentrations.
Notably,
while
low
initially
resulted
slight
reduction
Young's
modulus,
subsequent
increases
content
led
substantial
enhancements
both
modulus
strength.
Dynamic
analysis
revealed
trend
towards
increased
elastic
behavior
reduced
energy
dissipation
highlights
potential
MXene‐based
composites
high‐performance
materials
tailored
properties.
Highlights
Successful
synthesis
confirmed
by
x‐ray
diffraction.
Enhanced
MXene‐epoxy
composites.
Thicker
improved
SE
A
T
.
Higher
generally
shielding.
MXene‐reinforced
offer
