Propellants Explosives Pyrotechnics,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 28, 2024
ABSTRACT
The
thermal
decomposition
analysis
of
nitrocellulose–nitroglycerine
(NC–NG),
3,4‐dinitrofurazanfuroxan
(DNTF),
and
their
mixed
system
with
differential
scanning
calorimetry
(DSC),
thermogravimetric
analysis‐DSC–mass
spectroscopy–Fourier
transform
infrared
spectroscopy
(TG–DSC–MS–FTIR)
coupling
technique,
in
situ
FTIR
experiments
under
different
experimental
conditions
was
carried
out
for
the
investigation
interaction
mechanism
between
NC–NG
DNTF.
results
demonstrated
that
mixture
significantly
decreased
peak
temperature
DNTF,
activation
energy
final
(156.32
kJ
mol
−1
)
lower
than
both
(163.82
DNTF
(177.03
).
On
basis
gas
fragmental
products
condensed
phase
changes,
triggered
thermally
process,
resulting
intensive
amount
nitrogen
oxides
which
further
caused
breakage
nitro
groups
Nanomaterials,
Год журнала:
2024,
Номер
14(19), С. 1574 - 1574
Опубликована: Сен. 29, 2024
Both
nanoscience
and
nanotechnology
have
undoubtedly
contributed
significantly
to
the
development
of
thermite-based
nanoenergetic
materials
(NEMs)
with
tunable
tailorable
combustion
performance
their
subsequent
integration
into
devices.
Specifically,
this
review
article
reflects
immense
paybacks
in
designing
fabricating
ordered/disordered
assembly
energetic
over
multiple
length
scales
(from
nano-
milli-scales)
terms
realization
desired
reaction
rates
sensitivity.
Besides
presenting
a
critical
present
advancements
made
synthesis
NEMs,
touches
upon
aspects
related
various
applications
concomitantly.
The
concludes
author’s
summary
insurmountable
challenges
road
ahead
toward
deployment
practical
applications.
real
challenge
lies
ability
preserve
self-assembly
fuel
oxidizer
nanoparticles
achieved
at
nanoscale
while
synthesizing
macroscale
formulations
using
advanced
fabrication
techniques
both
bulk
thin
film
forms.
Most
importantly,
these
self-assembled
NEMs
exhibit
excellent
reduced
sensitivity
external
stimuli
such
as
electrostatic
discharge
(ESD),
friction
impact.
Fire,
Год журнала:
2024,
Номер
7(10), С. 348 - 348
Опубликована: Сен. 30, 2024
Coal-to-liquid
technology
is
a
key
to
ensuring
national
energy
security,
with
the
Fischer–Tropsch
synthesis
process
at
its
core.
However,
in
actual
production,
wax
residue
exhibits
characteristics
of
spontaneous
combustion
due
heat
accumulation,
posing
fire
hazard
when
exposed
air
for
extended
periods.
This
significantly
threatens
safe
production
operations
coal-to-liquid
chemical
enterprises.
study
primarily
focuses
on
experimental
investigation
oxidative
three
typical
types
residues
produced
during
synthesis.
Differential
Scanning
Calorimetry
(DSC)
was
used
test
thermal
flow
curves
samples.
Kinetic
analysis
performed
using
Kissinger–Akahira–Sunose
(KAS)
and
Flynn–Wall–Ozawa
(FWO)
methods
calculate
their
apparent
activation
energy.
analyzed
behavior
characteristics,
exothermic
properties,
kinetic
parameters
samples,
exploring
ease
reaction
between
oxygen
tendency
combustion.
The
results
indicate
that
Wax
Residue
1
rich
low-carbon
chain
alkanes
olefins,
2
contains
relatively
fewer
while
3
consists
high-carbon
olefins.
leads
different
among
having
lowest
release
average
highest
These
findings
suggest
has
higher
research
provides
scientific
basis
safety
management
coal
industry,
further
exploration
into
storage
handling
could
reduce
risks
future.
Propellants Explosives Pyrotechnics,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 28, 2024
ABSTRACT
The
thermal
decomposition
analysis
of
nitrocellulose–nitroglycerine
(NC–NG),
3,4‐dinitrofurazanfuroxan
(DNTF),
and
their
mixed
system
with
differential
scanning
calorimetry
(DSC),
thermogravimetric
analysis‐DSC–mass
spectroscopy–Fourier
transform
infrared
spectroscopy
(TG–DSC–MS–FTIR)
coupling
technique,
in
situ
FTIR
experiments
under
different
experimental
conditions
was
carried
out
for
the
investigation
interaction
mechanism
between
NC–NG
DNTF.
results
demonstrated
that
mixture
significantly
decreased
peak
temperature
DNTF,
activation
energy
final
(156.32
kJ
mol
−1
)
lower
than
both
(163.82
DNTF
(177.03
).
On
basis
gas
fragmental
products
condensed
phase
changes,
triggered
thermally
process,
resulting
intensive
amount
nitrogen
oxides
which
further
caused
breakage
nitro
groups
