Critical Reviews in Environmental Science and Technology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 24
Published: Jan. 3, 2025
Biodegradable
plastics
show
promise
in
addressing
traditional
plastic
waste
issues.
However,
most
commercially
available
biodegradable
products
are
blended/composite
materials,
combining
polymers
with
other
polymers,
fillers
and
additives.
Non-reactive
functional
additives,
such
as
plasticizers
stabilizers,
raise
concerns
due
to
potential
leaching
well
release
on
degradation.
Thus,
understanding
how
these
additives
affect
biodegradation
rates
processes
is
crucial,
a
comprehensive
overview
missing
the
literature.
This
review
highlights
that
localized
additive
concentration
levels
adjacent
materials
could,
at
least
for
time,
exceed
threshold
concentrations
substantial
impacts
microbial
activities,
especially
slow
transport
media
soil
compost.
Of
literature,
it
concerning
only
small
fraction
reported
continuous
quantitative
data
sampling
frequency
duration
adequate
synthesis.
In
those
studies,
presence
of
resulted
an
extended
lag
time
compared
virgin
polymer.
Interestingly,
also
typically
increased
rate
following
this
initial
time.
Overall,
variation
was
observed
half-life
polymer/additive
blends
when
considering
both
rate.
The
likely
key
controlling
factors
dictating
impact
include
leaching,
alterations
polymer
properties
induced
by
their
intrinsic
characteristics
themselves.
Future
life
cycle
analysis
environmental
assessments
new
bioplastic
must
consider
influence
ACS Applied Polymer Materials,
Journal Year:
2022,
Volume and Issue:
4(5), P. 3608 - 3617
Published: April 5, 2022
Polylactide
(PLA)
is
a
promising
biosourced
and
biodegradable
polymer
substitute
for
traditional
petroleum-based
products.
Despite
its
recognized
potential,
widespread
adoption
restricted
by
brittleness
low
ductility
and,
thus,
to
enhance
material
properties,
plasticizers
must
be
blended
with
PLA
lower
the
glass
transition
temperature
(Tg)
impart
flexibility
into
blend.
As
such,
this
work
focused
on
synthesis
of
family
applications
in
flexible
food
packaging
using
glycerol,
succinic
anhydride,
alcohols
varying
chain
lengths.
The
effect
chemical
structure
plasticization
performance,
migration,
blend
morphology,
toxicity
was
evaluated
compared
commercial
plasticizer
acetyl
tributyl
citrate.
Plasticizer/PLA
blends
were
prepared
solvent-casting
as
well
melt-mixing
produce
thin
films
bulk
specimens.
At
loadings
20
wt
%,
improved
(up
435%
elongation)
observed
glycerol
relative
neat
(6%
elongation),
while
Tg's
reduced
up
45
°C
from
that
(Tg
∼
60
°C).
Phase
morphologies
scanning
electron
microscopy
showed
good
incorporation
matrix.
Leaching
behavior
plasticized
different
simulants
composed
branched
or
longer
alkyl
chains
produced
two-
sixfold
migration
rates
those
short
chains.
Finally,
candidates
shown
nontoxic
did
not
impact
HepG2
cell
viability
over
period
7
days
an
vitro
mammalian
assay.
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
880, P. 163258 - 163258
Published: April 3, 2023
Despite
a
theoretical
link
between
plastic
and
plasticiser
occurrence
in
the
terrestrial
environment,
there
are
few
empirical
studies
of
relationship
these
contaminants
soils.
We
carried
out
field
study
to
assess
co-occurrence
waste,
legacy
emerging
plasticisers
UK
soils
(n
=
19)
from
various
land
uses
(woodlands,
urban
roadsides,
parklands,
landfill-associated).
Surface
plastics
soil
microplastics
were
quantified
characterised
using
ATR-FTIR
μ-FTIR.
Eight
(phthalate)
three
(adipate,
citrate,
trimellitate)
GC–MS.
found
at
higher
prevalence
landfill-associated
roadside
sites,
with
levels
significantly
(2
orders
magnitude)
greater
than
woodlands.
Microplastics
detected
(mean
12.3
particles
g−1
dw),
(17.3
dw)
parkland
(15.7
soils,
but
not
woodland
The
most
commonly
polymers
polyethene,
polypropene
polystyrene.
Mean
∑plasticiser
concentration
(3111
ng
was
woodlands
(134
dw).
No
significant
difference
(318
(193
Di-n-butyl
phthalate
(94.7%
detection
frequency)
trioctyl
trimellitate
(89.5%)
plasticisers,
diethylhexyl
(493
di-iso-decyl
(96.7
present
highest
concentrations.
concentrations
correlated
surface
(R2
0.23),
microplastic
Whilst
litter
seems
fundamental
source
mechanisms
such
as
airborne
transport
areas
may
be
important.
Based
on
data
this
study,
phthalates
remain
dominant
already
widespread,
reflected
by
their
presence
all
studied.
Water Emerging Contaminants & Nanoplastics,
Journal Year:
2024,
Volume and Issue:
3(1)
Published: Jan. 4, 2024
Plastic
pollutants
have
emerged
as
one
of
the
biggest
environmental
concerns
in
recent
times.
The
potential
hazards
arise
from
presence
additives
within
microplastics
(MPs),
which
can
leach
into
environment.
These
serve
a
multitude
purposes,
resulting
diverse
range
compounds
used
plastic
formulation.
elements
are
commonly
integrated
molding
processes
to
enhance
usability,
optimize
material
performance,
and
reduce
costs.
Throughout
lifespan
plastics,
there
exists
for
release
unpolymerized
monomers
(sometimes
more
toxic)
that
not
chemically
bound
polymers;
these
pose
risks
environment
and,
ultimately,
human
well-being.
Assessing
impact
MPs
on
life
requires
determining
precise
chemical
composition
level
exposure
additives.
Phthalates
flame
retardants
currently
focus
extensive
examination
due
their
widespread
Following
closely
behind
stabilizers
antioxidants,
also
undergoing
evaluation.
Chemical
like
hexabromocyclododecanes
(HBCDs)
polybrominated
diphenyl
ethers
(PBDEs)
possess
characteristics
such
persistence,
bioaccumulation,
toxicity.
understanding
ecotoxicological
implications
discharge
primary
materials
remains
limited
at
present.
current
state
issues
concerning
regulations
transparency
regarding
additive
chemicals
is
marked
by
significant
lack
openness
clarity.
It
paramount
thoroughly
comprehend
assess
ecosystems
face
leaching,
degradation,
eventual
fate
when
plastics
released