Polymers,
Год журнала:
2024,
Номер
16(11), С. 1483 - 1483
Опубликована: Май 23, 2024
This
paper
presents
an
experimental
investigation
of
nanocomposites
composed
three
ratios
epoxy/graphene
nanoplatelets
(GNPs)
by
weight.
The
0.1,
0.2,
and
0.3
wt.%
specimens
were
carefully
manufactured,
their
mechanical
thermal
conductivity
properties
examined.
tensile
strength
modulus
epoxy/GNPs
enhanced
the
large
surface
area
graphene
nanoplatelets,
causing
crack
deflection
that
created
new
fracture
fronts
friction
because
rough
surface.
However,
compressive
was
gradually
reduced
as
GNP
loading
percentages
increased.
probably
due
to
severe
plastic
yielding
on
epoxy,
leading
catastrophic
axial
splitting
caused
premature
fractures.
Furthermore,
highest
0.1283
W/m-K,
representing
a
20.92%
improvement
over
neat
epoxy
(0.1061
W/m-K)
when
GNPs
added
epoxy.
efficient
heat
propagation
in
electron
movement
through
percolative
paths.
failure
mode
epoxy/GNP
showed
few
deflected
bifurcated
cracks
brittle,
dimple-like
Contrarily,
GNP-added
flexural
buckling
brittle
large-axial
splitting.
considered
damage-tolerant
material.
Carbon,
Год журнала:
2023,
Номер
210, С. 118057 - 118057
Опубликована: Апрель 25, 2023
Carbon-based
hybrid
nanostructures
have
shown
to
be
promising
candidates
as
cost-efficient
and
effective
fillers
for
electromagnetic
interference
shielding
RF
absorption.
In
this
work,
hybrids
of
graphene-augmented
inorganic
(alumina)
nanofibers
(GAIN)
been
incorporated
in
epoxy
resin
fabricate
a
multilayer
structure
with
tunable
Highly
aligned
graphene
augmented
alumina
10
±
2
nm
diameter
were
produced
the
help
hot
wall
one-step
catalyst-free
chemical
vapor
deposition
method
at
1000
°C.
Effective
medium
approximation
has
used
calculate
intrinsic
dielectric
properties
GAIN
nanofibers.
The
highest
loss
tangent
0.4
achieved
5
mm
thick
composite
containing
1
vol%
randomly
oriented
Furthermore,
embedded
an
matrix
examine
effect
fiber
alignment
on
composite.
Based
obtained
data,
superposed
three-layer
fabricated,
offering
absorption
>90%
entire
X-band
peak
−25
dB
∼11
GHz.
Several
designs
based
finite
element
coupled
Monte
Carlo
simulations
proposed
tune
characteristics.
This
work
demonstrates
potential
dual
function
versatile
design
options
area
Coatings,
Год журнала:
2024,
Номер
14(5), С. 529 - 529
Опубликована: Апрель 24, 2024
Bionic
interfaces
have
received
much
attention
owing
to
their
attractive
hydrophobic
and
tribological
potential.
Although
a
great
deal
of
research
has
been
carried
out
on
biomimetic
nanostructures,
the
basic
theory,
experimental
application,
related
techniques
hydrophobicity
as
well
relationship
between
state
lubricants
friction
in
tribology
not
fully
explored.
In
this
review,
based
brief
discussion
theory
hydrophobicity,
role
two-dimensional
bionic
structures
wet
is
introduced,
wetting
mechanism
applications
are
discussed.
Then,
synergistic
effects
mechanisms
weaving
dry/wet
investigated.
addition,
contribution
fields
further
deepens
knowledge
enriches
practical
surface
weaving.
Polymers,
Год журнала:
2024,
Номер
16(11), С. 1483 - 1483
Опубликована: Май 23, 2024
This
paper
presents
an
experimental
investigation
of
nanocomposites
composed
three
ratios
epoxy/graphene
nanoplatelets
(GNPs)
by
weight.
The
0.1,
0.2,
and
0.3
wt.%
specimens
were
carefully
manufactured,
their
mechanical
thermal
conductivity
properties
examined.
tensile
strength
modulus
epoxy/GNPs
enhanced
the
large
surface
area
graphene
nanoplatelets,
causing
crack
deflection
that
created
new
fracture
fronts
friction
because
rough
surface.
However,
compressive
was
gradually
reduced
as
GNP
loading
percentages
increased.
probably
due
to
severe
plastic
yielding
on
epoxy,
leading
catastrophic
axial
splitting
caused
premature
fractures.
Furthermore,
highest
0.1283
W/m-K,
representing
a
20.92%
improvement
over
neat
epoxy
(0.1061
W/m-K)
when
GNPs
added
epoxy.
efficient
heat
propagation
in
electron
movement
through
percolative
paths.
failure
mode
epoxy/GNP
showed
few
deflected
bifurcated
cracks
brittle,
dimple-like
Contrarily,
GNP-added
flexural
buckling
brittle
large-axial
splitting.
considered
damage-tolerant
material.
