Polymers,
Journal Year:
2024,
Volume and Issue:
16(23), P. 3444 - 3444
Published: Dec. 9, 2024
This
study
explores
the
impact
of
three
bioadditives
derived
from
Alfalfa-biomass,
bio-ashes,
and
lyophilisates-on
natural
rubber
composites,
with
a
primary
focus
on
anti-aging
properties
lyophilisates.
Composite
samples
were
prepared
by
incorporating
these
into
analyzed
using
various
characterization
techniques
to
evaluate
mechanical,
thermal,
aging,
surface
properties.
The
results
highlight
promising
effects
lyophilisates,
significantly
enhancing
aging
resistance
rubber.
factor
was
closest
unity
among
all
systems.
Biomass
bio-ashes
also
examined,
offering
insights
their
influence
tensile
strength,
viscoelasticity,
wettability.
strength
values
almost
50%
higher
than
those
reference
sample
(8.5
MPa).
provides
detailed
understanding
interactions
between
rubber,
showcasing
potential
enhance
elastomer
performance.
These
findings
underscore
viability
Alfalfa-based
as
sustainable
options
for
improving
properties,
significant
implications
industrial
applications.
Macromolecular Rapid Communications,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 22, 2024
Abstract
An
atomic‐level
understanding
of
radiation‐induced
damage
in
simple
polymers
like
polyethylene
is
essential
for
determining
how
these
chemical
changes
can
alter
the
physical
and
mechanical
properties
important
technological
materials
such
as
plastics.
Ensembles
quantum
simulations
radiation
a
analog
are
performed
using
Density
Functional
Tight
Binding
method
to
help
bind
its
radiolysis
subsequent
degradation
function
dose.
Chemical
products
categorized
with
graph
theory
approach,
occurrence
rates
unsaturated
carbon
bond
formation,
crosslinking,
cycle
chain
scission
reactions,
out‐gassing
computed.
Statistical
correlations
between
product
pairs
show
significant
products,
though
decrease
increasing
atom
recoil
energy.
The
results
present
relatively
descriptors
possible
indications
network
rearrangements
middle
range
excitation
energies.
Ultimately,
work
provides
computational
framework
coupling
nonequilibrium
chemistry
potential
macro‐scale
that
aid
interpretation
future
experiments
on
plastic
materials.
Macromolecules,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 29, 2024
High-energy
radiation
could
accelerate
the
deterioration
of
polymer
properties,
greatly
increase
risk
equipment
failure,
and
reduce
polymer's
service
life.
Inhibition
macromolecular
chemical
changes
in
polymers
is
core
design
concept
for
conventional
resistance.
Herein,
we
report
a
novel
strategy
that
turns
reaction
into
repair
effect
self-reconnection
broken
chains,
thereby
improving
resistance
polyurethane
(PU)
concretely;
polybutadiene
(PB)
segments
are
evenly
introduced
PU
with
poly(propylene
glycol)
(PG)
to
prepare
containing
PB
PG
(PBG-PU).
During
irradiation,
radical
addition
coupling
reactions
PBG-PU
allow
molecular
chain
be
reconnected,
thus
continually
repairing
damage
on
PBG-PU.
Therefore,
elastomers
still
maintain
about
70%
strength
minimal
alterations
creep
properties
recovery
rates
after
300
KGy
radiation,
while
ordinary
have
completely
lost
their
original
properties.
The
combination
modification
method
hard
segment
can
even
boost
more
than
three
times,
showing
excellent
stability.
also
used
stability
ultrastructure
material
during
high-dose
gamma
ray
great
adjustability.
This
demonstrates
enormous
potential
achieving
long-term
application
nuclear
industry,
space
mission,
medicine
fields.
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(23), P. 10809 - 10809
Published: Nov. 22, 2024
Plasticulture
is
a
technique
widely
affirmed
throughout
Europe
and
the
rest
of
world
that
employs
plastic
material
for
protecting
agricultural
cultivations,
e.g.,
soil
mulching,
low/middle
tunnel
covering,
greenhouse
farming.
Because
their
effects
on
sustainability
production,
these
materials
present
serious
environmental
drawbacks.
Even
if
recycling
consolidated
technical
solution,
several
obstacles
hinder
mechanical
film
used
in
plasticulture.
Mostly,
degradation
its
characteristics,
due
to
aging
simultaneous
contamination
with
agrochemicals
fighting
plant
disease
ensuring
crop
health,
plays
major
hampering
role.
In
paper,
results
laboratory
tests
PE-LD
artificially
aged
different
lengths
time
treated
two
(fungicide
anti-aphid),
are
presented.
The
resulted
considerable
reduction
properties
usage
phase
even
samples
underwent
twofold
spraying,
slower
degradative
kinetics
were
observed.
conclusion,
based
also
measured
changes
Carbonyl
Index
value,
it
doubtful
this
would
be
included
process.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(23), P. 3444 - 3444
Published: Dec. 9, 2024
This
study
explores
the
impact
of
three
bioadditives
derived
from
Alfalfa-biomass,
bio-ashes,
and
lyophilisates-on
natural
rubber
composites,
with
a
primary
focus
on
anti-aging
properties
lyophilisates.
Composite
samples
were
prepared
by
incorporating
these
into
analyzed
using
various
characterization
techniques
to
evaluate
mechanical,
thermal,
aging,
surface
properties.
The
results
highlight
promising
effects
lyophilisates,
significantly
enhancing
aging
resistance
rubber.
factor
was
closest
unity
among
all
systems.
Biomass
bio-ashes
also
examined,
offering
insights
their
influence
tensile
strength,
viscoelasticity,
wettability.
strength
values
almost
50%
higher
than
those
reference
sample
(8.5
MPa).
provides
detailed
understanding
interactions
between
rubber,
showcasing
potential
enhance
elastomer
performance.
These
findings
underscore
viability
Alfalfa-based
as
sustainable
options
for
improving
properties,
significant
implications
industrial
applications.
