ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(3), С. 3403 - 3414
Опубликована: Янв. 18, 2024
Electromagnetic
interference
(EMI)
shielding
is
vital
for
electronic
device
reliability
and
combating
electromagnetic
wave
(EMW)
pollution.
In
this
research,
we
employed
a
vacuum-assisted
filtration
method
to
fabricate
MXene
membranes
achieved
the
construction
of
robust
PAA/MXene
hybrid
by
incorporating
polyamic
acid
(PAA)
adhesive
containing
imidazole
rings
through
cation–π
interactions.
The
integration
PAA
led
reduction
in
internal
pores
thickness
membrane,
mainly
attributed
reinforcing
interactions
that
enhance
interlayer
forces
among
nanosheets.
This
substantially
enhances
tensile
strength
concurrently
induces
alterations
their
fracture
behavior.
Adding
small
amount
greatly
increased
conductivity
but
excessive
amounts
resulted
severe
decline.
When
content
remained
below
2
wt
%
nanosheets,
EMI
SET
membrane
exhibited
minimal
fluctuations,
consistently
exceeding
60
dB.
mechanism
primarily
relied
on
reflection,
with
reflected
waves
accounting
over
60%
incident
EMWs.
utilization
approach
significantly
interface
thereby
holding
immense
potential
advanced
modification
materials.
The
urgent
need
for
the
development
of
micro-thin
shields
against
electromagnetic
interference
(EMI)
has
sparked
interest
in
MXene
materials
owing
to
their
metallic
electrical
conductivity
and
ease
film
processing.
Meanwhile,
postprocessing
treatments
can
potentially
exert
profound
impacts
on
shielding
effectiveness
(SE).
This
work
comprehensively
compares
two
reduction
methods,
hydrazine
versus
thermal,
fabricate
foamed
titanium
carbonitride
(Ti
ACS Applied Electronic Materials,
Год журнала:
2024,
Номер
6(5), С. 3704 - 3716
Опубликована: Апрель 26, 2024
The
development
of
advanced
technology
recently
has
led
to
the
innovation
smart
wearable
electronic
devices.
fabrication
polymeric
composites
that
can
achieve
exceptional
electromagnetic
interference
(EMI)
shielding
and
efficiently
dissipate
heat
while
maintaining
superior
mechanical
flexibility
electrical
insulation
been
a
long-standing
objective.
However,
accomplishing
these
multiple
objectives
is
challenge,
particularly
when
working
with
thinner
film
thicknesses.
To
address
this
demand,
work
presents
facile
approach
utilizing
boron
arsenide
(BA)
based
aramid
nanofibers
(ANF)
silver
nanowires
(AgNWs)
create
an
alternating
multilayered
structure
(AMS),
employing
vacuum
filtration
method.
This
technique
allowed
us
investigate
how
different
structures
impact
mechanical,
EMI
shielding,
thermal
conductivity
properties
composites.
resultant
composite
denoted
as
BA50@ANF-3/AgNWs-2,
which
features
AMS
three
layers
BA
(50
wt
%)
ANF
two
AgNWs,
we
observed
tensile
strength
137.83
MPa
fracture
strain
5.96%.
Additionally,
demonstrated
impressive
efficiency
(EMI
SE),
reaching
54
dB
at
thickness
30
μm.
Notably,
optimal
displays
in
both
through-plane
in-plane
directions
10.92
28.125
W/(m
K),
respectively.
study
serves
valuable
guide
for
high-performance
materials
by
leveraging
innovative
structural
design
techniques.
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(6), С. 5819 - 5830
Опубликована: Фев. 15, 2024
Miniaturized,
flexible,
and
highly
integrated
electronic
devices
have
become
an
essential
part
of
everyday
life.
This
has
contributed
to
a
huge
increase
in
the
emission
electromagnetic
(EM)
waves
resulted
interference
(EMI),
which
can
affect
function
devices.
So,
high-performance
EMI
shielding
materials
assume
great
importance.
Low
density
favorable
flexibility
are
desirable
properties
for
these
materials.
The
present
study
reports
tellurium
nanoparticles
(Te
NPs)
incorporated
into
nitrogen-doped
carbon
nanofiber
(Te-CNF)
prepared
through
electrospinning,
followed
by
carbonization,
applications.
Tellurium
is
metalloid
with
narrow
band
gap,
incorporation
Te
NPs
(CNF)
may
alter
improve
3D
conductive
network.
also
introduce
polarization
sites
heterointerfaces
CNF.
Te-CNF
exhibited
average
effectiveness
37
dB
X-band
region
thickness
0.08
mm
0.499
g
cm–1
possessed
high
electrical
conductivity
0.68
S
cm–1.
higher
SEA
values
compared
SER
due
synergistic
effect
CNF,
such
as
interfacial
polarization,
conduction
loss,
multiple
scattering
internal
reflections
EM
waves.
Poly(dimethylsiloxane)
(PDMS),
common
flexible
substrate,
been
used
ease
handling
mat.
Thus,
property
PDMS
substrate
made
use
composite
achieve
material.
its
composites
lightweight,
hydrophobic
exhibit
property.
