ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(5), С. 2120 - 2129
Опубликована: Янв. 22, 2024
To
address
the
inadequate
mechanical
strength
of
alginate-based
mulch
films,
this
study
presents
an
innovative
approach
employing
a
dual
network
strategy.
The
consists
alginate
cross-linked
by
gradually
released
calcium
ions
from
nanometer-sized
carbonate
and
micronano
multiscale
fiber
formed
entanglement
hydrogen
bonds
between
microfibrils.
fibers
were
fabricated
through
process
with
no
loss
under
normal
atmospheric
pressure.
Scanning
electron
microscopy,
transmission
X-ray
diffraction
used
to
examine
microstructure
crystallinity
fibers.
obtained
dual-network
films
showed
good
characteristics,
optimum
strength,
water
vapor
permeability,
biodegradability.
Notably,
stress
film
reinforced
was
approximately
ten
times
greater
than
tensile
control
film,
reaching
84.7
MPa
when
CFBC
7.7%.
present
novel
for
material
preparation
reinforcement
due
their
high
yield,
low
energy
consumption,
easy
process,
compatibility
other
polymers.
Materials,
Год журнала:
2023,
Номер
16(15), С. 5459 - 5459
Опубликована: Авг. 3, 2023
The
treatment
of
skin
wounds
caused
by
trauma
and
pathophysiological
disorders
has
been
a
growing
healthcare
challenge,
posing
great
economic
burden
worldwide.
use
appropriate
wound
dressings
can
help
to
facilitate
the
repair
healing
rate
defective
skin.
Natural
polymer
biomaterials
such
as
collagen
hyaluronic
acid
with
excellent
biocompatibility
have
shown
promote
restoration
However,
low
mechanical
properties
fast
degradation
limited
their
applications.
Skin
based
on
biodegradable
biocompatible
synthetic
polymers
not
only
overcome
shortcomings
natural
but
also
possess
favorable
for
applications
in
wounds.
Herein,
we
listed
several
used
dressing
materials,
PVA,
PCL,
PLA,
PLGA,
PU,
PEO/PEG,
focusing
composition,
fabrication
techniques,
functions
promoting
healing.
Additionally,
future
development
prospects
polymer-based
are
put
forward.
Our
review
aims
provide
new
insights
further
using
polymers.
ACS Applied Polymer Materials,
Год журнала:
2023,
Номер
5(9), С. 6864 - 6874
Опубликована: Авг. 17, 2023
Mulch
film
and
slow-release
fertilizers
are
widely
used
in
agriculture
horticulture,
it
has
become
a
trend
to
use
degradable
materials
for
the
preparation
of
mulch
films
using
materials.
However,
most
have
poor
performance
or
relatively
high
cost.
In
this
study,
three
types
materials,
namely,
poly(vinyl
alcohol)
(PVA),
corn
starch
(CS),
alkali
lignin
(AL),
were
as
obtain
with
fertilizer
function
(MSRF).
MSRF
had
excellent
when
10%
AL
was
added.
The
properties
consisted
elongation
at
break
(180.14%),
water
vapor
permeability
(203.8
g
m–2
day–1),
resistance
(its
morphology
remained
good
50
days),
absorption
(300%),
urea
release
efficiency
(cumulative
70.63%
30
days).
Rapid
plant
growth
trials
demonstrated
that
functionality
could
reduce
amount
applied
by
about
70%.
These
performances
due
combination
chemical
cross-linking
(chemical
bonding)
between
PVA/CS
molecular
chains,
hydrogen
bonding
AL,
PVA,
CS
molecules,
aggregation
AL.
This
provided
green
efficient
strategy
application
dual
functions
mulching
slow
fertilizer.
