Transitioning to Microplastic-Free Seed Coatings: Challenges and Solutions
Rozenn Langlet,
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Romain Valentin,
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Marie Morard
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et al.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(14), P. 1969 - 1969
Published: July 10, 2024
This
review
addresses
the
issue
of
replacing
manufactured
microplastics
in
seed
coatings
used
agriculture.
Firstly,
it
focuses
on
policy
and
regulatory
actions
taken
at
a
global
level.
There
is
no
consensus
within
scientific
community
definition
microplastic
and,
more
generally,
classification
plastic
debris.
Nevertheless,
several
decision
schemes
have
been
proposed
an
attempt
to
define
notion
microplastics.
The
different
criteria
relevant
this
definition,
such
as
size,
physical
state,
chemical
structure,
origin,
persistence
microplastics,
are
discussed,
with
comparison
being
made
between
REACH
regulation
literature.
Seed
production
processing
also
functions
explained
order
gain
better
understanding
properties
be
considered
substitution
strategy
for
currently
main
challenges
multiple;
substitutes
must
provide
same
performance
microplastics:
(i)
improving
adherence
treatment
seed,
(ii)
distributing
evenly
over
(iii)
reducing
amount
dust-off
when
handling
treated
(iv)
flowability,
which
particularly
important
during
sowing
stage,
all
while
preserving
physiological
seed.
Substitute
polymers
according
desired
functional
properties:
two
families
biopolymers
were
identified
literature:
polysaccharides
proteins.
Among
them,
13
6
polymers,
respectively,
complied
regulation,
demonstrating
adhesion,
dust
reduction
performances,
preservation
quality
particular.
work
aims
guide
future
studies
coatings,
highlight
research
needs
area.
It
based
analysis
discussion
literature,
identifying
listing
potential
substitutes.
Language: Английский
Emissions of water-soluble polymers from household products to the environment: a prioritization study
Environmental Toxicology and Chemistry,
Journal Year:
2025,
Volume and Issue:
44(2), P. 563 - 588
Published: Jan. 6, 2025
Water-soluble
polymers
(WSPs)
are
widely
used
in
household
products,
including
cleaning
and
personal
care
products.
However,
unlike
insoluble
plastic
polymers,
the
environmental
risks
of
WSPs
poorly
understood.
This
study
was
performed
to
identify
use
characterize
their
emissions
environment
key
data
gaps
for
prioritization.
An
inventory
developed
these
were
broadly
grouped
based
on
structure.
Information
from
patents
combined
with
literature
estimate
down-the-drain
each
polymer.
For
highest
emissions,
predicted
concentrations
surface
water
soil
estimated.
A
total
339
individual
identified
categorized
into
26
groups.
The
sodium
laureth
sulfate
(1.6-3.4
g
capita-1
day-1),
styrene/acrylates
copolymer
(0.1-0.8
monoethanolamine-laureth
(0.4-0.8
day-1).
analysis
available
fate
ecotoxicity
30
high-emission
indicated
that
several
lacking
data.
In
particular,
no
found
polyethylene
glycol/vinyl
acetate,
polyquaterniums
polyol
ethoxylate
esters
has
been
understudied,
particularly
light
hazard
potential.
a
lack
reporting
polymer
properties
hinders
analysis.
We
recommend
increased
transparency
identities
moving
forward
as
well
experimental
work
determining
fate,
removal,
prioritized
Language: Английский
Microplastics and organic contaminants
Elsevier eBooks,
Journal Year:
2025,
Volume and Issue:
unknown, P. 327 - 365
Published: Jan. 1, 2025
Language: Английский
Plastic problem solved? Environmental implications of synthetic hydrophilic polymers across ecosystem boundaries
TrAC Trends in Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
181, P. 118000 - 118000
Published: Oct. 9, 2024
Language: Английский
Mesoscopic Simulation on Centrifugal Melt Electrospinning of Polyetherimide and Polyarylethernitrile
Journal of Composites Science,
Journal Year:
2024,
Volume and Issue:
8(11), P. 480 - 480
Published: Nov. 19, 2024
Polyetherimide
(PEI)
and
polyarylethernitrile
(PEN)
are
high–performance
materials
for
various
applications.
By
optimizing
their
fiber
morphology,
performance
can
be
further
enhanced,
leading
to
an
expanded
range
of
applications
in
carbon
composites.
However,
developing
processes
stable
efficient
production
remains
challenging.
This
research
aims
simulate
the
preparation
ultrafine
PEI
or
PEN
fibers
using
electrospinning.
A
mesoscopic
simulation
model
centrifugal
melt
electrospinning
was
constructed
compare
analyze
changes
molecular
chain
orientation,
unfolding,
diameter,
yield
under
high-voltage
electrostatic
fields.
The
results
showed
that
temperature
electric
field
force
had
a
particular
impact
on
diameter
fibers.
Changes
rotational
speed
negligible
effects
both
Additionally,
due
different
structures,
PEN,
which
have
lengths,
exhibit
varied
spinning
trends.
study
established
dynamic
foundation
producing
high-performance
provided
theoretical
guidance
future
experiments.
Language: Английский