Journal of Applied Polymer Science,
Journal Year:
2021,
Volume and Issue:
139(12)
Published: Oct. 27, 2021
Abstract
The
existing
stabilizers
for
nitrocellulose
(NC)
have
various
disadvantages
of
harming
human
health
and
polluting
the
environment,
which
does
not
meet
requirements
“green”
propellants.
This
research
work
investigates
self‐polymerization
dopamine
to
prepare
polydopamine
(PDA)
coated
NC
composites,
explores
effects
PDA
on
thermal
stability
NC.
SEM,
FT‐IR,
RAMAN
were
applied
investigate
changes
surface
morphology
chemical
structure.
results
show
that
is
effectively
form
a
dense
film.
decomposition
behavior
was
studied
by
TG
DSC,
activation
energy
calculated.
showed
physical
mixture
did
improve.
complex
increases
first
then
decreases
with
increasing
concentration
hydrochloride.
optimal
reaction
conditions
are
hydrochloride
3
g/L
time
24
h.
sample
under
190.00
kJ/mol,
8.91%
higher
than
(174.45
kJ/mol),
proves
has
ability
improve
Industrial & Engineering Chemistry Research,
Journal Year:
2020,
Volume and Issue:
59(52), P. 22677 - 22689
Published: Dec. 16, 2020
This
research
focuses
on
the
exploration
of
giant
reed
(Arundo
donax
L.,
AD)
as
a
viable
and
underutilized
sustainable
resource
for
development
energetic
nitrogen-rich
dense
biopolymers
based
surface
amino
functionalization
nitration
extracted
native
cellulose
microcrystals
(ANCN
ACMCN).
Their
physicochemical
features,
molecular
structure,
crystallinity,
thermal
behavior
were
examined
compared
to
those
nitrates
(NCN
CMCN)
produced
from
same
bioresource.
The
obtained
results
demonstrated
that
these
newly
manufactured
cellulosic
materials
present
excellent
performance
reduced
mechanical
sensitivities
with
respect
traditional
NCN
emergent
CMCN.
Furthermore,
nonisothermal
decomposition
kinetics
studied
using
isoconversional
integral
approaches
revealed
developed
ANCN
ACMCN
displayed
good
stability
an
autocatalytic
mechanism
slightly
lower
Arrhenius
parameters
than
common
NCN.
Therefore,
this
study
provides
efficient
process
develop
new
promising
insensitive
macromolecules
valuable
alternative
AD
feedstock
potential
applications
in
solid
propellant
formulations.
New Journal of Chemistry,
Journal Year:
2021,
Volume and Issue:
45(11), P. 5099 - 5113
Published: Jan. 1, 2021
Renewable
giant
reed
has
been
explored
for
the
first
time
to
develop
new
advanced
high-energy
dense
biopolymers
through
carbamate
surface
functionalization
and
nitration
of
native
cellulose
microcrystals.
FirePhysChem,
Journal Year:
2022,
Volume and Issue:
2(4), P. 315 - 322
Published: July 28, 2022
The
present
study
has
been
conducted
to
investigate
the
characteristics
of
composite
solid
propellant
(CSP)
based
on
hydrazinium
3-nitro-1,2,4-triazol-5-one
and
ammonium
nitrate
(HNTO/AN)
cocrystal
as
an
oxidizer
hydroxyl-terminated
polybutadiene
(HTPB)
a
binder,
supplemented
with
or
without
nanocatalyst
(triaminoguanidine-transition
iron,
containing
graphene
oxide).
NASA
Lewis
Code,
Chemical
Equilibrium
Application
(CEA),
used
select
optimal
formulation
through
evaluation
theoretical
performance.
Compared
AP/HTPB
baseline
formulation,
developed
one
presents
promising
properties
since
it
may
deliver
interesting
specific
impulse
value
(231
s−1).
On
other
hand,
DSC
data,
kinetic
triplet
studied
samples
was
determined
using
four
model-free
integral
methods,
namely,
it-KAS,
it-FWO,
VYA,
TAS.
It
observed
that
decomposition
peak
temperature
(Tp)
activation
energy
(Ea)
decreased
obviously
after
addition
nanocatalyst.
This
will
certainly
motivate
further
researches
in
field
energetic
cocrystals
graphene-based
materials
expected
be
rocket
formulations.
ChemistrySelect,
Journal Year:
2023,
Volume and Issue:
8(9)
Published: March 2, 2023
Abstract
Synthesis
method
of
nanocrystalline
Barium‐Copper‐Cobalt
oxide
(BCC)
and
its
composite
with
reduced
graphene
(rGO)
was
provided.
The
size
(∼13
nm)
materials
(BCC
BCC/rGO)
confirmed
using
powder
X‐ray
diffraction
patterns.
effect
rGO,
BCC,
BCC/rGO
on
the
thermal
decomposition
3‐Nitro‐1,2,4‐triazol‐5‐one
(NTO)
ammonium
perchlorate
(AP)
investigated
simultaneous
analysis.
Non‐isothermal
isoconversion
used
to
calculate
activation
energy
AP
NTO
without
BCC/rGO.
analysis
suggests
that
in
presence
BCC
BCC/rGO,
exotherm
lowered
∼259,
∼228
°C,
respectively,
355,
345
respectively.
exhibit
very
good
catalytic
activity
for
by
lowering
NTO's
barrier
∼179
261
kJ
mol
−1
,
calculations
low
high
(∼95
average)
do
not
provide
conclusive
evidence
confirm
influence
composition
NTO+BCC
has
a
lower
(∼121
)
than
pure
which
makes
more
favorable
making
application
insensitive
munitions
favorable.
AP+BCC
decomposes
within
short
temperature
range
hence,
it
can
be
solid
rocket
propellants
requiring
faster
place
AP.
Energy Advances,
Journal Year:
2023,
Volume and Issue:
2(5), P. 679 - 690
Published: Jan. 1, 2023
Cobaltites
NiCuZnCo
2
O
4
and
CuZnCo
their
mixture
with
GO
can
efficiently
reduce
the
thermal
decomposition
temperature
activation
energy
of
high
energetic
material
ammonium
perchlorate
nitrotriazolone.
