International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(10), P. 5512 - 5512
Published: May 18, 2024
Polyurethanes
are
among
the
most
significant
types
of
polymers
in
development;
these
materials
used
to
produce
construction
products
intended
for
work
various
conditions.
Nowadays,
it
is
important
develop
methods
fire
load
reduction
by
using
new
kinds
additives
or
monomers
containing
elements
responsible
materials'
resistance.
Currently,
additive
antipyrines
reactive
flame
retardants
can
be
during
polyurethane
material
processing.
The
use
usually
leads
migration
volatilization
surface
material,
which
causes
loss
resistance
and
aesthetic
values
product.
Reactive
form
compounds
special
functional
groups
that
chemically
bonded
with
polymerization,
prevent
material.
In
this
study,
compared.
Their
impacts
on
retardancy,
combustion
mechanism,
environment
described.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(13), P. 17054 - 17069
Published: March 21, 2023
A
supramolecular
self-assembly
method
was
used
to
prepare
melamine
cyanurate/α-ZrP
nanosheets
(MCA@α-ZrP)
as
a
novel
hybrid
flame
retardant
for
thermoplastic
polyurethane
(TPU).
Microstructure
characterization
showed
uniform
dispersion
with
strong
interfacial
strength
of
the
MCA@α-ZrP
within
TPU
matrix,
leading
simultaneous
enhancements
in
both
mechanical
and
fire-safety
properties.
The
TPU/MCA@α-ZrP
nanocomposite
exhibited
43.1
47.0%
increments
tensile
fracture
energy,
respectively.
Thanks
platelike
structure
α-ZrP
coupled
dilution
effect
MCA
(releasing
nonflammable
gases),
reduced
peak
heat
release
rate
by
49.7%
comparison
15.8
35.4%
TPU/MCA
TPU/
composites,
fire
performance
index
is
significantly
promoted
90%
upon
adding
hybrid.
Additionally,
LOI
UL-94
tests
high
flame-retarding
characteristics
For
example,
increased
from
20.0%
neat
25.5%
system,
it
rated
V-1
test.
Furthermore,
smoke
production
pyrolysis
products
were
suppressed
into
TPU.
Interfacial
hydrogen
bonding,
MCA,
forming
"labyrinth"
layer,
catalytic
action
synergistically
improved
retardancy
nanocomposites.
This
work
provides
new
example
integrating
traditional
retardants
functional
develop
polymeric
nanocomposites
ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(2), P. 1376 - 1388
Published: Jan. 17, 2024
In
the
current
study,
a
facile
approach
is
introduced
to
enhance
flame
retardancy
of
thermoplastic
polyurethane
(TPU)
using
supramolecular-wrapped
α-zirconium
phosphate
nanohybrid
(CPP@ZrP).
The
CPP@ZrP
was
successfully
synthesized
by
enveloping
phytic
acid-doped
polypyrrole
shell
and
linking
it
cobalt
ions
via
multivalent
anions
acid.
exhibited
relatively
uniform
dispersion
within
TPU
matrix,
leading
strong
interface
between
hence
high
mechanical
flame-retarding
properties.
strength
increased
37%
with
850%
elongation
at
break
5.0
wt
%
CPP@ZrP.
Similarly,
adding
into
substantially
reduced
peak
heat
release
rate
41.8%,
smoke
production
25.8%,
total
CO
32.9%.
average
effective
combustion
from
TPU/CPP@ZrP
composite
25%
which
confirms
reduction
in
flammable
volatile
substances.
experimental
measurements
morphology
char
residuals
reveal
that
reduces
gas
condensed
phases
reacting
volatiles
preventing
transfer
flames.
study
introduces
designing
metallic-organic–inorganic
hybrid
retardant,
CPP@ZrP,
efficacy
reducing
fire
risks
mitigating
toxicity
polymers.
