Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 11, 2024
Abstract
A
developing
society
requires
polycaprolactam
(PA6)
fibers
with
flame
retardant.
Currently,
the
additive
retardants
commonly
used
in
PA6
cannot
solve
molten
droplet
problem.
In
this
work,
(1
E
,1
′
)‐
N
,
N′
‐(6‐phenyl‐1,3,5‐triazine‐2,4‐diyl)
bis
(1‐(4‐methoxyphenyl)
methanimine)
(NBM)
triazine
ring
structure
was
synthesized.
The
to
expand
into
carbon
and
benzoguanimine
produce
irreversible
chemical
crosslinking
NBM,
thereby
achieving
anti‐dripping
retardant
of
fiber.
LOI
PA6/NBM
8
reaches
30.0
vol.%,
UL‐94
V‐0
when
NBM
addition
amount
is
wt.%,
meanwhile,
residual
content
235.7%
higher
than
that
PA6.
mechanical
strength
can
still
reach
3.22
cN/dTex.
From
structural
design
synthesis,
effects
on
retardants,
rheology,
thermal
stability
morphology
x
were
analyzed
detail
work.
It
hoped
future
characteristics
performance
requirements
be
matched
provide
reference
for
conception
synthesis
oriented
other
polymers.
Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
141(14)
Опубликована: Янв. 16, 2024
Abstract
Diatomite
(DIA)
particles
are
commonly
employed
as
flame‐retardant
additives
for
polymers,
yet
their
intrinsic
inefficiency
requires
substantial
quantities
optimal
efficacy.
To
address
this
issue,
we
proposed
a
novel
approach
involving
the
microencapsulation
of
DIA
with
polyethylene
glycol
phosphate
(PEGP)
to
enhance
flame
retardancy
epoxy
resin
(EP).
Characterization
prepared
DIA@PEGP
utilized
scanning
electron
microscopy
energy‐dispersive
x‐ray
spectrometry
and
Fourier
transform
infrared
spectroscopy.
The
resulting
EP
composite,
DIA@PEGP‐4/EP,
achieved
limiting
oxygen
index
33.2%
V‐0
level
in
vertical
combustion
tests.
Compared
EP,
DIA@PEGP‐4/EP
demonstrated
significantly
improved
fire
performance,
38.6%,
47.8%,
25.0%,
41.3%,
60.4%
reduction
peak
heat
release
rate,
total
release,
smoke
production
production,
CO
yield.
Furthermore,
highest
FPI
value
0.080
m
2
·s/kW
DIA@PEGP‐1/EP
lowest
FGI
8.734
kW/m
·s
indicate
that
incorporation
into
enhances
its
safety.
mechanism
DIA@PEGP‐4
involves
formation
phosphorus‐containing
aromatic
carbon
layer
during
char
formation,
capturing
radicals
gas
phase
combustion.
Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 11, 2024
Abstract
A
developing
society
requires
polycaprolactam
(PA6)
fibers
with
flame
retardant.
Currently,
the
additive
retardants
commonly
used
in
PA6
cannot
solve
molten
droplet
problem.
In
this
work,
(1
E
,1
′
)‐
N
,
N′
‐(6‐phenyl‐1,3,5‐triazine‐2,4‐diyl)
bis
(1‐(4‐methoxyphenyl)
methanimine)
(NBM)
triazine
ring
structure
was
synthesized.
The
to
expand
into
carbon
and
benzoguanimine
produce
irreversible
chemical
crosslinking
NBM,
thereby
achieving
anti‐dripping
retardant
of
fiber.
LOI
PA6/NBM
8
reaches
30.0
vol.%,
UL‐94
V‐0
when
NBM
addition
amount
is
wt.%,
meanwhile,
residual
content
235.7%
higher
than
that
PA6.
mechanical
strength
can
still
reach
3.22
cN/dTex.
From
structural
design
synthesis,
effects
on
retardants,
rheology,
thermal
stability
morphology
x
were
analyzed
detail
work.
It
hoped
future
characteristics
performance
requirements
be
matched
provide
reference
for
conception
synthesis
oriented
other
polymers.
