Zn2+-doped
carbon
quantum
dots
(Zn-CDs)
and
polycarbodiimide
(PCDI)
were
utilized
as
reactive
compatibilizers
to
improve
the
material
properties
of
polylactic
acid/poly(butyleneadipate-co-terephthalate)
(PLA/PBAT)
blends.
Extensive
investigations
conducted
evaluate
mechanical,
thermal,
rheological
composite
materials.
In
addition,
synergistic
interaction
PCDI
Zn-CDs
in
PLA/PBAT
blends
was
also
explored.
Notably,
successful
implementations
these
industrial
grade
fused
deposition
molding
(FDM)
pellet
printers
achieved.
The
results
unequivocally
demonstrated
that
incorporation
effectively
improved
compatibility
blends,
resulting
excellent
mechanical
properties.
However,
due
poor
melt
flow
behavior,
its
suitability
for
melt-printing
applications
is
limited.
This
issue
resolved
by
introducing
into
blend
system.
tests
showed
samples
exhibited
a
tensile
strength
32.8
MPa
under
effect
PCDI/Zn-CDs,
while
achieving
remarkable
elongation
at
break
value
728%
an
increase
rates
109%.
enhanced
mechanism
PCDI/Zn-CDs
further
analyzed
through
microscopic
morphology.
reaction
between
terminal
carboxyl
groups
resulted
copolymer
formation,
enhancing
molecular
chain
entanglement
interphase
interfacial
adhesion.
Moreover,
combination
strengthened
intermolecular
forces
hydrogen
bonding
metal
coordination,
thereby
imparting
superior
thermal
printing
applications.
ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(21), P. 13378 - 13388
Published: Oct. 17, 2024
The
incorporation
of
biodegradable
poly(butylene
adipate-co-terephthalate)
(PBAT)
into
poly(lactic
acid)
(PLA)
is
a
simple
method
to
improve
the
toughness
PLA;
however,
toughening
efficiency
PBAT
limited,
and
direct
blending
adversely
impacts
stiffness
material.
In
this
paper,
surface
nano-CaCO3
was
modified
with
3-Glycidoxypropyltrimethoxysilane
(KH560)
in
order
prepare
CaCO3-g-KH560.
A
two-step
extrusion
process
using
multifunctional
epoxy
oligomers
(ADR)
as
cross-linking
agents
used
PLA/PBAT/CaCO3
ternary
blends
subinclusion
structure.
first
extrusion,
ADR
CaCO3
nanoparticles
were
mixed
PBAT.
During
second
epoxide
groups
cross-linked
dispersing
phase,
well
co-cross-linked
PLA
continuous
phase
at
PLA/PBAT
interface.
Fourier
Transform
Infrared
Spectroscopy
(FTIR)
confirmed
speculation.
Additionally,
Dynamic
mechanical
analysis
(DMA)
Scanning
electron
microscopy
(SEM)
analyses
showed
that
co-cross-linking
reaction
improved
interfacial
compatibility
PLA/PBAT.
Energy
dispersive
spectrometer
(EDS)
Transmission
(TEM)
uniform
dispersion
phase.
synergistic
allowed
for
notched
impact
strength
tensile
prepared
blend
reach
74.5
kJ/m2
55.7
MPa
(11
times
1.3
higher
than
same
ratio,
respectively).
Compared
elastomer
alone,
structure
improves
rigidity
composite
owing
interactions
distinct
energy
loss
mechanism.
This
paper
provides
methodology
preparation
balanced
stiffness.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(8), P. 1107 - 1107
Published: April 16, 2024
Biodegradable
blends
based
on
plasticized
poly(lactic
acid)
PLA
and
thermoplastic
starch
(TPS)
have
been
obtained.
The
influence
of
the
plasticizer
as
a
compatibility
agent
has
studied
by
using
two
different
plasticizers
such
neat
oligomeric
lactic
acid
(OLA)
functionalized
with
maleic
(mOLA).
In
particular,
morphological,
thermal,
mechanical
properties
well
shape
memory
ability
melt-processed
materials.
Therefore,
interaction
between
matrix
polymeric
phases
thermally-activated
studied.
It
is
very
interesting
to
use
same
additive
able
act
both
compatibilizer,
decreasing
glass
transition
temperature
close
physiological
one,
obtaining
material
suitable
for
potential
biomedical
applications.
we
obtain
that
OLA-plasticized
blend
(oPLA/TPS)
show
good
capability
at
45
°C
50%
deformation,
while
obtained
OLA
(moPLA/TPS)
did
not
behavior
deformation.
This
fact
due
their
morphological
changes
loss
well-distinguished
phases,
one
acting
fixed
phase
other
switching
typically
response.
results
it
important
make
balance
considering
need
well-established
