Polymer Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 24, 2025
Abstract
Carbon
fiber‐reinforced
polymer
composites
(CFRPs)
that
integrate
structural
and
functional
properties,
such
as
excellent
electromagnetic
interference
(EMI)
shielding
mechanical
strength,
are
crucial
for
advanced
material
applications.
However,
simultaneously
achieving
both
high
EMI
effectiveness
(SE)
strength
in
CFRPs
remains
a
significant
challenge,
primarily
due
to
the
low
conductivity
of
resin
matrices
complex
interfacial
interactions.
In
this
study,
we
propose
chemical
bond‐regulated
heterogeneous
interface
engineering
strategy
achieve
concurrent
improvements
properties
CFRPs.
The
composites,
enhanced
through
collaborative
effect
silane
coupling
agent
3‐aminopropyltriethoxysilane
(KH550)
carbon
nanotubes
(CNTs),
attained
an
SE
78.0
dB,
which
constitutes
188.8%
enhancement
compared
baseline
polyamide
6
(CF/PA6)
composite.
Additionally,
interlaminar
shear
(ILSS)
increased
by
61.3%,
representing
one
best
results
literature.
Detailed
investigations
revealed
formation
conductive
networks
interfaces
between
CF
KH550
CNT/PA6
with
KH550,
along
bonding,
significantly
contribute
wave
attenuation
reinforcement.
This
study
presents
novel
design
approach
developing
next‐generation
high‐performance
efficient
robustness.
Highlights
&
CNT
create
interfaces,
boosting
strength.
Multiple
improve
performance.
Chemical
bonds
key
mechanics
boost.
dB
(188.8%
above
baseline)
Interlaminar
improved
among
reported.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 4, 2024
Abstract
Electromagnetic
interference
(EMI)
shielding
materials
with
low
electromagnetic
(EM)
waves
reflection
characteristics
are
ideal
for
blocking
EM
radiation
and
pollution.
Materials
reflectivity
must
be
constructed
using
excellent
absorption
properties.
However,
simultaneously
possessing
both
EMI
performance
remain
scarce,
consequently,
multilayer
structures
need
to
developed.
Poly(p‐phenylene–2,6–benzobisoxazole)
nanofibers
(PNF)
prepared
by
deprotonation.
PNF
combined
MXene
heterostructure
MXene@Ni
in‐situ
growth;
MXene@Ni/PNF
acts
as
an
layer
while
MXene/PNF
reflective
layer.
Finally,
(MXene@Ni/PNF)–(MXene/PNF)
aerogels
layer‐by‐layer
freeze‐drying
based
on
the
layered
modular
design
concept.
Experimental
characterizations
revealed
that
enable
efficient
absorption‐reflection‐reabsorption
of
waves,
effectively
eliminating
EMI.
When
mass
ratio
Ni
in
is
1:6
fraction
80
wt.%,
exhibit
(71
dB)
a
very
coefficient
(R
=
0.10).
Finite
element
simulations
verified
developed
asymmetric
structural
achieve
high
characteristics.
In
addition,
display
infrared
camouflage
ability.
Achieving
dual
functionalities
of
hydrophobicity
and
excellent
microwave
transmission
in
a
single
material
remains
significant
challenge,
especially
for
advanced
applications
aerospace,
telecommunications,
navigation
engineering.
Inspired
by
natural
designs
like
chestnut
burrs,
bioinspired
polyaniline
(PANI)
particles
with
tunable
micro-/nanostructures
through
facile
template-free
polymerization
process
have
been
developed.
By
regulating
the
polarity
reaction
system,
temperature,
time,
various
hierarchical
structures,
including
cross-linked
nanosheets,
burr-like
spheres,
starburst
flower-like
are
synthesized.
The
spiny
projections
surface
roughness
endow
unique
structure,
achieving
superior
properties.
formation
structures
is
driven
intermolecular
interactions
during
nucleation
growth
processes.
presence
both
hydrophobic
hydrophilic
domains
within
PANI
leads
to
coexistence
large
water
contact
angles
up
152°
high
energy.
optimized
structure
minimizes
charge
carrier
mobility,
dipole
relaxation,
dielectric
loss.
A
efficiency
96%
achieved
these
combined
factors.
disclosing
relationship
between
wettability,
properties,
design
protocol
bionic
regulation
established
achieve
superhydrophobic
microwave-transparent
functions.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Flexible
strain
sensors
are
broadly
investigated
in
electronic
skins
and
human-machine
interaction
due
to
their
light
weight,
high
sensitivity,
wide
sensing
range.
Hydrogels
with
unique
three-dimensional
network
structures
widely
used
flexible
for
exceptional
flexibility
adaptability
mechanical
deformation.
However,
hydrogels
often
suffer
from
damage,
hardening,
collapse
under
harsh
conditions,
such
as
extreme
temperatures
humidity
levels,
which
lead
sensor
performance
degradation
or
even
failure.
In
addition,
the
failure
mechanism
environments
remains
unclear.
this
review,
of
hydrogel
various
conditions
examined.
Subsequently,
strategies
towards
environmental
tolerance
summarized.
Finally,
current
challenges
discussed,
along
potential
directions
future
development
applications.
