Influence of LLDPE on the mechanical properties improvement of 3D printed POE/LLDPE blends
Journal of Vinyl and Additive Technology,
Journal Year:
2024,
Volume and Issue:
30(4), P. 983 - 996
Published: Feb. 26, 2024
Abstract
Polyolefins
and
polyolefin
elastomers
(POEs)
are
widely
used
in
various
applications
due
to
their
unique
properties.
However,
use
3D
printing
has
been
limited
challenges
such
as
excessive
softness,
shrinkage,
warpage,
poor
mechanical
In
this
study,
two
strategies
were
employed
enhance
the
performance
of
POEs
printing.
First,
POE
was
blended
with
10%,
30%,
50%
percentages
linear
low‐density
polyethylene
(LLDPE)
improve
material's
properties
printability.
Second,
a
specialized
printer
called
pneumatic
feeding
fused
granule
fabrication
(FGF)
used.
This
allows
for
direct
material
granules,
eliminating
need
filaments
resolving
filament‐related
problems.
To
evaluate
quality
printed
parts,
tensile
tests,
dynamic
thermal
analysis
(DMTA),
scanning
electron
microscopy
(SEM)
imaging
conducted.
The
parts
showed
desirable
(with
approximately
3000%
elongation
at
break
12
MPa
strength).
Compression
tests
also
conducted
on
cubic
structures
varied
composition
ratios
patterns
grid,
triangle,
honeycomb.
main
purpose
research
explore
energy
absorption
capabilities
blends.
results
our
study
that
blending
LLDPE
improved
printability,
strength,
absorption,
compressive
blend
honeycomb
structure
exhibited
best
Highlights
Blending
using
melt
mixing
three
different
ratios.
Successful
technique.
Investigating
properties,
microstructure,
analysis.
125%
increase
ultimate
strength
by
increasing
LLDPE.
Achieving
highest
structure.
Language: Английский
A Review on Additive Manufactured Engineering Materials for Enhanced Road Safety and Transportation Applications
Polymers,
Journal Year:
2025,
Volume and Issue:
17(7), P. 877 - 877
Published: March 25, 2025
Road
safety
systems
are
critical
engineering
solutions
designed
to
minimize
the
effects
of
traffic
accidents
and
increase
transportation
infrastructures.
Traditional
road
structures
generally
manufactured
using
steel,
concrete
polymer
materials.
However,
manufacturing
processes
with
these
materials
high-cost,
limited
in
terms
design
flexibility
can
lead
material
waste.
In
recent
years,
rapidly
developing
additive
(AM)
technologies
stand
out
as
an
important
alternative
production
systems.
AM
enables
complex
geometries
development
lightweight
high-strength
that
absorb
impact
energy
more
effectively.
This
study
focuses
on
use
methods
systems,
examining
performance
applicability
polymer,
metal
composite
The
advantages
AM-produced
barriers,
signs,
speed
bumps
shock
absorbing
structures,
depending
type,
evaluated.
addition,
offered
by
AM,
such
flexibility,
sustainable
efficiency,
discussed,
technical
challenges
limitations
also
discussed.
review
evaluates
current
potential
applications
for
providing
insights
into
how
this
technology
be
used
effectively
future.
findings
provide
significant
contributions
towards
improving
integration
from
both
academic
industrial
perspectives.
Future
research
further
enhance
innovative
a
particular
focus
use,
optimization
efficiency
processes.
overcoming
large-scale
compliance
regulatory
standards
areas
widespread
adoption
technology.
Language: Английский
Additively manufactured metamaterials for acoustic absorption: a review
Virtual and Physical Prototyping,
Journal Year:
2024,
Volume and Issue:
19(1)
Published: Dec. 5, 2024
Noise
pollution,
a
major
concern
in
modern
life,
contributes
to
various
mental
and
psychological
problems.
In
this
study,
we
concentrate
on
the
recent
developments
metamaterials,
particularly
additively
manufactured
acoustic-absorbing
metamaterials.
These
have
demonstrated
enormous
potential
for
noise
reduction
across
broad
range
of
frequencies.
The
current
review
attempts
classify
these
additive-manufactured
acoustic
absorbing
metamaterials
as
perforated,
slotted,
cellular,
hybrid.
Herein,
present
detailed
study
efficiencies
applicability
each
subclass,
well
critique
experimental
research
undertaken
within
subclass.
focuses
subtle
features
their
operation
by
evaluating
effect
varying
key
parameters
sound
absorption
capabilities
Through
comprehensive
review,
aim
highlight
status
evolving
area
motivate
more
innovation
pursuit
effective
pollution
measures.
Language: Английский
Compressive strength performance of 3D printed PLA/almond shell particles reinforced PLA multi-material composite
P. Saravanamuthukumar,
No information about this author
J. Kaaviya,
No information about this author
Sabarinathan Palaniyappan
No information about this author
et al.
Journal of Elastomers & Plastics,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 7, 2024
The
advent
of
3D
printing
has
revolutionized
the
manufacturing
landscape,
enabling
creation
intricate
structures
and
personalized
designs.
use
multi-material
polymer
composites
in
additive
further
expanded
possibilities,
offering
enhanced
mechanical
properties
advanced
functionalities.
In
present
study,
PLA/Almond
shell
reinforced
PLA
(PLA/AmdPLA)
were
developed
using
Fused
Filament
Fabrication
(FFF)
method.
objective
this
study
is
to
develop
optimize
3D-Printing
Parameters
(3D-PP)
with
respect
Printing
Speed
(PS),
Layer
Height
(LH),
Temperature
(PT),
order
maximize
compressive
strength
composites.
L
16
Taguchi
orthogonal
array
was
established
systematically
effects
3D-PP
on
strength.
Through
a
series
experiments,
varying
levels
each
3D-PP,
data
collected
analyzed
determine
optimal
settings.
results
demonstrate
that
PLA/AmdPLA
achieved
its
maximum
when
fabricated
at
PS
20
mm/sec,
LH
0.1
mm,
PT
210°C.
Furthermore,
findings
revealed
significantly
influenced
strength,
while
exhibited
moderate
effects.
regression
analysis
indicate
compression
experiments
conducted
yielded
an
error
percentage
4.73%.
This
suggests
strong
agreement
between
predicted
values
obtained
from
model
actual
experimental
which
shows
high
accuracy.
Therefore,
these
functional
composite
materials
are
recognized
for
their
superior
lightweight
properties,
appealing
aesthetics,
sustainable
qualities
various
consumer
applications.
Language: Английский
Machine learning-based approach for predicting the compressive strength of 3D printed hexagon lattice-cored sandwich structures
Journal of Thermoplastic Composite Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 10, 2024
The
utilization
of
Fused
Filament
Fabrication
(FFF)
technology
for
developing
sandwich
structures
proves
to
be
an
effective
approach,
enabling
the
rapid
construction
intricate
profiles
and
gaining
widespread
recognition
diverse
structural
applications.
In
this
study,
hexagon
lattice-cored
are
created
by
situating
lattice
core
at
center
PLA
polymeric
specimens.
performance
is
assessed
varying
3D-Printing
Factors
(3D-PFs),
including
Nozzle
Temperature
(NT),
Layer
Height
(LH),
Printing
Speed
(PS),
Line
Width
(LW).
levels
3D-PFs
manipulated
as
follows:
NT
(180,
190,
200,
210°C),
LH
(0.15,
0.2,
0.25,
0.3
mm),
PS
(15,
20,
25,
30
mm/sec),
LW
(0.1,
0.3,
0.4
mm).
By
employing
a
FFF
3D
printer,
specimens
3D-printed
their
compression
properties
using
Universal
Testing
Machine
(UTM).
research,
various
Learning
(ML)
models
namely
Bayesian
Ridge
regression
(BRid),
Elastic
Net
linear
(EN),
Quantile
Regression
(QR),
Support
Vector
(SVM)
utilized
predict
compressive
strength/density
property
developed
structure.
This
aids
in
determining
optimal
achieve
enhanced
strength/density.
results
reveal
that
QR
model,
particularly
when
employed
boosting
ensemble
technique,
exhibits
superior
accuracy
with
Root
Mean
Square
Error
(RMSE)
0.26
×
10
4
,
Absolute
(MAE)
0.21
Median
(MedAE)
0.16
.
Utilizing
model
within
influence
on
resulting
analyzed,
facilitating
identification
optimized
3D-PF
improved
Sandwich
fabricated
these
demonstrate
properties,
making
them
suitable
variety
Language: Английский