Polymer Composites,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 18, 2025
Abstract
Light
weight
carbon‐coated
nickel
(CCNi)/poly(ether‐ketone)
(PEK)
nanocomposites
reinforced
with
0–3.87
vol%
(or
5
wt%)
multiwalled
carbon
nanotubes
(MWCNTs)
have
been
fabricated
using
high
energy
ball
mill
followed
by
hot
pressing
and
evaluated
for
electromagnetic
interference
(EMI)
shielding
effectiveness
(SE)
in
the
X‐band
(8.2–12.4
GHz).
The
MWCNTs/CCNi/PEK
nanohybrids
show
electrical
conductivity
EMI‐SE
one
order
of
magnitude
85%
higher
than
those
without
MWCNTs,
respectively.
Experimentally,
it
is
found
that
absorption
major
mechanism
while
reflection
secondary.
Such
an
excellent
(i.e.,
29.5
dB)
value
obtained
at
a
very
low
density
(~
1.45
g/cm
3
)
makes
potential
candidates
defense,
space,
aerospace
applications.
Highlights
Lightweight
multifunctional
advanced
MWCNT/Ni@C/PEK
were
proposed.
Nanohybrids
containing
MWCNT
exhibited
MWCNT.
Combined
addition
Ni@C
into
PEK
yielded
synergetic
improvement
conductivity.
about
dB,
which
better
reported
literature.
International Journal of Biological Macromolecules,
Год журнала:
2024,
Номер
277, С. 133891 - 133891
Опубликована: Июль 16, 2024
Electronic
systems
and
telecommunications
have
grown
in
popularity,
leading
to
increasing
electromagnetic
(EM)
radiation
pollution.
Environmental
protection
from
EM
demands
the
use
of
environmentally
friendly
products.
The
design
interference
(EMI)
shielding
materials
using
resources
like
nanocellulose
(NC)
is
gaining
traction.
Cellulose,
owing
its
biocompatibility,
biodegradability,
excellent
mechanical
thermal
properties,
has
attracted
significant
interest
for
developing
EMI
materials.
Recent
advancements
cellulose-based
materials,
particularly
modified
cellulosic
composites,
are
highlighted
this
study.
By
incorporating
metallic
coatings
compounded
with
conductive
fillers
inherently
elements,
conductivity
effectiveness
can
be
significantly
improved.
This
review
discusses
introduction
shields,
cellulose,
NC,
assessing
shield
options
diverse
NC-based
composite
shields
considering
their
low
reflectivity.
study
offers
new
insights
into
designing
advanced
composites
applications.
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.
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
