Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(35), P. 15534 - 15545
Published: Aug. 23, 2024
Poly(vinyl
alcohol)
(PVA)
is
an
environmentally
friendly
polymer
that
can
be
prepared
from
nonpetroleum
routes,
offering
a
promising
alternative
to
save
finite
fossil
resources
and
protect
our
environment.
However,
the
multihydroxyl
groups
in
PVA
endow
it
with
sensitivity
environmental
humidity,
deteriorating
its
mechanical
gasoline
barrier
properties
aqueous
environments,
limiting
long-term
application
transportation.
In
order
improve
water
resistance
achieve
use
of
tubes
by
melt
extrusion,
herein,
hydrophobic
polydimethylsiloxane
(PDMS)
was
adopted
grafted
onto
surface
assistance
ethyl
orthosilicate
(TEOS),
organic
silicon
coating
approximate
thickness
5
μm
established.
Ascribing
this
rough
coating,
tube
greatly
improved,
which
reflected
contact
angle
increasing
30.6°
110.2°.
Simultaneously,
property
high
ambient
humidity
(95%)
were,
respectively,
increased
6.4
MPa
1.8
times,
compared
original
one.
This
PDMS
also
exhibited
good
friction
tear
adhesive
tape,
largely
promoting
potential
applications
field
Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(44), P. 18997 - 19006
Published: Oct. 24, 2024
Currently,
as
a
biodegradable
polyester,
poly(butylene
adipate-co-terephthalate)
(PBAT)
and
its
foamed
part
are
widely
used
in
the
packaging
field
due
to
excellent
ductility
heat
resistance.
However,
low-melt
strength
poor
shrinkage
resistance
of
PBAT
influence
foaming
behavior,
decrease
mechanical
performance,
weaken
shape
stability,
thus
restricting
regular
use.
Herein,
an
environment-friendly
water-soluble
poly(vinyl
alcohol)
(PVA),
with
superior
properties
low
cost,
was
introduced
fabricate
blend
foam
via
combining
thermal
processing
supercritical
carbon
dioxide
(scCO2)
technologies.
The
effects
PVA
content
on
phase
morphology
rheological
behavior
blend,
well
cell
structure
PBAT/PVA
foam,
were
deeply
investigated.
Additionally,
incorpation
porous
contributed
soil
consumption
capacity,
owing
PVA's
better
water
solubility
foam's
higher
specific
surface
area.
achieved
demonstrated
compressive
1.05
×
104
N·m/kg,
mass
loss
ratio
28.2%,
lower
volume
0.7%,
providing
valuable
insights
for
expanding
applications
addressing
disposable
plastic
pollution.
Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(35), P. 15534 - 15545
Published: Aug. 23, 2024
Poly(vinyl
alcohol)
(PVA)
is
an
environmentally
friendly
polymer
that
can
be
prepared
from
nonpetroleum
routes,
offering
a
promising
alternative
to
save
finite
fossil
resources
and
protect
our
environment.
However,
the
multihydroxyl
groups
in
PVA
endow
it
with
sensitivity
environmental
humidity,
deteriorating
its
mechanical
gasoline
barrier
properties
aqueous
environments,
limiting
long-term
application
transportation.
In
order
improve
water
resistance
achieve
use
of
tubes
by
melt
extrusion,
herein,
hydrophobic
polydimethylsiloxane
(PDMS)
was
adopted
grafted
onto
surface
assistance
ethyl
orthosilicate
(TEOS),
organic
silicon
coating
approximate
thickness
5
μm
established.
Ascribing
this
rough
coating,
tube
greatly
improved,
which
reflected
contact
angle
increasing
30.6°
110.2°.
Simultaneously,
property
high
ambient
humidity
(95%)
were,
respectively,
increased
6.4
MPa
1.8
times,
compared
original
one.
This
PDMS
also
exhibited
good
friction
tear
adhesive
tape,
largely
promoting
potential
applications
field
