Journal of Vinyl and Additive Technology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 18, 2025
Abstract
This
study
explores
the
optimization
of
mechanical
properties
in
3D‐printed
components
made
from
a
Polylactic
Acid
(PLA)
and
Walnut
Shell
Composite
using
Fused
Filament
Fabrication
(FFF).
Employing
machine
learning‐based
approach,
research
identifies
optimal
regression
model
for
predicting
relationships
between
printing
parameters
material
properties.
A
Taguchi
L18
design
is
used
to
minimize
experiment
count
while
accurately
determining
parameter
levels.
Testing
was
conducted
on
composite
containing
30%
walnut
shell
fibers,
with
Ultimate
Tensile
Strength
(UTS)
Elastic
Modulus
(E)
measured
as
per
ASTM
D638
standards.
Experimental
factors
included
Layer
Thickness
(LT),
Nozzle
Temperature
(NT),
Deposition
Angle
(DA),
Printing
Speed
(PS).
Using
Analysis
Variance
(ANOVA)
learning
techniques,
effects
these
UTS
E
were
evaluated.
Results
highlight
deposition
angle
dominant
parameter,
models,
especially
Random
Forest
Regression,
providing
highly
accurate
predictions.
approach
presents
novel,
data‐driven
method
optimizing
3D
processes
sustainable,
materials.
Highlights
Higher
achieved
optimized
PLA/walnut
composite.
key
element
performance
FFF
printing.
thickness
important
improve
Modulus.
Statistical
techniques
combined
sustainable
Improved
process
understanding
printed
components.
Journal of Materials Research and Technology,
Journal Year:
2023,
Volume and Issue:
26, P. 8366 - 8387
Published: Sept. 1, 2023
As
advancements
in
sustainable
material
science
continue,
kenaf
fiber
and
polylactic
acid
(KF/PLA)
composites
have
emerged
as
promising
eco-friendly
alternatives.
The
current
research
article
has
focused
on
improving
the
physical
strength
of
these
KF/PLA
composites.
Methodologies
like
Taguchi's
Grey
Relational
Analysis
(GRA)
been
employed
to
identify
most
effective
ways
enhance
chemical
treatment
process.
were
manufactured
using
an
injection
molding
technique
while
essential
variables
modified.
These
comprised
choice
treatments
(sodium
hydroxide,
potassium
or
sodium
acetate),
concentration
chemicals
(1%,
2%,
3%
w/v),
duration
(2,
4,
6
hours).
modifications
led
production
diverse
composite
variants.
modified
was
evaluated
various
methods,
focusing
their
tensile
strength,
modulus,
elongation
under
tension,
flexural
deformability
bending,
impact
resistance.
A
Scanning
Electron
Microscope
(SEM)
utilized
observe
treated
tested
samples
detail.
optimal
values
identified
through
GRA
mean
plots
same
for
composite.
Improved
mechanical
properties
observed
when
conditions
A1-B2-C2
(NaOH,
4
hours)
applied.
Although,
morphology
PLA
matrix-based
bio
reinforced
with
different
surface-treatments
recorded
AFM
analysis
order
further
reveal
surface
roughness
fibers
upon
modification
dispersion.
Cleaner Materials,
Journal Year:
2023,
Volume and Issue:
9, P. 100196 - 100196
Published: July 5, 2023
The
main
objective
of
this
study
is
to
review
the
applicability
rapeseed
straw
(RSS)
as
a
sustainable
filler
material
in
polylactic
acid
(PLA)-based
biocomposites.
effect
different
RSS
particle
sizes
and
concentrations
(0-20
wt.%)
on
mechanical,
morphological,
thermal,
water
absorption
properties
was
investigated.
composites
were
fabricated
by
melt
compounding
using
twin-screw
extruder
followed
injection
molding.
mechanical
analyzed
through
tensile
flexural
tests
Charpy
impact
tests.
morphology
samples
investigated
scanning
electron
microscopy
(SEM).
thermal
crystallinity
determined
differential
calorimetry
(DSC).
Mechanical
revealed
an
increasing
stiffness
PLA
function
loading,
albeit
at
cost
strength.
SEM
images
have
shown
limited
interfacial
adhesion
between
straw,
which
suggested
be
responsible
for
decreased
strength
values.
Based
DSC
measurements,
fibers
facilitated
nucleation
composites,
thereby
decreasing
cold
crystallization
temperature
PLA.
conducted
experiments
demonstrated
that
environmentally
friendly
economically
attractive
biocomposites
can
substituting
part
with
lignocellulosic
by-product.
