Shortening the Saturation Time of PBAT Sheet Foaming via the Pre-Introducing of Microporous Structures
Materials,
Год журнала:
2025,
Номер
18(5), С. 1044 - 1044
Опубликована: Фев. 26, 2025
Poly
(butylene
adipate-co-terephthalate)
(PBAT)
foam
sheets
prepared
by
foaming
supercritical
fluids
are
characterized
high
resilience,
homogeneous
cellular
structure,
and
well-defined
biodegradability.
However,
the
inert
chemical
structure
rigid
hard
segments
restrict
diffusion
of
CO2
within
PBAT
matrix,
resulting
in
extremely
long
gas
saturation
times
as
9
h
at
a
thickness
12
mm.
In
this
study,
microporous
structures
were
pre-introduced
into
matrix
to
provide
fast
pathway
during
process.
After
2
saturation,
with
expansion
ratio
10
13.8
prepared.
The
interaction
was
systematically
investigated,
sorption
process
evaluated
kinetically
thermodynamically
using
Fickian
theory.
solubility
rate
pretreated
different
sizes
densities
effects
pretreatment
strategies
on
behavior
cell
discussed.
introduction
not
only
reduces
time
but
also
enhances
solubility,
enabling
successful
preparation
soft
foams
ratios
resilience.
undergoing
treatment,
μm
density
0.45
g/cm3
demonstrated
improved
mechanical
properties:
their
hardness
decreased
35
C
while
resilience
increased
58%,
reflecting
enhanced
elastic
recovery
capabilities.
method,
which
increases
sheets,
offers
straightforward
approach
that
provides
valuable
insights
achieving
rapid
efficient
thick
industrial
applications.
Язык: Английский
Investigation of the Physicochemical and Antibacterial Activities of Plant Extract of Juniperus communis L. With Poly(Butylene Adipate‐Co‐Terephthalate) Films for Food Packaging
Polymers for Advanced Technologies,
Год журнала:
2024,
Номер
35(12)
Опубликована: Дек. 1, 2024
ABSTRACT
In
this
work,
a
plant‐based
composite
materials
that
can
be
used
as
food
packaging
has
been
developed.
Juniperus
communis
L.
extract,
which
is
known
to
have
good
antibacterial
activity,
was
added
poly(butylene
adipate‐co‐terephthalate)
(PBAT)
at
different
percentage
(1%,
5%,
10%,
15%,
20%)
and
produced
films
by
solution
casting
method.
All
the
prepared
PBAT
were
subjected
characterization
techniques
like
attenuated
total
reflection‐infrared
spectroscopy
(ATR‐IR),
x‐ray
diffraction
(XRD),
surface
morphology,
thermal
stability,
mechanical
strength,
film
color,
opacity,
wettability,
properties.
Thermogravimetric
analysis
(TGA)
conducted
on
stability
of
films.
To
examine
suitability
for
packaging,
measurements
opacity
water
vapor
permeability
performed.
It
determined
higher
L.,
enhanced
test
results.
The
films'
activity
against
both
gram‐positive
(
S.
aureus
)
gram‐negative
E.
coli
bacteria
tested.
optimum
observed
in
with
20%
plant
extract.
However,
it
supposed
characteristics
are
improved
adding
extract
PBAT.
Язык: Английский