ACS Applied Materials & Interfaces,
Год журнала:
2021,
Номер
13(22), С. 26505 - 26514
Опубликована: Май 28, 2021
Multifunctionalization
is
an
important
development
direction
of
electromagnetic
interference
(EMI)-shielding
materials.
However,
it
still
a
huge
challenge
to
effectively
integrate
multiple
functions
into
Herein,
we
reported
facile
method
fabricate
multifunctional
EMI-shielding
materials,
which
were
assembled
with
multidimensional
components
consisting
3D
melamine–formaldehyde
(MF)
foam
skeleton,
0D
ferroferric
oxide
(Fe3O4)
nanoparticles,
and
1D
silver
nanowires
(AgNWs)
via
coprecipitation
dip-coating
processes.
Due
the
coaction
conductive
AgNWs
magnetic
Fe3O4
resultant
hybrid
showed
excellent
absorption-dominant
performances
high
specific
effectiveness
value
12,704
dB
cm2
g–1.
Moreover,
thanks
multilayer
porous
micro-/nanostructure
nonflammability
functional
coatings,
shows
flame
retardancy
heat
insulation,
making
attractive
for
infrared
stealth
insulation.
The
corresponding
mechanism
discussed
in
detail.
Combined
advantages
thermal
retardancy,
elasticity,
performances,
great
applications
fields
both
military
civilian.
This
work
provides
new
inspiration
insights
design
high-performance
EMI-absorbing
ACS Applied Materials & Interfaces,
Год журнала:
2021,
Номер
13(50), С. 60478 - 60488
Опубликована: Дек. 13, 2021
Stretchability
and
multifunctional
heating
abilities
are
highly
desired
for
wearable
electromagnetic
interference
(EMI)
shielding
fabrics
to
tackle
the
growing
pollution
special
crowd,
such
as
pregnant
women.
Herein,
we
fabricated
stretchable
MXene-coated
thermoplastic
polyurethane
(TPU)
by
simple
uniaxial
prestretching
spraying
methods.
The
obtained
unique
wrinkled
structure
endowed
film
with
effective
strain-invariant
electrical
conductivity
EMI
properties.
Specifically,
prepared
an
extremely
low
MXene
loading
(0.417
mg
cm-2)
exhibited
a
stable
effectiveness
of
approximately
30
dB
under
50%
tensile
strain
durability
during
stretching
bending
cycles.
More
importantly,
owing
high
localized
surface
plasmon
resonance
(LSPR)
effect
layer,
excellent
Joule
(up
104
°C
at
voltage
5
V)
superior
photothermal
conversion
abilities.
Moreover,
MXene-coating
layer
not
only
endows
heat
but
also
enhances
performance
increasing
light
absorption
area
travel
path.
We
believe
that
this
study
offers
novel
strategy
versatile
design
fabrics.
Angewandte Chemie,
Год журнала:
2022,
Номер
135(5)
Опубликована: Ноя. 22, 2022
Abstract
Thermal
conduction
for
electronic
equipment
has
grown
in
importance
light
of
the
burgeoning
5G
communication.
It
is
imperatively
desired
to
design
highly
thermally
conductive
fillers
and
polymer
composite
films
with
prominent
Joule
heating
characteristics
extensive
mechanical
properties.
In
this
work,
“solvothermal
&
situ
growth”
method
carried
out
prepare
“Fungal
tree”‐like
hetero‐structured
silver
nanowires@boron
nitride
nanosheet
(AgNWs@BNNS)
fillers.
The
AgNWs@BNNS/ANF
are
obtained
by
“suction
filtration
self‐assembly
hot‐pressing”.
When
mass
fraction
AgNWs@BNNS
50
wt%,
film
presents
optimal
thermal
conductivity
coefficient
9.44
W/(m
⋅
K)
excellent
tensile
strength
136.6
MPa,
good
temperature‐voltage
response
characteristics,
superior
electrical
stability
reliability,
which
promise
a
wide
application
potential
devices.
