Heliyon,
Journal Year:
2025,
Volume and Issue:
11(1), P. e41700 - e41700
Published: Jan. 1, 2025
Polymers
have
been
ruling
the
packaging
industry
for
decades
due
to
their
versatility,
easy
manufacturability,
and
low
cost.
The
overuse
of
non-biodegradable
plastics
in
food
has
become
a
serious
environmental
concern.
Multi-walled
carbon
nanotube
(MWCNT)
reinforced
nanocomposites
exceptional
electrical,
thermal,
mechanical
properties.
However,
major
difficulty
synthesis
CNT-reinforced
is
agglomeration,
which
results
poor
dispersion
less
interfacial
bonding
between
reinforcements
matrix,
limiting
its
advantages.
Although
acid
treatment
effective,
strong
acids,
timing,
sonication
power
can
lead
damage.
This
study
introduces
novel
approach
enhance
PVA
nanocomposite
films'
mechanical,
optical,
antibacterial
performance
using
polydopamine-coated
CNTs,
are
more
effective
than
pristine
or
acid-treated
making
them
promising
applications.
Pristine
CNT
polyvinyl
alcohol
(PVA)
films
were
fabricated
with
varying
concentrations
CNTs
(0
wt%,
0.5
1.0
1.5
2.0
wt%).
These
samples
underwent
optical
characterization
optimization
CNTs'
concentration
matrix.
Then
optimized
amount
was
used
fabricate
PVA/CNT
films.
characteristics
resultant
investigated.
It
found
that
polydopamine
coating
on
improved
properties
as
compared
those
pure
PVA,
PVA/pristine
CNT,
PVA/acid-treated
Moreover,
film
also
demonstrated
good
activity
against
Staphylococcus
aureus
(S.
aureus)
Escherichia
coli
(E.
coli)
comparison
PVA.
Polymer Testing,
Journal Year:
2023,
Volume and Issue:
124, P. 108066 - 108066
Published: May 15, 2023
The
use
of
biodegradable
polymers
to
mitigate
the
environmental
pollution
is
one
hot
topics
research
in
recent
years.
current
work
presents
graphene
oxide
(GO)
nanoparticles
functionalized
with
two
types
alkylamines
(decylamine
(DA)
and
octadecylamine
(ODA))
synthesized
at
different
temperatures;
25
°C
(GODA1
GOODA1)
80
(GODA2
GOODA2),
which
were
used
as
fillers
prepare
PLA
nanocomposites
their
barrier,
mechanical,
thermal
properties
studied.
elemental
analysis
showed
2
wt%
4
nitrogen
content
for
GO,
confirming
presence
alkyl
chains
its
structure.
reactions
carried
out
GOODA2)
are
ones
that
highest
mass
yields,
registering
a
7%
50%
increase
total
mass,
respectively.
These
results
supported
by
X-ray
diffraction
(XRD),
FT-IR
spectroscopy
thermogravimetric
Analysis
(TGA)
analyses.
optical
microscopy
images
modified
GO
has
higher
affinity
than
matrix,
observing
good
dispersion
low
loads
(0.2
wt%),
an
increasing
tendency
form
agglomerates
loads.
Furthermore,
elastic
modulus
all
decreasing
trend,
mainly
attributed
formation
decrease
crystallinity
composites.
oxygen
permeability
progressively
decreases
nanoparticle
load,
prepared
GODA2
GOODA2
presented
best
results,
28.6%
30.4%
loads,
On
other
hand,
water
vapor
decreased
36.0%
50.2%,
0.2
GOODA2,
However,
amount
filler
no
significant
improvements
was
detected.
shows
addition
improves
barrier
properties,
composites
could
be
food
packaging.
Polymer Composites,
Journal Year:
2024,
Volume and Issue:
45(7), P. 6287 - 6304
Published: Feb. 10, 2024
Abstract
Two‐dimensional
hexagonal
boron
nitride
(hBN)
based
nanocomposites
exhibit
excellent
mechanical
and
thermal
properties
for
various
electronics,
automotive,
aerospace
applications.
The
present
work
gives
a
novel
approach
to
fabricating
nitride/epoxy
using
isopropanol
dimethyl
ketone
as
dispersants
in
two
different
routes
predict
characteristics
employing
deep
learning
machine
models.
Nanocomposites
were
fabricated
by
casting
techniques
with
varying
concentrations
of
hBN,
spanning
from
0.25
1
wt%,
utilizing
dispersing
solvents.
analyzed
behavior,
highlighting
notable
improvement
the
at
0.5
wt%
dispersed
hBN.
It
showcased
61%
tensile
strength,
38.41%
increase
flexural
35.80%
modulus
respectively
compared
pristine
epoxy.
Halpin
Tsai
analytical
model
showed
agreement
elastic
calculated
experimentally.
fractured
SEM
micrograph
supported
improved
dispersion
hBN
nanocomposite.
Thermal
stability
hBN/epoxy
nanocomposite
revealed
an
8°C
50%
degradation
Linear
regression,
random
forest
support
vector
neural
network
(DNN)
employed
values.
DNN
proved
better
results
showcasing
low
prediction
loss
high
R
2
values
(0.99468–0.99966).
Highlights
dispersants.
0.5%
loading
exhibited
characteristics.
was
evaluating
theoretical
modulus.
Improved
filler
optimized
combination.
Deep
higher
value
lower
loss.
Deleted Journal,
Journal Year:
2024,
Volume and Issue:
6(11)
Published: Oct. 25, 2024
This
study
investigates
the
enhancement
of
mechanical
and
thermal
properties
carbon
fiber
reinforced
epoxy
composites
by
incorporating
zinc
oxide
(ZnO)
nanofillers.
The
were
developed
adding
3–15
g
ZnO
nanoparticles
into
matrix
evaluated
through
experimental
testing.
results
showed
significant
improvements
in
performance,
with
maximum
tensile
strength
112.49
MPa
flexural
114.82
at
15
concentration.
SEM
analysis
revealed
a
reduction
void
content
improved
fiber-matrix
adhesion,
enhancing
load
transfer.
Thermal
conductivity
is
13.47
W/mK,
while
coefficient
linear
expansion
9.29
×
10−5/°C,
indicating
superior
stability.
TGA
demonstrated
shift
decomposition
temperature
from
310
to
375
°C,
confirming
enhanced
These
highlight
positive
influence
nanofillers
on
both
composites,
making
them
more
suitable
for
advanced
structural
applications.
Journal of Composite Materials,
Journal Year:
2024,
Volume and Issue:
58(7), P. 911 - 921
Published: Feb. 1, 2024
The
pairs
of
nanofillers
prepared
by
graphene
nanoplatelets
(GNPs)
and
multi-walled
carbon
nanotubes
(MWCNTs)
were
added
to
the
epoxy
matrix
in
various
ratios
produce
hybrid
nanocomposites.
effects
presence
these
at
0.1–0.4
wt.%
on
mechanical
thermal
properties
tested.
Likewise,
fiber
reinforced
MWCNT/GNP
modified
nanocomposite
laminates
also
manufactured
dispersion
nanofiller
polymer
was
evaluated
Scanning
Electron
Microscopy
(SEM).
It
determined
that
composite
consisting
a
MWCNT:GNP
ratio
1:3
0.3
showed
best
with
tensile
strength
75.1
MPa.
GNPs
MWCNT
epoxy/carbon
influenced
positively
strain
but
negatively
elastic
modulus.
Glass
transition
temperature
increased
from
87.25°C
114.67°C
for
1:1
(0.3
wt.%).
