ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 26, 2024
Chemical
depolymerization
of
fully
cured
epoxy
resin
with
20%
reactive
modifier
was
successfully
performed
via
a
solvent-assisted
solvolysis
process
into
low
molecular
weight
recyclable
oligomers
(RO)
at
240
°C
in
pressure
vessel
650
psi
for
4
h.
The
thermoset
depolymerized
transparent
brown
viscous
fluid
higher
viscosity
than
the
uncured
approximately
93%
yield.
Different
concentrations
RO
were
homogeneously
mixed
pure
resin,
and
their
curing
kinetics,
viscosity,
FTIR,
mechanical
properties,
DMA,
cross-link
density
investigated.
kinetics
modified
(baseline)
its
mixtures
different
investigated
under
both
isothermal
nonisothermal
conditions
using
small
amplitude
oscillatory
shear
flow.
elastic
moduli
(G′
G″),
complex
(η*),
tan
δ
values
evaluated
times
temperatures.
G′,
G″,
η*
increased
dramatically,
while
decreased
strongly
by
several
orders
magnitude
gel
point.
zero-shear
(η0)
determined
from
angular
frequency
dependent
on
based
Cross
model
blend
compositions
liquid
state
before
curing.
composition
dependence
η0
showed
positive
deviation
linear
mixing
rule
well
described
Lecyar
model.
apparent
activation
energy
(Ea)
also
according
to
Arrhenius
equation
found
be
46
±
2
kJ/mol
regardless
contents
RO.
For
all
blends
up
40
wt
%
RO,
only
one
peak
systematically
shifting
lower
temperatures
increasing
content
observed
DMA
measurements,
indicating
that
are
miscible
Radiochimica Acta,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 6, 2025
Abstract
This
study
focuses
on
enhancing
the
characteristics
of
carboxymethylcellulose
(CMC)
and
polyvinyl
alcohol
(PVA)
bio-based
films
through
integration
e-beam
ionizing
radiation
nano-clay.
CMC-PVA
blends
with
varying
amounts
nano-clay
were
prepared
subjected
to
irradiation
at
different
doses.
The
resulting
analyzed
for
properties
such
as
water
absorption,
vapor
transmission
rate
(WVTR),
thermal
stability,
mechanical
strength,
structural
using
Fourier
Transform
Infrared
Spectroscopy
(FTIR),
X-ray
Diffraction
(XRD),
Thermogravimetric
Analysis
(TGA),
Atomic
Force
Microscopy
(AFM).
findings
revealed
that
optimal
formulation
consisted
3
wt.%
an
dose
20
kGy,
which
significantly
reduced
absorption
WVTR.
WVTR
this
was
measured
60.2
±
2.2
×
10⁻
2
g/cm
/day.
Additionally,
TGA
results
indicated
similar
behavior
both
CMC-PVA/nano-clay
films,
suggesting
a
physical
interaction
between
polymer
matrix.
work
demonstrates
controlled
incorporation
can
produce
suitable
low-cost
packaging
applications.
Applied Sciences,
Год журнала:
2025,
Номер
15(3), С. 1008 - 1008
Опубликована: Янв. 21, 2025
The
valorization
of
agri-food
waste
is
a
pivotal
component
in
developing
the
circular
economy,
wherein
given
second
life
through
various
conversion
technologies.
This
review
aims
to
provide
an
overview
current
state
knowledge
on
waste,
with
particular
focus
volatile
fatty
acids
(VFAs)
and
subsequent
bioplastics
production.
To
this
end,
comprehensive
literature
search
was
conducted
using
specialist
bibliographic
databases.
study
primarily
focuses
reviewing
biological
production
PHBV
(poly(3-hydroxybutyrate-co-3-hydroxyvalerate)),
type
PHA,
due
its
relevance
as
substitute
for
fossil-based
plastics.
Significant
attention
has
been
directed
toward
exploring
potential
wastes,
such
whey,
potato
peelings,
brewery
bagasse,
raw
materials
their
transformation
into
tailor-made
VFA
solution,
rich
valeric
propionic
acids.
Additionally,
existing
operational
strategies
co-treatments
have
reviewed.
produced
VFAs
present
multiple
applications,
including
single-cell
oils,
Omega-3-rich
different
types
PHA.
Factors
influencing
bio-polymerization
PHBV,
substrate,
operating
conditions
(pH
retention
time),
presence
specific
microorganisms,
also
Due
physicochemical
properties,
applications
sectors
agriculture
packaging.
concludes
that
transforming
integrate
environmental
economic
benefits
within
bioeconomy
model,
fostering
technological
innovation
sustainable
use
resources.
Polymers,
Год журнала:
2025,
Номер
17(2), С. 177 - 177
Опубликована: Янв. 13, 2025
In
the
rapidly
evolving
biobased
materials
innovation
landscape,
our
research
identifies
key
players
and
explores
evolutionary
perspective
of
innovation,
offering
insights
into
promising
areas
to
be
further
developed
by
material
scientists
in
search
exploiting
their
knowledge
novel
applications.
Despite
crucial
role
these
promoting
sustainable
production
consumption
models,
systematic
studies
on
current
terrain
are
lacking,
leaving
gaps
understanding
players,
emerging
technologies,
market
trends.
To
address
this
void,
we
focused
examining
patents
related
monomers
polymers,
aiming
describe
strategies
business
dynamics
leading
assignees.
Embedded
within
European
Sustainable
BIO-based
nanoMAterials
Community
(BIOMAC)
project,
a
Horizon
2020
initiative,
leverages
unique
framework
dedicated
advancing
specifically
emphasizing
readiness
materials.
We
implemented
multi-stage
strategy,
prioritizing
validated
keyword
queries
ensure
superior
quality
reliability
collected
data.
understand
primary
contributors
landscapes,
conducted
an
in-depth
analysis
employed
companies.
Findings
from
ORBIT
platform
highlighted
remarkable
increase
patent
publications
past
decade,
with
China
standing
out
as
hub
signaling
strong
focus
development
Our
technological
advancements
identify
specific
potential
for
development.
By
analyzing
trends
five
industries,
pinpoint
opportunities
innovative
solutions
commercially
exploited
while
ensuring
compliance
intellectual
property
rights
freedom-to-operate
framework.
Journal of Advances in Biology & Biotechnology,
Год журнала:
2025,
Номер
28(1), С. 230 - 248
Опубликована: Янв. 11, 2025
The
increasing
prevalence
of
plant
diseases
in
tropical
agriculture,
driven
by
climate
change,
pathogen
resistance,
and
unsustainable
pesticide
use,
necessitates
the
development
eco-friendly
effective
disease
management
strategies.
Ginger
essential
oil
(GEO),
derived
from
Zingiber
officinale,
is
a
natural
antimicrobial
agent
with
proven
efficacy
against
wide
range
pathogens,
including
bacteria,
fungi,
viruses.
Its
bioactive
compounds,
such
as
gingerols,
shogaols,
zingiberene,
exhibit
multiple
modes
action,
making
GEO
promising
alternative
to
synthetic
pesticides.
volatility,
short
shelf
life,
limited
solubility
under
field
conditions
restrict
its
direct
application
agriculture.
Nanotechnology
offers
transformative
solution
these
limitations
encapsulating
advanced
nanocarriers,
liposomes,
nanoemulsions,
polymeric
nanoparticles,
which
improve
stability,
bioavailability,
controlled
release.
Nanoformulated
has
demonstrated
enhanced
both
laboratory
studies,
outperforming
pure
agrochemicals
controlling
pathogens
like
Fusarium
oxysporum,
Alternaria
alternata,
Xanthomonas
campestris.
nanoformulations
are
biodegradable
pose
minimal
risks
non-target
organisms
environment,
aligning
principles
sustainable
Despite
outcomes,
challenges
high
production
costs,
regulatory
uncertainties,
farmer
awareness
hinder
large-scale
implementation
nanotechnology.
It
should
focus
on
optimizing
nanoformulation
techniques,
exploring
synergistic
combinations
other
antimicrobials,
integrating
into
integrated
pest
(IPM)
Collaboration
between
researchers,
policymakers,
farmers
overcome
adoption
barriers
ensure
deployment.
By
addressing
challenges,
GEO-based
nanotechnology
potential
revolutionize
providing
sustainable,
safe,
innovative
for
managing
while
reducing
dependency
harmful
chemical
Eng—Advances in Engineering,
Год журнала:
2025,
Номер
6(1), С. 17 - 17
Опубликована: Янв. 15, 2025
This
paper
explores
the
historical
development
of
conventional
plastics,
tracing
their
evolution
from
early
forms
to
pervasive
use
in
modern
society.
Its
observations
include
rise
mass
plastic
production
during
World
War
II
and
post-war
development,
showcasing
plastics’
economic
societal
impact.
The
environmental
repercussions
pollution
have
led
increased
global
awareness
calls
for
sustainable
alternatives.
emergence
bioplastics
is
investigated,
including
classification,
properties,
applications,
challenges
scaling.
emphasises
urgency
adopting
a
future
discusses
efforts
towards
homogenisation
standardisation
across
markets.
ABSTRACT
Flexible
phase
change
composites
(FPCCs)
have
garnered
significant
attention
for
their
ability
to
combine
high
latent
heat
capacity
with
mechanical
flexibility.
This
combination
enables
advanced
thermal
management
in
emerging
fields
such
as
flexible
electronics,
soft
robotics,
and
wearable
technologies.
Traditional
materials
(PCMs)
excel
energy
absorption
release.
However,
rigidity
limits
applicability
the
sectors
above.
Existing
reviews
largely
focus
on
encapsulation
methods
traditional
PCM
applications,
leaving
a
gap
literature
concerning
flexibility
enhancement
strategies
FPCC‐specific
applications.
review
seeks
address
this
by
presenting
comprehensive
timeline
of
FPCC
development,
elucidating
principles
capacity,
systematically
reviewing
recent
advancements
field.
Emphasis
is
placed
design
at
both
structural
level,
fiber
foam
configurations,
including
physical
blending
molecular
engineering.
Performance
comparisons
are
provided,
evaluating
FPCCs
terms
storage
Furthermore,
explores
diverse
applications
storage,
transfer,
conversion,
release,
underscoring
potential
cutting‐edge
sectors.
By
highlighting
FPCCs'
versatility
interdisciplinary
aims
inspire
further
research
integration
into
domains
requiring
solutions.
Polysaccharides,
Год журнала:
2025,
Номер
6(2), С. 27 - 27
Опубликована: Апрель 2, 2025
New
sustainable
materials
have
been
developed
to
replace
conventional
plastics
obtained
from
non-renewable
sources.
In
this
study,
cellulose
fibres
Posidonia
oceanica
(PO)
were
by
applying
subcritical
water
extraction
and
bleaching
with
hydrogen
peroxide
or
sodium
chlorite.
The
PO
used
obtain
films,
chitosan–cellulose
composites,
PLA–cellulose
laminates.
These
films
characterised
as
their
optical
properties,
mechanical
performance,
oxygen
vapour
permeability,
thermal
stability,
microstructure.
exhibited
low
resistance,
different
colouration
depending
on
the
degree
of
delignification.
composites
had
lower
strength
than
pure
chitosan
films.
a
similar,
but
attenuated,
effect
when
laminated
PLA
layers.
improved
barrier
capacity
although
only
occurred
in
laminates
for
purified
no
case
did
improve
compared
polymers.
stability
was
not
notably
altered
blending
effect,
thus
reflecting
absence
significant
interactions
between
polymer.
However,
there
is
need
functionality
waste
incorporation
fillers
biodegradable
food
packaging
materials.
