Enhanced Anti‐Migration of Organic Antioxidants via Chitosan‐Encapsulated Ultrathin Intercalated Layered Double Hydroxides Fabricated by a Nucleation‐Encapsulation Coupling Strategy
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 7, 2025
Abstract
Antioxidants
play
a
crucial
role
in
inhibiting
polypropylene
(PP)
oxidative
damage
and
extending
polymer
lifetime.
However,
the
high
migration
rate
limited
efficiency
reduced
protection,
often
requiring
overdosing,
which
raises
environmental
health
issues.
Herein,
more
sustainable
solution
involves
an
ultrathin
antioxidant
intercalated
layered
double
hydroxides
(LDHs)
with
chitosan
(CS)
encapsulation
to
block
antioxidants
by
tuning
CS
molecular
weight
fully
encapsulate
LDH
unit.
The
optimized
inhibits
without
hindering
interlayer
diffusion
of
radicals,
thereby
providing
better
protection
for
PP.
200kCS‐3L‐LDH/PP
low
phenolic
(3,5‐Di‐tert‐butyl‐4‐hydroxyphenylpropionic
acid,
abbreviated
as
DBHP)
encapsulated
MW
=
200k
at
level
11.6%
(actual
percentage
weight),
demonstrates
ratio
8.17%
after
204
h
ethanol
60
°C
overlong
thermal
aging
resistance
time
(1920
min)
under
air,
surpassing
conventional
most
resistant
product
currently
on
market
1010/PP
(46.0%
640
min,
respectively).
Such
“Russian
doll”
structure
offers
promising
way
enhance
PP
excellent
anti‐migration
antioxidative
performance,
while
valuable
strategy
design
controlled
release
if
desired
species
LDHs.
Язык: Английский
Carboxymethyl chitosan modified double-skeleton hydrogel electrolyte enables high performance for flexible zinc-air batteries
International Journal of Biological Macromolecules,
Год журнала:
2025,
Номер
303, С. 140678 - 140678
Опубликована: Фев. 4, 2025
Язык: Английский
Crosslinking network design of cellulose-based conductive gels: Mechanism, strategies, and characterization
Progress in Materials Science,
Год журнала:
2025,
Номер
unknown, С. 101476 - 101476
Опубликована: Март 1, 2025
Язык: Английский
Centrifugal Spinning-Derived Biomimetic Aerogel for Rapid Hemostasis with Minimal Blood Loss
Nano Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 4, 2025
For
emergency
treatment,
especially
in
situations
where
rapid
and
effective
hemostasis
is
required
beyond
the
natural
clotting
mechanisms,
advanced
materials
designed
to
reduce
bleeding
time
minimize
blood
loss
have
become
an
urgent
need.
Herein,
a
root
hair-inspired
aerogel
developed,
which
characterized
by
99.99%
interconnected
pore
structure
three-dimensional
network
constructed
blocked
aqueous
isocyanates
cross-linked
grooved
cellulose
acetate
wrinkled
thermoplastic
polyurethane
fibers
via
centrifugal
spinning.
The
exhibits
enhanced
water
absorption
minimal
adsorption
through
coagulation
cascade
activation.
In
vivo
studies
using
rat
tail,
hepatic,
renal
injury
models
demonstrate
substantial
reduction
(∼94%)
(∼78%)
compared
commercial
hemostats.
developed
offers
promising
solution
for
hemorrhage
control.
Язык: Английский