Polymers,
Journal Year:
2024,
Volume and Issue:
16(21), P. 3049 - 3049
Published: Oct. 30, 2024
Epoxy
resins
(EPs)
are
highly
flammable,
and
traditional
flame
retardant
modifications
often
lead
to
a
significant
reduction
in
their
mechanical
performance,
limiting
applications
aerospace
electrical
electronic
fields.
In
this
study,
novel
retardant,
bis(4-(((diphenylphosphoryl)oxy)methyl)phenyl)phenyl
phosphate
(DMP),
was
successfully
prepared
introduced
into
the
EP
matrix.
When
addition
of
DMP
9
wt%,
EP/9
wt%
thermosets
passed
UL-94
V-0
rating,
LOI
increased
from
24.5%
35.0%.
With
introduction
DMP,
phosphoric
acid
compounds
decomposition
promoted
dehydration
charring
matrix,
compact,
dense
char
layer
effectively
exerted
shielding
effect
condensed
phase.
Meanwhile,
produced
phosphorus-containing
radicals
played
quenching
gas
As
result,
peak
heat
release
rate
(PHRR)
total
(THR)
were
reduced
by
68.9%
18.1%
compared
pure
EP.
addition,
polyaromatic
structure
had
good
compatibility
with
tensile
strength,
flexural
strength
impact
enhanced
116.38%,
17.84%
59.11%
comparison
that
This
study
is
valuable
for
expanding
application
flame-retardant
EP/DMP
emerging
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 8, 2025
Abstract
Polymeric
materials
featuring
excellent
flame
retardancy
are
essential
for
applications
requiring
high
levels
of
fire
safety,
while
those
based
on
biopolymers
highly
favored
due
to
their
eco‐friendly
nature,
sustainable
characteristics,
and
abundant
availability.
This
review
first
outlines
the
pyrolysis
behaviors
biopolymers,
with
particular
emphasis
naturally
occurring
ones
derived
from
non‐food
sources
such
as
cellulose,
chitin/chitosan,
alginate,
lignin.
Then,
strategies
chemical
modifications
flame‐retardant
purposes
through
covalent,
ionic,
coordination
bonds
presented
compared.
The
is
placed
advanced
methods
introducing
biopolymer‐based
retardants
into
polymeric
matrices
fabricating
materials.
Finally,
challenges
sustaining
current
momentum
in
utilization
further
discussed.
Bamboo/polymer
composites
have
attracted
significant
attention
for
their
eco-friendly
nature,
lightweight,
and
high
strength.
However,
intrinsic
flammability
restricts
applications,
as
traditional
flame-retardant
methods
often
struggle
to
balance
flame
resistance
mechanical
performance.
This
study
introduces
a
novel
approach
constructing
layer-by-layer
structure
on
bamboo
fibers,
drawing
inspiration
from
cable
protection
designs.
Partially
delignified
was
processed
develop
porous
structure,
which
then
subjected
esterification
treatment
improve
its
copper
ion
binding
capacity.
Coordination
bonds
were
employed
crosslinking
agents,
enabling
the
incorporation
of
ammonium
phytate
form
robust,
continuous
composite
layer
adhered
parenchyma
cells.
Continuous
protective
effectively
inhibits
heat
transfer
penetration
flammable
gases.
It
also
strengthens
integrity
cells,
reducing
load
during
external
impacts
material.
The
treated
bamboo/epoxy
showed
an
increase
in
LOI
23.4%
31.1%.
Furthermore,
THR
TSP
decreased
by
49.2%
74.0%,
respectively.
material
maintained
performance
360.1
MPa.
Additionally,
exhibited
outstanding
superhydrophobicity
antibacterial
properties.
These
features
render
ideal
outdoor
construction,
marine
vessels
bridges,
paving
way
high-value
utilization.
Journal of Applied Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 9, 2025
ABSTRACT
In
this
research,
iron
tetroxide
(Fe₃O₄)
nanoparticles
were
in
situ
synthesized
on
the
surface
of
molybdenum
disulfide
(MoS
2
)
via
a
radiation
technique
to
fabricate
MoS₂@Fe₃O₄
hybrid.
Notably,
tensile
strength
and
elongation
at
break
ethylene
vinyl
acetate
(EVA)/magnesium
hydroxide
(MH)
composites
enhanced
by
62.5%
59.1%,
respectively,
with
addition
one
part
hybrid,
attributed
its
excellent
reinforcing
effect.
Simultaneously,
peak
heat
release
rate
(pHRR)
total
EVA/MH
composite
decreased
45.9%
14.4%,
while
residue
content
increased
43.4%.
Furthermore,
EVA/MH/MoS₂@Fe₃O₄
hybrid
generated
significantly
fewer
toxic
gases
(such
as
CO)
compared
composites,
demonstrating
fire
safety.
This
study
underscores
potential
creating
noble
metal‐free
layered
integrating
cost‐effective
eco‐friendly
Fe₃O₄
co‐catalysts,
such
hybrids,
improve
safety
EVA
composites.
