Recent Advances in Stimuli‐Responsive Materials for Electromagnetic Interference Shielding
Polymers for Advanced Technologies,
Год журнала:
2025,
Номер
36(2)
Опубликована: Фев. 1, 2025
ABSTRACT
The
increasing
proliferation
of
electronic
devices
and
advanced
communication
networks
has
resulted
in
heightened
electromagnetic
interference
(EMI),
posing
significant
challenges
both
technological
environmental
contexts.
Traditional
EMI
shielding
materials,
such
as
metals
composite
coatings,
offer
limited
adaptability
are
unable
to
meet
the
dynamic
demands
modern
systems.
Recent
advancements
have
introduced
smart
stimuli‐responsive
materials
for
shielding,
which
provide
real‐time
tunability,
thereby
addressing
limitations
conventional
static
solutions.
These
leverage
various
mechanisms—such
compressive
tensile
strains,
phase
transitions,
shape
memory
effects,
responses
chemical
agents,
humidity,
or
crossover
angle
changes—to
dynamically
adjust
their
effectiveness
(EMI‐SE).
This
review
provides
an
in‐depth
analysis
recent
progress
technologies,
highlighting
tunable
mechanisms,
material
compositions,
applications.
Furthermore,
it
discusses
existing
potential
future
research
directions
required
advancement
this
technology.
By
enabling
environments,
present
a
promising
solution
telecommunications,
wearable
electronics,
aerospace,
defense
sectors.
Язык: Английский
Hierarchical 3D FeCoNi Alloy/CNT @ Carbon Nanofiber Sponges as High-Performance Microwave Absorbers with Infrared Camouflage
Materials,
Год журнала:
2024,
Номер
18(1), С. 113 - 113
Опубликована: Дек. 30, 2024
Microwave
absorbers
with
infrared
camouflage
are
highly
desirable
in
military
fields.
Self-supporting
3D
architectures
tailorable
shapes,
composed
of
FeCoNi
alloy/carbon
nanotubes
(CNTs)
@
carbon
nanofibers
(CNFs),
were
fabricated
this
study.
On
the
one
hand,
multiple
loss
mechanisms
introduced
into
high-elastic
sponges.
Controllable
space
conductive
networks
caused
by
situ
growth
CNTs
on
CNFs
contributed
to
effective
dielectric
and
resistance
loss.
Moreover,
uniformly
distributed
magnetic
alloy
nanoparticles
(NPs)
dense
coupling
resulted
other
heterogeneous
interfaces
constructed
multicomponent
engineering,
causing
interfacial
polarization
Furthermore,
internal
structures
sponges
optimized
regulating
NPs
sizes
state
CNTs,
then
tuning
impedance
matching
microwave
absorption.
Therefore,
ultra-low
density
(7.6
mg·cm−3)
found
have
excellent
radar
infrared-compatible
stealth
properties,
displaying
a
minimum
refection
(RLmin)
−50.5
dB
maximum
absorption
bandwidth
(EABmax)
5.36
GHz.
effect
was
evaluated
cross-section
(RCS)
simulation,
revealing
that
multifunctional
promising
prospect
applications.
Язык: Английский