Engineering Reports,
Год журнала:
2025,
Номер
7(4)
Опубликована: Апрель 1, 2025
ABSTRACT
Plastic
pollution
has
emerged
as
a
significant
global
issue,
highlighting
the
need
for
sustainable
alternatives
and
effective
recycling
methods.
Concurrently,
cactus
plant
offers
promising
source
of
bio‐based
materials,
particularly
due
to
its
resilience
in
harsh
environments.
This
study
focused
on
performance
characterization
powder
mixed
with
recycled
high‐density
polyethylene
(rHDPE)
pellets
filament
production
suitable
3D
printing
using
Fused
Filament
Fabrication
method.
The
physical
properties
both
rHDPE
were
investigated,
composite
filaments
prepared
from
5%,
10%,
15%
alongside
rHDPE.
Performance
evaluation
was
conducted
Universal
Testing
Machine.
Additionally,
chemical
composition
analyzed,
particle
size
distribution
determined.
combination
HDPE
yielded
viable
filament,
though
increasing
proportions
reduced
extrusion
properties.
tensile
strength
pure
measured
at
16.27
MPa,
while
strengths
5%
10%
composites
14.97
10.74
respectively.
For
printed
specimens,
recorded
13.04
MPa
8.28
composite.
flexural
results
showed
21.77
15.64
These
findings
suggest
that
can
serve
valuable
additive
developing
materials.
Polymers,
Год журнала:
2024,
Номер
16(13), С. 1769 - 1769
Опубликована: Июнь 22, 2024
Polymer
sustainability
is
a
pressing
concern
in
today’s
world
driven
by
the
increasing
demand
for
environmentally
friendly
materials.
This
review
paper
provides
comprehensive
overview
of
eco-friendly
approaches
towards
enhancing
polymers.
It
synthesized
recent
research
and
developments
various
areas
such
as
green
polymer
synthesis
methods,
biodegradable
polymers,
recycling
technologies,
emerging
sustainable
alternatives.
The
environmental
impact
traditional
production
processes
importance
adopting
greener
alternatives
were
critically
examined.
delved
into
advancements
technologies
like
mechanical,
chemical,
biological
aimed
at
minimizing
plastic
waste
promoting
circular
economy.
innovative
upcycling,
hybrid
methods
etc.,
which
offer
promising
solutions
addressing
pollution
achieving
long-term
goals
also
analyzed.
Finally,
discussed
challenges
future
prospects
sustainability,
emphasizing
need
researchers
concerted
efforts
from
scientists
across
industries
academia
to
drive
meaningful
change
more
future.
Applied Sciences,
Год журнала:
2024,
Номер
14(21), С. 9919 - 9919
Опубликована: Окт. 30, 2024
In
the
era
of
Industry
4.0,
3D
printing,
or
additive
manufacturing
(AM),
has
revolutionized
product
design
and
across
various
sectors.
This
review
explores
evolution
printing
technology
its
impact
on
industrial
innovation,
highlighting
advancements
in
aeronautics,
automotive
industry,
biomedicine.
Various
AM
processes,
such
as
binder
jetting,
direct
energy
deposition,
powder
bed
fusion,
materials
like
metals,
polymers,
ceramics,
composites,
are
discussed.
Innovations
high-speed
sintering,
continuous
liquid
interface
production,
bioprinting
demonstrate
ongoing
advancements.
The
potential
personalized
medical
applications
is
emphasized
due
to
flexibility
geometry
materials.
Despite
progress,
challenges
standardization,
material
quality,
recycling,
sustainability,
economic
feasibility
hinder
widespread
adoption.
Overcoming
these
crucial
for
optimizing
technologies,
ensuring
high-quality,
efficient,
affordable
production.
also
addresses
future
prospects
4D
5D
technologies
their
industries.
overview
underscores
printing’s
role
shaping
within
context
5.0,
emphasizing
human–machine
collaboration
sustainability.
Journal of Composites Science,
Год журнала:
2024,
Номер
8(6), С. 215 - 215
Опубликована: Июнь 7, 2024
The
development
of
efficient
waste
valorization
strategies
has
emerged
as
an
important
field
in
the
overall
efforts
for
alignment
with
environmental
goals
that
have
been
set
by
European
Union
(EU)
Green
Deal
regarding
sustainable
circular
economy
models.
Additive
manufacturing
a
method
secondary
life
product
main
advantages
it
being
form
net-zero
production
and
having
ability
to
successfully
transport
complex
design
actual
products
finding
applications
industry
rapid
prototyping
or
tailored
products.
insertion
eco-friendly
materials
these
processes
can
lead
significant
reduction
material
footprints
lower
energy
demands
process,
helping
achieve
Sustainable
Development
Goal
12
(SDG12)
EU
responsible
consumption.
aim
this
comprehensive
review
is
state
existing
progress
incorporation
polymeric
composite
additive
(AM)
identify
possible
gaps
further
research.
In
context,
presentation
reacquired
coming
from
urban
industrial
are
used
produce
composites
made.
Then,
assessment
printability
mechanical
response
constructed
made,
taking
into
consideration
some
key
thermal,
rheological
properties
(e.g.,
viscosity,
melting
degradation
temperature,
tensile
impact
strength).
Finally,
cycle
analysis
results
presented
footprint
during
waste-to-feedstock
processes.
A
lack
scientific
research
was
observed,
manifestation
novel
evaluation
techniques
such
dynamic
testing.
Assessing
vital
evaluating
whether
types
adequate
upscaling
use
real
applications.
Journal of Composites Science,
Год журнала:
2024,
Номер
8(7), С. 273 - 273
Опубликована: Июль 15, 2024
The
incorporation
of
fiber
reinforcements
into
polymer
matrices
has
emerged
as
an
effective
strategy
to
enhance
the
mechanical
properties
composites.
This
study
investigated
tensile
and
fracture
behavior
3D-printed
polylactic
acid
(PLA)
composites
reinforced
with
chopped
carbon
fibers
(CCFs)
through
experimental
characterization
finite
element
analysis
(FEA).
Composite
samples
varying
CCF
orientations
(0°,
0°/90°,
+45°/−45°,
0°/+45°/−45°/90°)
were
fabricated
via
fused
filament
fabrication
(FFF)
subjected
single-edge
notched
bend
(SENB)
tests.
results
revealed
a
significant
improvement
in
strength,
elastic
modulus,
toughness
compared
unreinforced
PLA.
0°/+45°/90°
orientation
exhibited
3.6%
increase
while
+45°/−45°
displayed
29.9%
enhancement
modulus
(259.12
MPa)
relative
neat
PLA
(199.34
MPa√m).
An
inverse
correlation
between
strength
was
observed,
attributed
mechanisms
such
crack
deflection,
bridging,
pull-out
facilitated
by
multi-directional
orientations.
FEA
simulations
incorporating
transversely
isotropic
material
model
J-integral
approach
conducted
using
Abaqus,
accurately
predicting
trends
maximum
discrepancy
8%
data.
Fractographic
elucidated
strengthening
mechanisms,
highlighting
potential
tailoring
optimize
performance
for
structural
applications.
Polymers,
Год журнала:
2024,
Номер
16(12), С. 1622 - 1622
Опубликована: Июнь 7, 2024
Additive
manufacturing
(AM)
has
arisen
as
a
transformative
technology
for
complex
geometries
with
enhanced
mechanical
properties,
particularly
in
the
realm
of
continuous
fiber-reinforced
polymer
composites
(CFRPCs).
Among
various
AM
techniques,
fused
deposition
modeling
(FDM)
stands
out
promising
method
fabrication
CFRPCs
due
to
its
versatility,
ease
use,
flexibility,
and
cost-effectiveness.
Several
research
papers
on
CFRPs
via
FDM
were
summarized
therefore
this
review
paper
provides
critical
examination
process-printing
parameters
influencing
process,
focus
their
impact
properties.
This
covers
details
factors
such
fiber
orientation,
layer
thickness,
nozzle
diameter,
volume
fraction,
printing
temperature,
infill
design,
extracted
from
existing
literature.
Through
visual
representation
process
(printing
material)
properties
(mechanical,
physical,
thermal),
aims
separate
optimal
processing
that
have
been
inferred
studies.
Furthermore,
analysis
critically
evaluates
current
state-of-the-art
research,
highlighting
advancements,
applications,
filament
production
methods,
challenges,
opportunities
further
development
field.
In
comparison
short
fibers,
filaments
can
render
better
strength;
however,
delamination
issues
persist.
Various
affect
differently,
resulting
several
limitations
need
be
addressed.
Signifying
relationship
between
is
vital
optimizing
CFRPC
FDM,
enabling
realization
lightweight,
high-strength
components
industrial
applications.
Polymers,
Год журнала:
2024,
Номер
16(15), С. 2135 - 2135
Опубликована: Июль 26, 2024
Polylactic
acid
(PLA)
composite
serve
as
widely
used
filaments
in
fused
deposition
modeling
(FDM)
3D
printing.
This
study
investigates
the
enhancement
of
PLA
composite’s
comprehensive
mechanical
properties
and
thermal
stability
through
incorporation
carbon
fiber
(CF).
The
influence
FDM
process
parameters
on
is
also
analyzed.
Results
show
that
adding
5
wt.%
CF
significantly
enhances
stiffness
composite.
order
printing
factors
affecting
tensile
strength
product
follows:
layer
thickness,
bottom
plate
temperature,
speed,
nozzle
temperature.
Finally,
optimal
achieved
under
specific
conditions:
0.1
mm
60
°C
40
mm/s
215
