Advancing Mechanical Properties of Polypropylene Matrix Composites: Analysis of Diverse Reinforcing Fillers
Polymers for Advanced Technologies,
Год журнала:
2025,
Номер
36(1)
Опубликована: Янв. 1, 2025
ABSTRACT
Currently,
much
research
is
being
conducted
on
increasing
the
strength
of
thermoplastic
polymers
using
various
additives.
Polypropylene
(PP)
widely
used
in
automotive
industry
and
electrical
equipment.
In
this
paper,
reinforcing
particles/fibers,
including
calcium
carbonate,
CaCO
3
,
(at
20%,
25%,
30%
weight
percentages),
20%
talc,
barite
particles,
as
well
glass
fibers
(GFs)
(with
varying
L/D
ratios,
200,
250,
300)
were
integrated.
First,
PP
additives
mixed
homogeneously
by
an
extrusion
process,
then
test
samples
made
high‐pressure
injection
extruded
product
into
mold.
Various
tests,
tensile,
impact,
melt
flow
index
(MFI)
to
investigate
effect
properties
composites
produced
plastic
molding.
SEM
analysis
was
examine
fracture
cross‐section
distribution
Results
revealed
significant
outcomes
across
multiple
tests:
addition
particles
led
a
reduction
yield
strain
while
creating
notable
variations
strength.
Charpy
impact
tests
demonstrated
varied
energy
absorption,
with
highest
observed
GF
sample
ratio
350).
Furthermore,
incorporation
increased
heat
deflection
temperature,
exhibiting
value.
Additionally,
reinforcements
effectively
mitigated
shrinkage,
reductions
noted
containing
talc
GF.
The
displayed
shrinkage
rate
19.1%.
This
figure
significantly
decreased
1.42%
0.26%
for
reinforced
[L/D
=
350].
introduction
GFs
resulted
MFI,
other
exhibited
minimal
impact.
Язык: Английский
Effects of Surface‐Treated Nanomagnesia on the Electro‐Mechanical Properties of Polypropylene/Ethylene‐Propylene‐Diene Monomer Blends
Polymers for Advanced Technologies,
Год журнала:
2025,
Номер
36(2)
Опубликована: Фев. 1, 2025
ABSTRACT
With
a
global
shift
toward
energy
sustainability,
power
cable
insulation
materials
vital
for
modern
transmission
have
seen
needs
improvements.
In
this
regard,
thermoplastic
polypropylene
(PP)
blends
offer
exceptional
thermal
and
electrical
properties
over
conventional
materials.
Notably,
nanostructuration
of
PP
can
further
enhance
the
blends,
but
underlying
physics
governing
nanostructured
has
yet
to
be
systematically
explored.
The
current
work
therefore
evaluates
effects
surface‐treated
nanomagnesia
(MgO)
on
electro‐mechanical
blended
with
10
wt%,
20
30
wt%
ethylene‐propylene‐diene
monomer
(EPDM).
results
show
that
blending
EPDM
exhibits
significantly
improved
mechanical
properties,
elongation‐at‐break
increasing
beyond
400%,
albeit
breakdown
strength
deteriorates
by
34%.
Significantly,
adding
MgO
PP/EPDM
improves
up
14%
without
compromising
mechanisms
PP/EPDM/MgO
nanocomposites
blend
counterparts
are
explained
through
changes
in
materials'
structures.
These
findings
provide
fundamental
insights
into
structure–property
relationship
crucial
development
PP‐based
insulation.
Язык: Английский