Polymer Engineering and Science,
Год журнала:
2024,
Номер
64(4), С. 1482 - 1493
Опубликована: Янв. 13, 2024
Abstract
In
the
development
of
National
Aeronautics
and
Space
Administration
(NASA)'s
Unmanned
Aerial
Vehicles
(UAVs),
lightweight
durable
materials
play
a
crucial
role
for
extended
high‐altitude
flights.
Nanoparticle‐reinforced
polymer
composites
meet
these
requirements,
exhibiting
resistance
to
environmental
degradation.
Despite
their
potential,
outstanding
specific
strength,
corrosion
resistance,
dimensional
stability
at
elevated
temperatures
graphene–epoxy
nanocomposites
have
not
been
fully
realized
due
inadequate
dispersion
spatial
orientation
within
epoxy
matrices.
Our
recent
research
has
introduced
mathematical
framework
aimed
optimizing
alignment
parameters
graphene
nanoplatelets
(GNPs)
Fe
3
O
4
‐attached
GNP
under
weak
DC
magnetic
field.
Subsequently,
reinforced
with
aligned
–GNP
nanoparticles
were
fabricated
using
optimized
parameters,
was
characterized
various
techniques.
The
current
study
examines
influence
comparative
impact
weight
percentage
(wt%)
loading
both
on
mechanical
properties,
including
tensile
compressive
along
failure
mechanisms.
It
observed
that
enhance
properties
nanocomposites,
particularly
notable
improvements
from
–GNP.
Young's
modulus
increased
by
17%,
while
contributed
significantly
31%
enhancement
in
Young
modulus.
Highlights
Epoxy
featuring
well‐dispersed
nanoparticles.
Proper
nanocomposite
achieved.
Mechanical
improved
incorporation.
exhibits
advanced
potential
engineering
applications.
Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 2, 2025
The
physical
properties
of
nanocomposites
may
be
improved
by
addition
low
content
carbon
nanotubes
(CNTs).
In
contrast,
for
higher
concentrations
CNTs,
the
degraded
owing
to
agglomeration.
recent
years,
due
increasing
applications
many
efforts
have
been
performed
overcome
agglomerates,
achieving
real
potential
CNTs
in
improving
performance
nanocomposites.
To
this
end,
review
paper,
impact
agglomeration
on
various
CNTs/polymer
was
investigated.
Besides,
present
work
provides
a
effective
factors
that
lead
conventional
and
novel
strategies
adopted
control
phenomenon
are
also
presented.
findings
revealed
dense
agglomerates
negatively
affect
all
It
observed
elastic
modulus
tensile
strength
epoxy-based
can
around
25
35%
when
weight
fraction
is
increased
from
0.5
1.0
wt.%.
case
fracture
toughness,
it
reported
adding
0.1,
0.2,
0.3
0.4
wt.%
an
nanocomposites,
toughness
enhances
17,
24,
30,
4%,
respectively.
addition,
50%
reduction
thermal
conductivity
nanocomposite
happened
formation
concluded
presence
coefficient
friction
polymer-based
increases
0.027
0.034.
slight
improve
electrical
certain
extent.
some
expensive
proposed
adversely
structure,
not
so
prevent
occurrence
agglomeration,
or
applicable
high-volume
production
However,
implementation
such
as
3D
porous
structures
could
challenge
significantly.
Nanoscale,
Год журнала:
2023,
Номер
16(4), С. 1539 - 1576
Опубликована: Дек. 1, 2023
The
development
of
advanced
cathode
materials
for
zinc-ion
batteries
(ZIBs)
is
a
critical
step
in
building
large-scale
green
energy
conversion
and
storage
systems
the
future.
Manganese
dioxide
one
most
well-studied
due
to
its
wide
range
crystal
forms,
cost-effectiveness,
well-established
synthesis
processes.
This
review
describes
recent
research
progress
manganese
dioxide-based
ZIBs,
reaction
mechanism,
electrochemical
performance,
challenges
ZIBs
are
systematically
introduced.
Optimization
strategies
high-performance
with
different
nanostructures,
morphologies,
compositions
discussed.
Finally,
current
future
directions
cathodes
envisaged.
Nanoscale,
Год журнала:
2024,
Номер
16(28), С. 13247 - 13299
Опубликована: Янв. 1, 2024
Thanks
to
their
intrinsic
properties,
multifunctionality
and
unique
geometrical
features,
two-dimensional
nanomaterials
have
been
used
widely
as
reinforcements
in
polymer
nanocomposites.
The
effective
mechanical
reinforcement
of
polymers
is,
however,
a
multifaceted
problem
it
depends
not
only
on
the
properties
fillers
matrix,
but
also
upon
number
other
important
parameters.
These
parameters
include
processing
method,
interfacial
aspect
ratio,
defects,
orientation,
agglomeration
volume
fraction
fillers.
In
this
review,
we
summarize
recent
advances
nanocomposites
from
nanofillers
with
an
emphasis
mechanisms
reinforcement.
Model,
bulk
hybrid
are
reviewed
comprehensively.
use
Raman
photoluminescence
spectroscopies
is
examined
light
distinctive
information
they
can
yield
stress
transfer
at
interfaces.
It
shown
that
very
diverse
family
2D
includes
materials
attribute
distrinctive
features
polymeric
focus
both
graphene
some
most
beyond
graphene,
including
boron
nitride,
molybdenum
disulphide,
transition
metal
dichalcogenides,
MXenes
black
phosphorous.
first
part
review
evaluate
nanoplatelets
"model"
Next
examine
how
performance
these
be
optimised
Finally,
combinations
or
dimensions
assessed
thoroughly,
such
lead
additive
even
synergistic
effects.
Existing
unsolved
problems
future
perspectives
discussed.
Recent
studies
focus
on
enhancing
the
mechanical
features
of
natural
fiber
composites
to
replace
synthetic
fibers
that
are
highly
useful
in
building,
automotive,
and
packing
industries.
The
novelty
work
is
woven
areca
sheath
(ASF)
with
different
fraction
epoxy
has
been
fabricated
tested
for
its
tribological
responses
three-body
abrasion
wear
testing
machines
along
features.
impact
various
examined.
study
also
revolves
around
development
validation
a
machine
learning
predictive
model
using
random
forest
(RF)
algorithm,
aimed
at
forecasting
two
critical
performance
parameters:
specific
rate
(SWR)
coefficient
friction
(COF).
void
observed
vary
between
0.261
3.8%
as
incremented.
hardness
mat
rises
progressively
from
40.23
84.26
HRB.
A
fair
ascent
tensile
strength
modulus
observed.
Even
though
short
descent
flexural
seen
0
12
wt
%
composite
specimens,
they
incrementally
raised
finest
values
52.84
2860
MPa,
respectively,
pertinent
48
fiber-loaded
specimen.
progressive
rise
ILSS
perceptible.
behavior
specimens
reported.
worn
surface
morphology
studied
understand
interface
ASF
matrix.
RF
exhibited
outstanding
prowess,
evidenced
by
high
R-squared
coupled
low
mean-square
error
mean
absolute
metrics.
Rigorous
statistical
employing
paired
t
tests
confirmed
model's
suitability,
revealing
no
significant
disparities
predicted
actual
both
SWR
COF.
Polymers,
Год журнала:
2024,
Номер
16(14), С. 2054 - 2054
Опубликована: Июль 18, 2024
Epoxy
resins
were
reinforced
with
different
ZnO
nanofillers
(commercial
nanoparticles
(ZnO
NPs),
recycled
and
functionalized
NPs)
in
order
to
obtain
ZnO-epoxy
composites
suitable
mechanical
properties,
high
adhesion
strength,
good
resistance
corrosion.
The
final
properties
of
depend
on
several
factors,
such
as
the
type
contents
nanofillers,
epoxy
resin
type,
curing
agent,
preparation
methods.
This
paper
aims
review
methods,
anti-corrosion
performance,
applications
composites.
epoxy-ZnO
are
demonstrated
be
valuable
materials
for
a
wide
range
applications,
including
development
UV-protective
coatings,
adhesives
chemical
industry,
or
use
building
electronics.
