Fully bio-based polyurethane coating for environmentally friendly controlled release fertilizer: Construction, degradation mechanism and effect on plant growth
Industrial Crops and Products,
Год журнала:
2025,
Номер
225, С. 120437 - 120437
Опубликована: Янв. 8, 2025
Язык: Английский
Borate-epoxy crosslinking elastomer modified bio-based polyurethane coated fertilizers with toughness and hydrophobicity
Sustainable materials and technologies,
Год журнала:
2025,
Номер
unknown, С. e01337 - e01337
Опубликована: Март 1, 2025
Язык: Английский
A new tool to screen biodegradable polymers as technically and commercially viable fertiliser coatings
The Science of The Total Environment,
Год журнала:
2025,
Номер
976, С. 179371 - 179371
Опубликована: Апрель 9, 2025
Polymer
coated
controlled
release
fertilisers
can
mitigate
nutrient
pollution
by
aligning
to
plant
demand,
thereby
reducing
losses,
fertiliser
application
and
potentially
increasing
yields.
However,
most
current
commercial
products
use
polymers
that
do
not
readily
degrade.
This
of
non-degradable
plastics
coat
is
being
phased
out,
opening
new
opportunities
develop
commercialise
truly
biodegradable
coating
alternatives.
the
technical
challenge
substantial.
The
needs
eventually
fully
mineralise,
leaving
no
microplastic
legacy,
yet
it
must
also
maintain
good
mechanical
barrier
properties
for
extended
periods.
work
presents
first
effort
a
polymer
material
selection
tool
guide
as
coatings
based
on
polymers'
known
considerations.
Using
mechanistic
model,
relationship
was
established
between
elongation
required
avoid
rupture
water
vapour
permeability
(WVP)
coating.
Then,
broad
list
commercially
available
assembled
literature
data
their
WVP
at
break
collated.
By
comparing
this
model
outcomes,
likely
achieve
long
term
were
shortlisted.
further
condensed
setting
maximum
price
minimum
global
production
capacity
viability.
We
have
shortlisted
polycaprolactone,
polyurethane
natural
rubber
strong
candidates
coatings.
rate
biodegradation
requires
investigation.
Flexible
polyhydroxyalkanoates,
poly(butylene
succinate)
poly(propylene
carbonate)
are
technically
promising,
but
currently
viable.
Язык: Английский
Enhancing Longevity and Mechanisms of Controlled-Release Fertilizers Through High Cross-Link Density Hyperbranched Bio-Based Polyurethane Coatings
Boning Su,
Mingchuan Yang,
Bin Gao
и другие.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(52), С. 18712 - 18724
Опубликована: Дек. 13, 2024
The
maturation
of
biobased
polymer
synthesis
process
has
led
to
the
rapid
adoption
controlled-release
fertilizers
(BCRFs).
Despite
this
progress,
loose
structure,
low
cross-linking
density,
and
poor
water
repellency
current
coatings
result
in
short
periods,
which
do
not
meet
long-term
nutrient
demands
crops
throughout
their
reproductive
phases.
Moreover,
existing
modifications
address
these
issues
often
involve
addition
external
additives,
can
increase
biotoxicity
cost.
In
study,
castor
oil-based
hyperbranched
polyol
(COHBPs)
was
synthesized
from
oil
(CO)
using
a
"one-pot
method."
We
report
development
high
density
polyurethane
(COHBPPFs)
as
coating
for
BCRFs.
Gel
content
SEM
analysis
demonstrated
that
COHBPPFs
exhibited
degree
cross-linking.
Mechanical
testing
an
electronic
universal
machine,
along
with
AFM
results,
highlighted
superior
mechanical
properties
compared
traditional
coatings.
significantly
enhanced
controlled
release
performance,
3%
providing
nearly
50
days
release,
marked
improvement
over
conventional
mechanism
elucidated
by
modeling
COHBPs
PAPI.
This
study
offers
comprehensive
examination
CRF
multiple
perspectives
provides
valuable
insights
into
cross-link
environmentally
friendly,
renewable
CRFs.
Язык: Английский