Functionalization of chitosan and its application in flame retardants: A review
International Journal of Biological Macromolecules,
Год журнала:
2025,
Номер
295, С. 139615 - 139615
Опубликована: Янв. 7, 2025
Язык: Английский
Hierarchical Nanospheres toward Flame-Retardant, Mechanically Strong, and Low-Toxicity Epoxy Resins
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(15), С. 9238 - 9248
Опубликована: Июль 29, 2024
To
endow
epoxy
resins
(EPs)
with
outstanding
flame-retardant
and
smoke-inhibiting
effects,
a
multifunctional
nanoparticle
(SCP)
has
been
designed
prepared
via
simple
approach,
wherein
Cu2O,
melamine,
phosphorus-containing
flame
retardants
were
successively
deposited
onto
the
surface
of
silica
nanospheres.
The
incorporation
low
addition
amount
2
wt
%
SCP
within
EP
demonstrates
significant
improvement
in
retardancy.
This
enhancement
is
evidenced
by
notable
increase
limiting
oxygen
index
to
29.2%
attainment
V-1
rating
vertical
burning
test,
contrast
respective
values
23.8%
no
for
unmodified
EP,
respectively.
Moreover,
total
smoke
production,
peak
heat
release
rate,
production
rate
CO
EP/SCP-2
during
cone
calorimeter
test
decreased
10.2%,
26.1%,
37.0%,
Besides,
also
endows
composites
commendable
mechanical
properties
glass
transition
temperature
(Tg),
as
22.5%
impact
strength,
an
8.1%
rise
tensile
9.5%
Tg,
comparing
EP.
mechanism
analysis
revealed
that
functions
resin
through
both
gas-phase
condensed-phase
mechanisms.
Overall,
proposed
strategy
presents
promising
approaches
simultaneously
enhancing
fire
safety
performance
polymer
materials.
Язык: Английский
Synthesis of a novel biomass-based flame retardant featuring vinyl-terminated chemical cross-linking and application in flame retardancy, smoke suppression, toxicity reduction and mechanical enhancement of PAN composite fibers
Composites Part B Engineering,
Год журнала:
2024,
Номер
unknown, С. 111846 - 111846
Опубликована: Сен. 1, 2024
Язык: Английский
Preparation of novel flame retardant, smoke suppression and toxicity reduced PAN composite fiber based on biomass phosphononitrile derivative with Cu2+
Polymer Degradation and Stability,
Год журнала:
2025,
Номер
233, С. 111183 - 111183
Опубликована: Янв. 8, 2025
Язык: Английский
Tuning Rheological Property of Polyacrylonitrile Solution: Viscosity, Viscoelasticity, and Nonlinearity
Journal of Applied Polymer Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 25, 2025
ABSTRACT
In
the
production
process
of
carbon
fibers
(CF),
quality
PAN
spinning
solution
(PANss)
is
one
critical
factors
influencing
performance
CF.
this
study,
PANss
with
different
mixed
solvents
were
prepared,
and
its
viscosity,
linear
nonlinear
rheological
behavior
characterized
by
measurement.
The
results
demonstrated
manuscript
belong
to
non‐Newtonian
fluids.
zero‐shear
viscosity(η
0
)
decreased
increase
in
lower‐viscosity
solvent,
while
index
flow
(n)
increased
addition
variation
η
n
as
a
function
solvent
content
could
be
fitted
using
equation
.
Furthermore,
slope
log
G″
versus
G′
dimethylformamide
(DMF)
both
PAN/dimethyl
sulfoxide
(DMSO):
DMF
PAN/dimethylacetamide
(DMAC):
solution.
Conversely,
raised
DMAC
PAN/DMSO:
Additionally,
degree
nonlinearity
three
types
gradually
or
increased.
Язык: Английский