Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
142(11)
Опубликована: Дек. 18, 2024
ABSTRACT
Degradable
polyvinyl
alcohol
(PVA)
liquid
mulch
film
is
an
effective
alternative
to
traditional
petroleum‐based
mulch.
However,
PVA
has
problems
such
as
poor
water
resistance
and
high
cost
in
practical
applications.
In
this
work,
a
PCQ
was
prepared
by
simply
blending
quaternized
lignin
(QAL),
carboxymethyl
cellulose
(CMC),
PVA.
characterized
analyzed
through
FT‐IR,
SEM,
other
tests.
The
effects
of
QAL
CMC
on
the
resistance,
barrier
properties,
retention,
soil‐fixing
degradation
properties
were
investigated.
results
showed
that
addition
significantly
enhanced
provided
excellent
UV
shielding
(90%)
vapor
performance
(249.3
g
m
−2
d
−1
).
addition,
effectively
immobilized
topsoil,
retained
soil
moisture,
improved
seed
germination.
This
study
provides
new
strategy
for
preparing
environmentally
friendly,
low‐cost,
degradable
film.
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(12), С. 6946 - 6956
Опубликована: Июнь 15, 2024
In
order
to
protect
the
ecosystem
from
impact
of
plastic
film
pollution,
it
is
necessary
explore
biodegradable
materials
for
producing
a
film.
this
study,
mulch
was
prepared
using
biochar
as
fertilizer
carrier,
Enteromorpha
polysaccharide
(EP),
and
konjac
glucomannan
(KGM)
film's
matrix.
The
result
Fourier
transform
infrared
(FTIR)
showed
that
extracted
prolifera
(E.
prolifera)
rich
in
hydroxyl,
carboxyl,
sulfonic
groups.
FTIR,
scanning
electron
microscopy
(SEM),
energy-dispersive
spectroscopy
proved
urea
successfully
loaded
biochar,
loading
capacity
reached
17.8%.
transmittance
EP/KGM/urea-loaded
(urea-BCF)
less
than
3%,
which
meets
requirements
black
degradation
rate
soil
can
reach
68.3%
after
80
days
burial,
indicating
an
excellent
performance.
SEM
results
particles
were
distributed
uniformly
membrane
addition,
leaching
experiments
release
achieved
equilibrium
20
h,
with
cumulative
almost
76.9%.
This
method
not
only
achieves
high
value
utilization
E.
but
also
provides
simple
strategy
preparing
Ecotoxicology and Environmental Safety,
Год журнала:
2025,
Номер
289, С. 117665 - 117665
Опубликована: Янв. 1, 2025
Residual
films
(RFs)
disrupt
the
normal
migration
and
distribution
of
water,
salts
nutrients
in
soil,
posing
a
significant
threat
to
sustainable
development
agriculture
food
security.
The
effect
complexity
RF
on
soil
water-salt
crop
growth
result
conflicting
findings
previous
studies.
Systematic
quantitative
exploration
thresholds
is
great
significanse.
Focusing
influence
agriculture,
this
study
conducted
meta-analysis
44
peer-reviewed
studies
using
1514
moisture
data
points,
568
salt
312
yield
points.
results
showed:
reduced
by
2.62
%,
decreased
11.72
increased
salinity
4.09
%.
These
adverse
effects
were
exacerbated
environments
with
an
average
annual
evapotranspiration
(AAE)
>
1800
mm,
precipitation
(AAP)
<
500
temperature
(AAT)
10°C.
Although
degradable
film
(DF)
outperformed
ordinary
ones,
no
difference
was
observed
between
RFs
varying
thicknesses
(p
0.05).
levels
0
225
kg·ha
