Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 15, 2024
Developing
lightweight
polymer
shielding
membranes
with
additional
physicochemical
properties
is
of
great
significance
for
addressing
the
complex
contemporary
security
demands.
However,
precise
structural
design
at
molecular
level
remains
a
challenge.
Herein,
unique
Janus
composite
membrane
assembled
from
conductive
AgNWs/MXene
1D/2D
network
and
polyurethane
elastomer
(MPHEA),
displaying
combined
superior
electromagnetic
effectiveness
(EMSE)
up
to
80
dB
remarkable
infrared
stealth
capability
wide
temperature
range
room
50
°C.
Moreover,
endowed
chemical
crosslinking
in
resulted
exceptional
mechanical
strength,
self-healing,
adhesion.
The
maintained
(over
20
dB)
even
under
strain
40%
recovered
efficiency
90%
after
damage
self-healing
are
observed,
which
attributed
synergistic
3D
elastic
multi-dimensional
crosslinked
MPHEA@AgNWs/MXene
membrane.
This
work
has
represented
an
excellent
micro-nano
structure
strategy
on
multifunctional
wave
manager
application
scenario.
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(13), P. 14921 - 14935
Published: June 27, 2024
The
application
of
smart
devices
and
artificial
intelligence
(AI)
technologies
has
led
to
an
increase
in
electromagnetic
interference
(EMI)
issues.
Compared
with
the
traditional
metal-based
EMI
shielding
materials,
lighter
more
efficient
polymer-based
materials
have
a
broader
prospect.
In
this
work,
we
utilized
electrospinning
calcination
techniques
synthesize
Fe3O4
nanofibers
employed
layer-by-layer
assembly
method
create
Ti3C2Tx
MXene/Fe3O4/carbon
fiber
fabric/waterborne
polyurethane
(Ti3C2Tx
MXene/Fe3O4/CFf/WPU)
composite
fabric.
Our
findings
reveal
that
fabric
possesses
superior
capabilities.
Specifically,
FMC12.5–5
material,
which
contains
12.5
wt
%
5
Ti3C2Tx,
demonstrates
remarkable
effectiveness
(SE)
(up
43.6
dB)
at
mere
0.4
mm
thickness
low
MXene
content.
Meanwhile,
achieves
significant
anisotropic
thermal
conductivity
up
0.46
W/(m
K),
fulfilling
in-plane
requirement.
Additionally,
sandwich-structured
exhibits
excellent
mechanical
performance
(Young's
modulus
is
113.5
MPa
tensile
strength
reaches
15.7
MPa)
flexible
enough
endure
repeated
bending,
folding,
shaping.
It
maintains
reliable
electrothermal
conversion
capability,
achieving
temperatures
106
°C
only
2.5
V.
This
study
expanded
exploration
enhanced
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 15, 2024
Developing
lightweight
polymer
shielding
membranes
with
additional
physicochemical
properties
is
of
great
significance
for
addressing
the
complex
contemporary
security
demands.
However,
precise
structural
design
at
molecular
level
remains
a
challenge.
Herein,
unique
Janus
composite
membrane
assembled
from
conductive
AgNWs/MXene
1D/2D
network
and
polyurethane
elastomer
(MPHEA),
displaying
combined
superior
electromagnetic
effectiveness
(EMSE)
up
to
80
dB
remarkable
infrared
stealth
capability
wide
temperature
range
room
50
°C.
Moreover,
endowed
chemical
crosslinking
in
resulted
exceptional
mechanical
strength,
self-healing,
adhesion.
The
maintained
(over
20
dB)
even
under
strain
40%
recovered
efficiency
90%
after
damage
self-healing
are
observed,
which
attributed
synergistic
3D
elastic
multi-dimensional
crosslinked
MPHEA@AgNWs/MXene
membrane.
This
work
has
represented
an
excellent
micro-nano
structure
strategy
on
multifunctional
wave
manager
application
scenario.
