Fire,
Journal Year:
2024,
Volume and Issue:
7(8), P. 284 - 284
Published: Aug. 14, 2024
The
intumescent
flame
retardant
(IFR)
technique
is
an
alternative
to
halogen-based
retardants
for
reducing
fire
hazards
in
polymers.
However,
IFR
has
drawbacks
like
unsatisfactory
flame-retardant
efficiency
and
high
loading
requirements.
In
this
study,
MIL-125
(Ti-based
metal–organic
framework)
added
ABS/IFR
composites
improve
retardancy
reduce
smoke
emissions.
Thermogravimetric
analysis
(TGA)
results
indicate
that
combining
ammonium
polyphosphate
(APP)
expandable
graphite
(EG)
increases
charred
residue
slows
mass
loss
compared
with
the
original
ABS
resin.
ABS/IFR/MIL-125
system
stabilizes
char
layer,
serving
as
a
protective
shield
against
combustible
gases
during
combustion.
Additionally,
enhances
performance
microscale
combustion
calorimetry
(MCC)
flammability
testing.
tests
(UL-94,
limiting
oxygen
index
(LOI),
cone
calorimeter),
achieves
UL-94
V0
rating
highest
LOI
value
of
31.5%
±
0.1%.
Peak
heat
lease
rate
(PHRR)
values
calorimeter
are
reduced
by
72%
20
wt.%
additives,
production
decreases
53%
neat
ABS.
These
demonstrate
efficient
synergistic
effects
additives
improving
formation
stability
thereby
protecting
from
intense
burning.
Materials,
Journal Year:
2025,
Volume and Issue:
18(5), P. 984 - 984
Published: Feb. 24, 2025
Aluminum
hydroxide
(ATH)
is
an
environmentally
friendly
flame
retardant
widely
employed
in
polymers.
However,
the
high
loading
of
ATH,
due
to
its
limited
efficiency,
potentially
compromises
other
properties,
including
mechanical
properties.
This
work
explores
a
feasible
ball
milling
strategy
for
high-efficiency
ATH-based
retardants
(PPA-ATH
and
PPOA-ATH),
fabricated
by
employing
phenylphosphinic
acid
(PPA)
phenylphosphonic
(PPOA)
as
surface
modifiers
water
processing
solvent.
The
characterization
study
PPA-ATH
PPOA-ATH
demonstrates
that
effectively
reduces
their
particle
size,
enhances
specific
area,
improves
dispersibility
within
ethylene-vinyl
acetate
(EVA)
matrix.
exhibited
superior
capabilities
enhancing
thermal
stability
retardancy
EVA
composites
compared
PPA-ATH.
incorporation
resulted
retarding
temperature
at
50%
mass
loss
21
°C
increase
char
residue
34.5%
700
°C.
Furthermore,
PPOA
led
reductions
81.0%
peak
heat
release
rate,
48.1%
total
release,
73.7%
smoke
production
41.2%
neat
EVA.
green
modification
successfully
addresses
application
limitations
providing
method
fabrication.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(15), P. 2163 - 2163
Published: July 30, 2024
This
research
aims
to
explore
how
functionally
active
structures
affect
the
physical,
mechanical,
thermal,
and
fire-resistant
properties
of
elastomeric
compositions
using
ethylene-propylene-diene
rubber
as
a
base.
The
inclusion
aluminosilicate
microspheres,
microfibers,
phosphorus-boron-nitrogen-organic
modifier
in
these
creates
synergistic
effect,
enhancing
material's
heat-insulating
by
strengthening
coke
carbonization
processes.
results
12-19%
increase
heating
time
for
unheated
sample
surfaces
6-17%
residual
compared
existing
analogs.
Microspheres
help
counteract
negative
impact
microfibers
on
composition
density
thermal
conductivity,
while
phosphorus-boron-containing
allows
controlling
formation
layer.
ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(24), P. 15002 - 15012
Published: Aug. 20, 2024
Polyurea
(PUA)
coatings
have
garnered
significant
interest
as
an
energy-efficient
construction
material.
However,
the
facile
fabrication
of
multifunctional
PUA,
integrating
excellent
fire
resistance,
flame
retardancy,
electromagnetic
wave
(EMW)
absorption,
and
radar
stealth
capabilities,
remains
a
formidable
challenge.
In
this
study,
biobased
core–shell
Fe3O4
(Fe3O4@PM
Fe3O4@PM-Fe)
were
fabricated
using
self-assembly
technology.
The
safety
EMW
absorption
Fe3O4-reinforced
PUA
composites
investigated.
Benefiting
from
powerful
surface
tension
modifiers,
can
be
well-dispersed
in
matrix.
Incorporating
20.0
wt
%
Fe3O4@PM-Fe
into
led
to
marked
decrease
peak
heat
release
rate
(67.0%),
total
(39.5%),
smoke
production
(65.9%)
values.
absorbing
performance
loading
Fe3O4@PM
matrix
is
desirable.
Unfortunately,
there
was
slight
enhancing
reflection
loss
(RL)
when
replaced
by
Fe3O4@PM.
Notably,
Fe3O4@PM-Fe,
which
formed
building
conductive
network
on
shell
Fe3O4@PM,
designed
further
reduce
RL
value.
Additionally,
reduction
cross-section
validated
through
Computer
Simulation
Technology.
also
explored.
composite
obtained
resistance
properties,
making
it
promising
material
for
future
applications.
