Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(9), P. 667 - 667
Published: April 27, 2025
Halloysite
nanoclay
(HNC)
and
as-polymerized
polytetrafluoroethylene
powder
(PTFE)
were
introduced
into
biodegradable
polylactic
acid
(PLA)
via
a
melt
mixing
technique
to
enhance
its
mechanical,
rheological
properties
foaming
ability.
The
synergetic
effects
of
these
fillers
on
the
morphological,
thermal,
PLA
investigated.
Results
indicated
that
tensile
improved
in
comparison
neat
PLA.
Differential
Scanning
Calorimetry
(DSC)
revealed
decrease
crystallization
time
with
increasing
filler
concentration,
indicating
strong
nucleating
effect
crystallization.
Extensional
flow
tests
showed
strain
hardening
composites
is
influenced
by
fillers,
PTFE
particularly
exhibiting
more
pronounced
effect,
attributed
nanofibrillation
entanglement
during
processing.
addition
dual-filler
system
strength
viscosity
PLA,
resulting
foams
decreased
cell
size
increased
density.
Science Advances,
Journal Year:
2025,
Volume and Issue:
11(14)
Published: April 2, 2025
Unlike
conventional
methods
that
typically
involve
extracting
biopolymers/monomers
from
biomass
using
lots
of
hazardous
chemicals
and
high
energy,
the
direct
utilization
biological
matter
(biomatter)
without
extraction
offers
a
more
sustainable
alternative
for
bioplastic
production.
However,
it
often
suffers
insufficient
mechanical
performances
or
limited
processabilities.
Herein,
we
proposed
hybrid
microscale
biomatter
coassembly
strategy
leverages
interactions
between
inherent
microarchitectures
waste
cotton
fiber
pollen
particles.
With
minimal
preprocessing,
they
form
castable
slurry
can
spontaneously
organize
into
dense
fiber-laminate
network,
exhibiting
properties
(52.22
megapascals
2.24
gigapascals)
toxic
organic
heavy
machinery.
The
resulting
features
controlled
hydration-induced
microstructural
disassembly/reassembly,
enabling
water-based
processability
complex,
dynamic
architectural
systems.
In
addition,
demonstrates
good
biodegradability,
closed-loop
recyclability,
satisfactory
environmental
benefits,
outperforming
most
common
plastics.
This
study
provides
an
instant
nature-derived
paradigm
bioplastics’
production,
processing,
recycling,
offering
promising
solution
facilitating
eco-friendly
advanced
applications.
Journal of Applied Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
ABSTRACT
This
study
presents
the
development
of
a
biodegradable
composite
scaffold
designed
to
address
limitations
associated
with
conventional
bone
repair
materials.
3D‐printing
filaments
were
developed
using
fish
scale
powder
(FSP)
or
scale‐derived
hydroxyapatite
(HAP),
polylactic
acid
(PLA),
and
polycaprolactone
(PCL),
focus
on
optimal
effect
5
wt%
HAP
mechanical
properties
PLA.
Composite
scaffolds
further
prepared
by
integrating
3D‐printed
grid
chitosan/gelatin
hydrogels
through
vacuum
freeze‐drying.
The
evaluated
property
tests,
thermal
analysis
(including
DSC
TGA),
absorption
rate
assessments
(conducted
via
immersion
experiments
in
various
solutions),
surface
morphology
analyses
(utilizing
SEM
EDS).
results
show
that
addition
significantly
improves
filaments.
high
exhibited
HAP/PLA
suggests
improved
biocompatibility
its
potential
for
vivo
tissue
fluid
absorption.
showed
visible
mineralization
degradation
after
10
days
simulated
body
(SBF),
highlighting
regeneration.
Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(9), P. 667 - 667
Published: April 27, 2025
Halloysite
nanoclay
(HNC)
and
as-polymerized
polytetrafluoroethylene
powder
(PTFE)
were
introduced
into
biodegradable
polylactic
acid
(PLA)
via
a
melt
mixing
technique
to
enhance
its
mechanical,
rheological
properties
foaming
ability.
The
synergetic
effects
of
these
fillers
on
the
morphological,
thermal,
PLA
investigated.
Results
indicated
that
tensile
improved
in
comparison
neat
PLA.
Differential
Scanning
Calorimetry
(DSC)
revealed
decrease
crystallization
time
with
increasing
filler
concentration,
indicating
strong
nucleating
effect
crystallization.
Extensional
flow
tests
showed
strain
hardening
composites
is
influenced
by
fillers,
PTFE
particularly
exhibiting
more
pronounced
effect,
attributed
nanofibrillation
entanglement
during
processing.
addition
dual-filler
system
strength
viscosity
PLA,
resulting
foams
decreased
cell
size
increased
density.
