Study of Construction of Innovative Barite/Waterborne Polyurethane/Low-Density Polyethylene Composites for Enhanced X-Ray Shielding Performance
Polymers,
Год журнала:
2025,
Номер
17(4), С. 451 - 451
Опубликована: Фев. 8, 2025
X-rays’
high-energy
nature
poses
risks
to
human
health.
Traditional
X-ray
shielding
materials
often
contain
toxic
lead
and
have
drawbacks
like
bulkiness
rigidity.
Consequently,
there
is
an
increasing
need
develop
lightweight,
non-toxic,
flexible,
efficient
materials.
In
this
study,
we
modified
barite
with
waterborne
polyurethane
(WPU)
systematically
investigated
the
effects
of
WPU
on
barite’s
properties.
The
modification
not
only
reduced
tendency
(B)
agglomerate
but
also
enhanced
its
compatibility
polymers,
thereby
significantly
improving
mechanical
properties
LDPE/WPU-B
composites.
Compared
unmodified
in
LDPE/B
composites,
tensile
flexural
modulus
composites
increased
by
22.31%
29.64%,
respectively.
With
20%
WPU-modified
barite,
radiation
efficiency
5%.
When
WPU-B
content
reached
40%,
composite
exceeded
90%
for
tube
voltages
ranging
from
60
kV
120
kV,
achieving
a
equivalent
0.38
mmPb
at
100
kV.
This
novel
has
great
potential
low-dose
applications.
Язык: Английский
PEEK Nanocomposites Containing Bi2O3 or BaSO4: A Complete Determination of X‐Ray Shielding, Mechanical, Thermal, and Wear Characteristics Under Harsh Radiation Conditions
Polymer Composites,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 27, 2025
ABSTRACT
With
growing
demands
for
enhanced
safety,
the
development
of
X‐ray
shielding
materials
with
superior
attenuation,
mechanical
strength,
and
improved
resistance
to
radiation‐induced
degradation
has
become
crucial.
Among
polymeric
materials,
poly(ether
ether
ketone)
(PEEK)
exhibits
exceptional
radiation
resistance,
which
extends
its
operational
lifespan
minimizes
premature
failures
in
protective
systems.
Therefore,
this
work
evaluated
PEEK
nanocomposites
containing
0–60
wt%
bismuth
oxide
(Bi
2
O
3
)
or
barium
sulfate
(BaSO
4
their
potential
applications
under
harsh
conditions.
The
results
indicated
that
incorporating
Bi
BaSO
substantially
increased
attenuation
(20–60‐fold
improvement),
surface
hardness,
density
compared
pristine
PEEK.
Additionally,
after
exposure
500
kGy
gamma
irradiation,
only
minimal
changes
were
observed
tensile
thermal
stability,
density,
indicating
durability
Although
impact
strength
wear
slightly
declined
was
notably
lower
nanocomposites,
suggesting
acted
as
effective
suppressors
due
high
protection.
These
findings
highlighted
next‐generation
offering
protection
stability
high‐dose
irradiation
conventional
thereby
making
them
promising
candidates
advanced
Язык: Английский