Progress in Rubber Plastics and Recycling Technology,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 14, 2024
This
study
investigates
the
incorporation
of
thermoplastic
starch
(TPS)
into
polybutylene
adipate
terephthalate
(PBAT)
to
create
biodegradable
plastic
wraps
for
pathological
waste
burial
in
soil.
TPS
is
added
PBAT
enhance
biodegradability,
as
alone
degrades
slowly.
The
research
examines
mechanical
properties,
biodegradation,
morphology,
and
swelling
behaviour
blends.
Key
tests
include
xenon
arc
light
exposure
accelerated
aging,
a
formalin
test
permeability,
soil
degradation
analysis
weight
loss.
Results
show
that
adding
significantly
reduces
tensile
strength
(65.53%)
elongation
at
break
(93.35%),
but
material
still
effectively
serves
its
purpose
wrapping
waste.
Morphological
reveals
phase
separation,
UV
further
decreases
by
27.6%.
highest
composition
(30TPS/70PBAT)
shows
fastest
degradation,
indicating
biodegradation.
Despite
minimal
absorption
(16%
within
1
day),
blends
prevent
leaching,
making
them
suitable
containment.
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(21), С. 13378 - 13388
Опубликована: Окт. 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.
Journal of Thermoplastic Composite Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 28, 2025
Low
molecular
weight
oligomer
polybutylene
terephthalate
(PBT)
with
carboxyl
terminated
groups
was
synthesized
via
dry
esterification
method,
and
then
used
to
esterify
the
surface
of
cellulose.
The
optimal
reaction
conditions
were
identified
as
a
PBT-to-cellulose
mass
ratio
1:5,
an
time
6
h,
catalyst
dosage
2%
cellulose
mass.
esterified
blended
PBAT
prepare
composite
materials,
effects
varying
amounts
on
mechanical
properties,
thermal
two-phase
compatibility
composites
explored.
performance
PBAT/esterified
compared
that
PBAT/cellulose
composites.
results
indicated
its
dispersion
in
significantly
improved
after
PBT
esterification.
When
95/5,
tensile
strength,
elongation
at
break
modulus
material
reached
21.89
MPa,
593.82%
86.3
respectively.
