Processes,
Год журнала:
2024,
Номер
12(4), С. 760 - 760
Опубликована: Апрель 9, 2024
Sustainable
manufacturing
practices
are
becoming
increasingly
necessary
due
to
the
growing
concerns
regarding
climate
change
and
resource
scarcity.
Consequently,
material
recycling
technologies
have
gradually
become
preferred
over
conventional
processes.
This
study
aimed
recycle
waste
polylactic
acid
(PLA)
from
household-disposed
cups
lids
create
3D-printed
parts
promote
sustainable
practices.
To
achieve
this,
current
utilised
virgin
post-consumer
PLA
(PC-PLA)
(sourced
household
waste)
blends.
The
PC-PLA
wastes
were
shredded
sorted
by
size
with
aid
of
a
washing
step,
resulting
in
filament
1.70
±
0.5
mm
diameter
without
fragmentation
or
dissolution.
A
50:50
wt.%
blend
(vPLA)
was
selected
as
standard
percentage
based
on
previous
research
conservation
goals.
investigated
impact
three
3D
printing
parameters
(layer
height
(LH),
infill
density
(I),
nozzle
temperature
(NT))
quality
using
three-level
L9
Taguchi
orthogonal
array.
findings
revealed
that
blending
vPLA
led
significant
improvements
tensile,
flexural,
strengths
18.40%,
8%,
9.15%,
respectively,
compared
those
recycled
(rPLA).
conclusion
supported
investigation
fracture
surface
area,
which
fractographic
features
associated
parameters,
such
plastic
deformation
interfilament
debonding.
An
ANOVA
analysis
positive
influence
greater
layer
high
mechanical
properties.
Subsequently,
optimal
(LH:
0.3
mm,
I:
100%,
NT:
215
°C)
determined
S/N
ratio,
confirmation
test
optimum
exhibited
strong
correlation
statistically
predicted
outcomes.
Finally,
used
fabricate
100%
parts,
demonstrating
their
potential
for
low-strength
applications.
suggest
employing
blended
filaments
fabricating
components
presents
an
effective
means
promoting
within
closed-loop
system
achieving
circular
economy.
Polymers,
Год журнала:
2024,
Номер
16(8), С. 1104 - 1104
Опубликована: Апрель 16, 2024
The
increased
use
of
plastics
in
industrial
and
agricultural
applications
has
led
to
high
levels
pollution
worldwide
is
a
significant
challenge.
To
address
this
plastic
pollution,
conventional
methods
such
as
landfills
incineration
are
used,
leading
further
challenges
the
generation
greenhouse
gas
emissions.
Therefore,
increasing
interest
been
directed
identifying
alternative
dispose
waste
from
agriculture.
novelty
current
research
arose
lack
critical
reviews
on
how
3-Dimensional
(3D)
printing
was
adopted
for
recycling
plastics,
its
application
production
specific
benefits,
disadvantages,
limitations
plastics.
review
paper
offers
novel
insights
regarding
3D
including
Fused
Particle
Fabrication
(FPF),
Hot
Melt
Extrusion
(HME),
Deposition
Modelling
(FDM)
make
filaments
However,
were
local
setups
where
only
small
quantities
raw
materials
considered.
Data
collected
using
systematic
involving
39
studies.
Findings
showed
that
Polylactic
Acid
(PLA),
Acrylonitrile
Butadiene
Styrene
(ABS),
Polyethylene
Terephthalate
(PET),
High-Density
(HDPE),
which
found
have
properties
comparable
those
virgin
plastic,
suggesting
viability
managing
pollution.
also
associated
with
methods;
3D-printed
deteriorated
rapidly
under
Ultraviolet
(UV)
light
non-biodegradable,
posing
risks
UV
stabilization
helps
reduce
deterioration,
thus
longevity
reducing
disposal.
Future
directions
emphasize
deterioration
their
addition
stability.
Materials,
Год журнала:
2024,
Номер
17(12), С. 2915 - 2915
Опубликована: Июнь 14, 2024
The
integration
of
recycled
polymers
into
additive
manufacturing
(AM)
processes
offers
a
promising
opportunity
for
advancing
sustainability
within
the
industry.
This
review
paper
summarizes
existing
research
and
developments
related
to
use
materials
in
AM,
focusing
on
distinct
polymers,
such
as
polylactic
acid
(PLA),
polyethylene
terephthalate
(PET),
acrylonitrile
butadiene
styrene
(ABS),
among
others.
Key
topics
explored
include
availability
filaments
market,
challenges
associated
with
material
variability
traceability,
efforts
toward
establishing
ethical
product
standards
characterization
methodologies.
Regulatory
considerations
development
by
organizations
ASTM
ISO
are
discussed,
along
recommendations
future
advancements
improving
filament
recycling
achieving
net-zero
emissions
AM
processes.
collective
outlined
this
underscore
potential
foster
more
sustainable
environmentally
friendly
Journal of Applied Polymer Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 24, 2025
ABSTRACT
The
rapid
increase
in
waste
electrical
and
electronic
equipment
(WEEE)
poses
a
significant
environmental
challenge.
To
address
this
issue,
initiatives
promoting
circular
economy
principles
have
emerged,
such
as
utilizing
recycled
acrylonitrile
butadiene
styrene
(ABSr)
high‐impact
polystyrene
(HIPSr)
from
WEEE.
This
study
evaluated
the
properties
of
virgin
ABS
(ABSv)/ABSr
ABSv/HIPSr
blends,
with
ABSr
HIPSr
obtained
TV
housing
blend
samples
were
prepared
using
filament
extrusion,
followed
by
either
compression
molding
or
3D
printing.
ABSv
exhibited
stronger
shear‐thinning
behavior
than
at
low
shear
rates,
indicating
higher
content
rubber.
viscosities
blends
increased
rates
approximated
those
ABSv,
ABSr,
high
rates.
Overall,
compression‐molded
demonstrated
superior
impact
strength
compared
to
their
3D–printed
counterparts.
Polymer Composites,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 25, 2025
Abstract
Fused
filament
fabrication
(FFF)
technology,
recognized
as
a
leading
3D
printing
method
for
the
production
of
continuous
carbon
fiber
reinforced
thermoplastic
polymer
(CCFRTP)
components,
has
garnered
significant
attention
due
to
its
design
flexibility,
independence
from
molds,
and
capability
rapid
prototyping
complex
structures.
This
paper
presents
comprehensive
analysis
review
challenges
associated
with
enhancing
mechanical
properties
stemming
interfacial
bonding
issues
pore
defects
in
3D‐printed
CCFRTP
parts.
Specifically,
this
study
thoroughly
examines
modification
techniques
pertinent
two
critical
constituents
materials:
resin
matrix
reinforcement.
It
also
explores
advancements
FFF
equipment
specifically
designed
alongside
current
developments
related
impregnation
processes.
Furthermore,
work
introduces
an
evolution
continuum
path
planning
grounded
principles
structural
lightweight
while
applying
topology
optimization
create
anisotropic
The
influence
various
process
parameters
on
is
analyzed
systematically;
additionally,
processing
strategies
that
incorporate
auxiliary
reinforcement
techniques—such
thermopressure,
negative
pressure,
laser
application,
magnetic
fields,
microwave
energy,
infrared
radiation—are
emphasized.
behavior
meticulously
tracked
throughout
study,
corresponding
failure
mechanisms
are
scrutinized
through
recent
characterization
methods
aimed
at
visualizing
void
defects.
We
critically
assess
existing
technological
impede
CCFRTPs
propose
potential
future
research
directions
intended
inspire
further
exploration
within
promising
field.
Highlights
Optimizing
interface
hinges
material
matching
synergistic
CCF
mods.
CF
continuity
anisotropy
demand
refined
print/impregnation
algorithm.
Stress‐guided
topo
unveils
innovative
potential.
Optimized
print
ancillary
processes
facilitate
enhanced
performance.
ensures
reliable
defect
assessment.
Journal of Thermoplastic Composite Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 28, 2025
The
increasing
demand
for
multifunctional
materials
in
additive
manufacturing,
especially
biomedical
applications,
makes
it
necessary
to
improve
commonly
used
polymers,
such
as
PLA,
terms
of
thermal,
morphological,
and
printing
quality.
In
this
context,
adding
nano-additives
PLA
polymer,
which
stands
out
due
its
biocompatible
structure,
optimizing
the
temperature
production
process
are
among
critical
strategies
that
directly
affect
final
properties
material.
This
study
explores
influence
TiO
2
varying
print
temperatures
on
matrix
composites
produced
via
fused
filament
fabrication
(FFF).
Mechanical
(tensile
bending),
thermal
(DSC),
flow
(MFI),
morphological
(SEM,
surface
roughness),
printability
characteristics
were
evaluated.
Print
ranged
from
180°C
240°C.
addition
improved
stability
increased
crystallinity
(from
6.4%
17.4%).
Flowability
also
by
9%–29%,
depending
temperature.
Although
caused
some
decrease
mechanical
properties,
changing
led
improvements
performance.
suggests
can
partially
compensate
loss
strength
nano-additives.
Also,
quality
enhanced.
These
findings
suggest
while
additives
may
slightly
compromise
performance,
they
notably
enhance
other
composites,
making
them
suitable
medical
uses,
require
a
certain
multifunctionality.
Rapid Prototyping Journal,
Год журнала:
2024,
Номер
30(4), С. 760 - 769
Опубликована: Март 23, 2024
Purpose
This
study
aims
to
present
an
experimental
approach
develop
a
high-strength
3D-printed
recycled
polymer
composite
reinforced
with
continuous
metal
fiber.
Design/methodology/approach
The
fiber
was
3D
printed
using
and
virgin
acrylonitrile
butadiene
styrene-blended
filament
(RABS-B)
in
the
ratio
of
60:40
postused
brass
wire
(CBW).
printing
done
in-nozzle
impregnation
technique
FFF
printer
installed
self-modified
nozzle.
tensile
single-edge
notch
bend
(SENB)
test
samples
are
fabricated
evaluate
fracture
toughness
properties
compared
VABS
RABS-B
samples.
Findings
SENB
tests
revealed
that
RABS-B/CBW
0.7
mm
layer
spacing
exhibited
notable
improvement
Young’s
modulus,
ultimate
strength,
elongation
at
maximum
load
by
51.47%,
18.67%
107.3%
22.75%
VABS,
respectively.
Social
implications
novel
integrating
CBW
thermoplastic
represents
significant
leap
forward
material
science,
delivering
superior
strength
unlocking
potential
for
advanced,
sustainable
composites
demanding
engineering
fields.
Originality/value
Limited
research
has
been
conducted
on
fiber-reinforced
composites.
Adopting
this
method
holds
create
durable
suitable
applications,
thereby
diminishing
dependence
materials.
Polymers,
Год журнала:
2024,
Номер
16(16), С. 2324 - 2324
Опубликована: Авг. 16, 2024
Additive
manufacturing
presents
promising
potential
as
a
sustainable
processing
technology,
notably
through
integrating
post-consumer
recycled
polymers
into
production.
This
study
investigated
the
recycling
of
high-density
polyethylene
(rHDPE)
3D
printing
filament,
achieved
by
following
optimal
extrusion
parameters:
180
°C
temperature,
7
rpm
speed,
and
10%
glass
powder
addition.
The
properties
developed
rHDPE
filament
were
compared
with
those
commonly
used
FDM
filaments
such
acrylonitrile
butadiene
styrene
(ABS)
polylactic
acid
(PLA)
to
benchmark
performance
against
well-established
materials
in
industry,
providing
practical
perspective
for
users.
resulting
boasted
an
average
tensile
strength
25.52
MPa,
slightly
exceeding
ABS
(25.41
MPa)
comparable
PLA
(28.55
MPa).
Despite
diameter
fluctuations,
proved
usable
printing.
Mechanical
tests
rHPDE
printed
objects
PLA,
showing
lower
but
exceptional
ductility
flexibility,
along
superior
sound
absorption.
A
life
cycle
analysis
underscored
sustainability
advantages
rHDPE,
reducing
environmental
impact
conventional
disposal
methods.
While
falls
behind
mechanical
virgin
filaments,
its
unique
attributes
position
it
valuable
option
printing,
showcasing
materials’
innovation.