Frontiers in Chemistry,
Journal Year:
2024,
Volume and Issue:
12
Published: Aug. 2, 2024
Epoxy
resins,
known
for
their
excellent
properties,
are
widely
used
thermosetting
but
tendency
towards
brittle
fracture
limits
applications.
This
study
addresses
this
issue
by
preparing
graphene
oxide
via
the
Hummer
method,
modifying
it
with
hyperbranched
polyamide
ester,
and
reducing
hydrazine
hydrate
to
obtain
functionalized
graphene.
improves
compatibility
epoxy
resin.
Using
a
novel
two-phase
extraction
different
ratios
of
graphene/epoxy
composites
were
prepared
tested
mechanical
properties
thermal
stability.
The
results
showed
significant
improvements:
tensile
strength
0.1
wt%
increased
77%
over
pure
resin,
flexural
56%,
glass
transition
temperature
50°C.
These
enhancements,
attributed
improved
between
demonstrate
potential
mitigate
brittleness
expanding
application
potential.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 25, 2025
Abstract
Paper‐based
composites
are
excellent
choice
for
flexible
electromagnetic
shielding
materials.
Carbon
fiber
paper
(CFP),
with
its
electrical
conductivity
and
porosity,
can
be
combined
various
conductive
materials
to
further
improve
interference
(EMI)
capabilities.
However,
the
large‐scale
industrial
application
of
CFP
remains
rarely
explored
requires
research
optimize
overall
performance
commercialization.
MXene,
a
2D
material
metal‐like
conductivity,
significantly
enhance
wave
(EMW)
energy
loss.
This
study
investigates
effects
MXene
concentration
gradients
number
sprayed
layers
on
EMI
effectiveness
carbon
using
simple
spraying
process.
The
composite
is
fabricated
through
impregnation
blending
technique,
while
correlation
between
efficiency
systematically
investigated.
Results
show
that
7‐layer
achieves
an
average
SE
78.23
dB
in
X─band.
also
exhibits
hydrophobicity,
high
tensile
strength,
flexibility,
ultra‐lightweight
properties.
surface
density
assembly
only
0.08546
g
cm
−2
.
straightforward
preparation
process
this
makes
it
highly
suitable
industrial‐scale
production,
demonstrating
significant
potential
aerospace,
5G
technology,
other
related
fields.
