ACS Sustainable Chemistry & Engineering,
Journal Year:
2020,
Volume and Issue:
8(17), P. 6576 - 6589
Published: Jan. 2, 2020
The
research
presented
in
this
article
discusses
the
subject
of
poly(lactic
acid)
(PLA)
modification
via
reactive
mixing
with
poly(butylene
adipate-co-terephthalate)
(PBAT)
copolymer
for
3D
printing
applications.
Filaments
suitable
fused
deposition
modeling
were
prepared
from
blends
PLA
containing
10,
20,
and
30%
by
weight
PBAT.
Mechanical
testing
clearly
indicated
that
blending
PBAT
effectively
increases
impact
strength
PLA,
an
initial
value
approximately
30
J/m
to
more
than
700
optimized
PLA/PBAT
(30%)
chain
extender-modified
blend.
addition
multifunctional
extender
(ESA)
also
has
a
positive
effect
on
rheological
profile
materials,
which
facilitates
both
production
process
extruded
filament
maintenance
stable
width
printed
material
path.
Despite
use
significant
content,
analysis
thermomechanical
properties
did
not
show
any
deterioration
thermal
resistance
while
detailed
differential
scanning
calorimetry
indicates
small
tendency
nucleate
structure
inclusions.
structural
electron
microscopy
change
mechanism
deformation
brittle
fracture
pure
favorable
shear
yielding
PBAT-rich
blends.
comparison
injected
possibility
obtaining
similar
or
some
respects
better
mechanical
properties,
especially
ESA-modified
samples.
Polymers,
Journal Year:
2020,
Volume and Issue:
12(7), P. 1529 - 1529
Published: July 10, 2020
Fused
deposition
modelling
(FDM)
is
one
of
the
fastest-growing
additive
manufacturing
methods
used
in
printing
fibre-reinforced
composites
(FRC).
The
performances
resulting
printed
parts
are
limited
compared
to
those
by
other
due
their
inherent
defects.
Hence,
effort
develop
treatment
overcome
these
drawbacks
has
accelerated
during
past
few
years.
main
focus
this
study
review
impact
defects
on
mechanical
performance
FRC
and
therefore
discuss
available
eliminate
or
minimize
them
order
enhance
functional
properties
parts.
As
a
combination
polymer
matrix
material
continuous
short
reinforcing
fibres,
will
thoroughly
both
thermoplastic
polymers
FRCs
via
FDM
technology,
including
effect
parameters
such
as
layer
thickness,
infill
pattern,
raster
angle
fibre
orientation.
most
common
parts,
particular,
void
formation,
surface
roughness
poor
bonding
between
matrix,
explored.
An
inclusive
discussion
effectiveness
chemical,
laser,
heat
ultrasound
treatments
provided
review.
Polymers,
Journal Year:
2021,
Volume and Issue:
13(8), P. 1326 - 1326
Published: April 18, 2021
Over
recent
years,
enthusiasm
towards
the
manufacturing
of
biopolymers
has
attracted
considerable
attention
due
to
rising
concern
about
depleting
resources
and
worsening
pollution.
Among
available
in
world,
polylactic
acid
(PLA)
is
one
highest
produced
globally
thus,
making
it
suitable
for
product
commercialisation.
Therefore,
effectiveness
natural
fibre
reinforced
PLA
composite
as
an
alternative
material
substitute
non-renewable
petroleum-based
materials
been
examined
by
researchers.
The
type
used
fibre/matrix
adhesion
very
important
because
influences
biocomposites'
mechanical
properties.
Besides
that,
outline
present
circumstance
fibre-reinforced
3D
printing,
well
its
functions
4D
printing
applications
stimuli-responsive
polymers
were
also
discussed.
This
research
paper
aims
development
conducted
studies
on
PLA-based
bio-composites
over
last
decade.
work
reviews
PLA-derived
bio-composite
related
synthesis
biodegradation,
properties,
processes,
challenges
prospects.
Polymers,
Journal Year:
2022,
Volume and Issue:
14(1), P. 202 - 202
Published: Jan. 5, 2022
Polylactic
acid
(PLA)
is
a
thermoplastic
polymer
produced
from
lactic
that
has
been
chiefly
utilized
in
biodegradable
material
and
as
composite
matrix
material.
PLA
prominent
biomaterial
widely
used
to
replace
traditional
petrochemical-based
polymers
various
applications
owing
environmental
concerns.
Green
composites
have
gained
greater
attention
ecological
consciousness
grown
since
they
the
potential
be
more
appealing
than
conventional
petroleum-based
composites,
which
are
toxic
nonbiodegradable.
PLA-based
with
natural
fiber
extensively
variety
of
applications,
packaging
medicine,
due
their
biodegradable,
recyclable,
high
mechanical
strength,
low
toxicity,
good
barrier
properties,
friendly
processing,
excellent
characteristics.
A
summary
fibers,
green
PLA,
along
respective
classification,
functionality,
different
processing
methods,
discussed
discover
fiber-reinforced
development
for
wide
range
applications.
This
work
also
emphasizes
research
properties
blend
hybrid
over
past
few
years.
PLA's
strong
engineering
areas
addressed.
review
covers
issues,
challenges,
opportunities,
perspectives
developing
characterizing
composites.
Polymer Testing,
Journal Year:
2020,
Volume and Issue:
93, P. 106925 - 106925
Published: Oct. 23, 2020
The
development
of
fibre
composites
in
recent
years
has
been
remarkably
strong,
owing
to
their
high
performance
and
durability.
Various
advancements
are
emerging
because
increased
use
a
myriad
applications.
One
the
popular
processing
methods
is
additive
manufacturing
(AM),
however,
polymer-fibre
manufactured
through
AM
have
significantly
lower
strength
compared
conventional
processes,
for
instance,
injection
moulding.
This
article
comprehensive
review
mechanical
testing
analysis
fabricated
AM,
particular
fused
deposition
modelling
(FDM).
highlights
effect
various
parameters,
involved
FDM
composites,
on
observed
properties.
In
addition,
thermal
properties
based
also
briefly
reviewed.
Overall,
structured
provide
an
impetus
researchers
concerned
engineering
domain
gain
insight
into
fibre-reinforced
polymeric
AM.
Materials & Design,
Journal Year:
2020,
Volume and Issue:
194, P. 108911 - 108911
Published: June 28, 2020
To
date,
the
literature
has
focused
on
synthetic
fibre-reinforced
composites,
but
it
not
adequately
addressed
unique
properties
that
differentiate
natural
from
fibres,
such
as
their
variation
in
microstructure
and
composition
across
species.
This
review
paper
proposes
a
critical
overview
of
current
state
3D
printing
composites
or
biocomposites
for
mechanical
purposes,
well
an
role
4D
stimuli-responsive
applications.
The
is
structured
follows:
after
first
part
recalling
specificities
fibres
associated
two
main
sections
are
each
divided
into
parts
presenting
analysis
available
data
to
provide
fundamental
understandings
discussion
outlook
future.
Natural
discontinuous
polymers
exhibit
moderate
compared
manufactured
by
conventional
processes
due
specific
factors
process,
high
porosity,
low
fibre
content,
very
fibre-aspect
ratio
(L/d).
Hygromorph
BioComposites
(HBC)
categorized
new
class
smart
materials
could
be
used
shape-changing
mechanisms.
Fibre
orientation
control,
continuity
outlined
relation
known
challenges
actuation
performance.
Micromachines,
Journal Year:
2020,
Volume and Issue:
11(9), P. 796 - 796
Published: Aug. 22, 2020
Since
the
late
1980s,
additive
manufacturing
(AM),
commonly
known
as
three-dimensional
(3D)
printing,
has
been
gradually
popularized.
However,
microstructures
fabricated
using
3D
printing
is
static.
To
overcome
this
challenge,
four-dimensional
(4D)
which
defined
fabricating
a
complex
spontaneous
structure
that
changes
with
time
respond
in
an
intended
manner
to
external
stimuli.
4D
originates
but
beyond
printing.
Although
mainly
based
on
and
become
branch
of
manufacturing,
objects
are
no
longer
static
can
be
transformed
into
structures
by
changing
size,
shape,
property
functionality
under
stimuli,
makes
alive.
Herein,
recent
major
progresses
reviewed,
including
AM
technologies
for
stimulation
method,
materials
applications.
In
addition,
current
challenges
future
prospects
were
highlighted.
