Applied Sciences,
Год журнала:
2025,
Номер
15(11), С. 6039 - 6039
Опубликована: Май 27, 2025
Food
contact
polymers
require
thermochromic
pigments
to
provide
temperature-sensitive
visual
cues
for
consumer
safety
and
product
integrity.
However,
their
susceptibility
ultraviolet
(UV)
degradation
limits
long-term
application.
This
study
investigates
the
UV
resistance
of
food-grade
polypropylene
blends
under
simulated
indoor
outdoor
exposure
500
1000
h.
Visual
properties,
colorimetric
(CIE
L*a*b*)
measurements,
mechanical
testing
(tensile
impact),
mass
variation
analysis
were
performed
assess
photostability
material
Exposure
led
progressive
discoloration
(ΔE*ab
up
34.07)
significant
deterioration.
Tensile
strain
at
break
decreased
by
48.67%,
notched
impact
strength
dropped
44.15%
after
h
exposure.
No
measurable
loss
occurred,
indicating
was
confined
surface-level
oxidation
rather
than
bulk
erosion
or
leaching.
These
findings
highlight
need
optimal
pigment
loading
stabilization
extend
shelf
life
food
packaging
materials
in
light-exposed
storage
retail
environments.
The
offers
a
framework
improving
reliability
smart
industry.
work
uniquely
integrates
optical,
mechanical,
analyses
evaluate
extended
UVA
Photochemical & Photobiological Sciences,
Год журнала:
2023,
Номер
22(5), С. 1177 - 1202
Опубликована: Апрель 11, 2023
Abstract
The
deleterious
effects
of
solar
ultraviolet
(UV)
radiation
on
construction
materials,
especially
wood
and
plastics,
the
consequent
impacts
their
useful
lifetimes,
are
well
documented
in
scientific
literature.
Any
future
increase
UV
ambient
temperature
due
to
climate
change
will
therefore
shorten
service
lifetimes
which
require
higher
levels
stabilisation
or
other
interventions
maintain
at
present
levels.
implementation
Montreal
Protocol
its
amendments
substances
that
deplete
ozone
layer,
controls
UV-B
received
Earth.
This
current
quadrennial
assessment
provides
a
comprehensive
update
durability
natural
synthetic
as
recent
innovations
better
stabilising
materials
against
radiation-induced
damage.
Pertinent
emerging
technologies
for
plastics
used
construction,
composite
textile
fibres,
comfort
fabric,
photovoltaic
addressed
detail.
Also
trends
technology
designed
sustainability
via
replacing
toxic,
unsustainable,
legacy
additives
with
‘greener’
benign
substitutes
may
indirectly
affect
stability
redesigned
materials.
An
class
efficient
photostabilisers
nanoscale
particles
include
oxide
fillers
nanocarbons
high-performance
composites,
provide
good
They
also
allow
design
UV-shielding
fabric
impressive
protection
factors.
environmental
issue
related
photodegradation
is
generation
ubiquitous
micro-scale
from
plastic
litter
exposed
radiation.
Graphical
abstract
Environmental Pollution,
Год журнала:
2025,
Номер
368, С. 125700 - 125700
Опубликована: Янв. 15, 2025
Plastics
play
a
crucial
role
in
modern
life,
but
improper
use
and
disposal
have
resulted
microplastics
becoming
widespread
the
environment,
raising
significant
concerns
about
both
environment
human
health.
Extensive
research
has
explored
transformation
mechanisms,
bioaccumulation,
ecological
impacts,
health
risks
associated
with
microplastics.
The
present
review
first
analyzes
migration,
transformation,
degradation
pathways
of
on
global
scale,
then
synthesizes
current
knowledge
types,
sources,
migration
soil,
atmosphere,
aquatic
environments,
emphasizing
mechanisms
like
photo-aging
microbial
degradation,
detailing
their
impacts.
Additionally,
this
examines
gaps
identifies
critical
areas
needing
further
study,
such
as
key
control
points
microplastic
processes
underlying
to
populations.
aim
is
provide
comprehensive
reference
for
advancing
pollution
control,
protection
efforts,
risk
assessment
frameworks.
Polymers,
Год журнала:
2024,
Номер
16(5), С. 689 - 689
Опубликована: Март 3, 2024
Polymeric
materials
degrade
as
they
react
with
environmental
conditions
such
temperature,
light,
and
humidity.
Electromagnetic
radiation
from
the
Sun’s
ultraviolet
rays
weakens
mechanical
properties
of
polymers,
causing
them
to
degrade.
This
study
examined
phenomenon
polymer
aging
due
exposure
radiation.
The
three
specific
objectives,
including
key
theories
explaining
(UV)
radiation’s
impact
on
decomposition,
underlying
testing
procedures
for
determining
polymeric
materials,
appraising
current
technical
methods
enhancing
UV
resistance
polymers.
utilized
a
literature
review
methodology
understand
effect
electromagnetic
Thus,
concluded
that
using
additives
absorbers
polymers
composites
can
elongate
lifespan
by
shielding
effects
findings
suggest
thermal
contribute
degradation
breaking
down
their
physical
chemical
bonds.
Thermal
oxidative
environments
accelerate
presence
temperatures
foster
quicker
plastics.
Polymers,
Год журнала:
2024,
Номер
16(8), С. 1104 - 1104
Опубликована: Апрель 16, 2024
The
increased
use
of
plastics
in
industrial
and
agricultural
applications
has
led
to
high
levels
pollution
worldwide
is
a
significant
challenge.
To
address
this
plastic
pollution,
conventional
methods
such
as
landfills
incineration
are
used,
leading
further
challenges
the
generation
greenhouse
gas
emissions.
Therefore,
increasing
interest
been
directed
identifying
alternative
dispose
waste
from
agriculture.
novelty
current
research
arose
lack
critical
reviews
on
how
3-Dimensional
(3D)
printing
was
adopted
for
recycling
plastics,
its
application
production
specific
benefits,
disadvantages,
limitations
plastics.
review
paper
offers
novel
insights
regarding
3D
including
Fused
Particle
Fabrication
(FPF),
Hot
Melt
Extrusion
(HME),
Deposition
Modelling
(FDM)
make
filaments
However,
were
local
setups
where
only
small
quantities
raw
materials
considered.
Data
collected
using
systematic
involving
39
studies.
Findings
showed
that
Polylactic
Acid
(PLA),
Acrylonitrile
Butadiene
Styrene
(ABS),
Polyethylene
Terephthalate
(PET),
High-Density
(HDPE),
which
found
have
properties
comparable
those
virgin
plastic,
suggesting
viability
managing
pollution.
also
associated
with
methods;
3D-printed
deteriorated
rapidly
under
Ultraviolet
(UV)
light
non-biodegradable,
posing
risks
UV
stabilization
helps
reduce
deterioration,
thus
longevity
reducing
disposal.
Future
directions
emphasize
deterioration
their
addition
stability.
