Polystyrene
(PS)
is
an
extremely
stable
polymer
with
relatively
high
molecular
weight
and
a
strong
hydrophobic
character
that
makes
it
highly
resistant
to
biodegradation.
In
this
study,
PS
was
subjected
biodegradation
tests
by
Tenebrio
Molitor
(T.
Molitor)
Zophobas
Morio
(Z.
Morio)
larvae.
Specifically,
six
different
experimental
diets
were
compared:
(i)
T.
fed
bran;
(ii)
only
PS;
(iii)
treated
H2O2;
(iv)
Z.
(v)
(vi)
H2O2.
Therefore,
the
mass
change
of
larvae
survival
rate
measured
periodically,
while
frass
collected
after
15
30
days
analyzed
analyses,
such
as
spectroscopy
(FTIR),
spectrometry
(molecular
polydispersity),
microscopy
(scanning
electron
observations).
The
obtained
results
suggest
in
case
larvae,
feeding
on
bran
showed
highest
~94
%
at
days,
exhibited
eating
PS-H2O2.
Although
not
strongly
pronounced,
Mw
Mn
both
decreased
over
suggesting
Ps
Finally,
morphological
analysis
shows
samples
isolated
from
completely
different,
rough
irregularly
carved
surface
structures,
comparison
before
Revista Politécnica,
Journal Year:
2024,
Volume and Issue:
53(2), P. 7 - 16
Published: Jan. 1, 2024
El
plástico
es
ampliamente
utilizado
y
responsable
de
impactos
ambientales
negativos.
Tal
el
caso
del
poliestireno
expandido
(EPS),
que
presenta
desafíos
revalorización
por
su
baja
densidad.
Aunque
ciertas
larvas
insecto,
como
tenebrio
molitor,
han
demostrado
la
capacidad
mineralizar
plásticos,
insecticultura
estos
aún
se
enfoca
en
obtener
proteína
sostenible
biofertilizante.
En
este
estudio,
investiga
influencia
una
dieta
EPS
desarrollo
larval
T.
molitor
durante
6
meses,
examina
cómo
afecta
volumen
biofertilizante
recolectado
lapso.
Se
desarrollaron
ensayos
con
tres
dietas,
realizando
mediciones
recolección
material
manera
periódica.
Los
resultados
indican
las
alimentadas
un
sustrato
combinado,
así
aquellas
orgánica,
demuestran
tasas
supervivencia
hasta
66%.
La
longitud
final
inferior
inorgánica
(112mm),
otras
dietas
superan
los
162
mm.
Las
no
progresaron
a
pupa,
demostraron
Factor
Conversión
Alimento
desalentador
(3,87)
produjeron
menor
cantidad
frass/biofertilizante
(1,28g),
comparación
combinada
registró
5,11g.
datos
sugieren
entomoremediación
plástica
funciona
óptimamente
si
cría
combinado
elementos
orgánicos.
Dicha
condición
solo
produce
positivos,
sino
alinea
principios
economía
circular.
consecuencia,
demuestra
ideal
para
abordarla
opción
tratamiento
residuos
EPS.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(16), P. 2280 - 2280
Published: Aug. 11, 2024
Amid
the
rapid
development
of
modern
society,
widespread
use
plastic
products
has
led
to
significant
environmental
issues,
including
accumulation
non-degradable
waste
and
extensive
consumption
non-renewable
resources.
Developing
healable,
recyclable,
bio-based
materials
from
abundant
renewable
resources
using
diverse
dynamic
interactions
attracts
increasing
global
attention.
However,
achieving
a
good
balance
between
self-healing
capacity
mechanical
performance,
such
as
strength
toughness,
remains
challenging.
In
our
study,
we
address
this
challenge
by
developing
new
type
network
epoxidized
soybean
oil
(ESO)
poly(butylene
adipate-co-terephthalate)
(PBAT)
with
toughness.
For
synthetic
strategy,
thiol-epoxy
click
reaction
was
conducted
functionalize
ESO
thiol
hydroxyl
groups.
Subsequently,
curing
isocyanates
generated
thiourethane
urethane
bonds
different
bonding
energies
in
networks
reach
trade-off
features
properties;
amongst
these,
lower
energy
provide
features,
while
higher
ensure
properties.
The
incorporation
flexible
PBAT
segments
form
rational
multi-phase
structure
crystalline
domains
further
enhanced
products.
A
typical
sample,
OTSO100-PBAT100,
exhibited
tensile
33.2
MPa
an
elongation
at
break
1238%,
demonstrating
healing
desirable
performance.
This
study
provides
promising
solution
contemporary
challenges
that
combine
repair
It
addresses
specific
gap
materials,
wide
range
applications.
