Carbon nanofibers introduce nitroguanidine propulsion to improve mechanical properties, and the study of thermal decomposition, combustion behavior and molecular dynamics
Ling Chen,
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Anning Sun,
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Jianwei Zhang
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et al.
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
496, P. 153932 - 153932
Published: July 11, 2024
Language: Английский
Study on the constant volume combustion performance of single-based propellant by considering heat dissipation correction
G. Sun,
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Ling Chen,
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Weidong He
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et al.
Journal of Physics Conference Series,
Journal Year:
2025,
Volume and Issue:
3009(1), P. 012087 - 012087
Published: May 1, 2025
Abstract
Aiming
at
the
problem
of
difference
between
combustion
performance
propellant
obtained
according
to
current
processing
method
and
actual
situation,
a
one-dimensional
cylindrical
wall
axisymmetric
unsteady
heat
transfer
model
for
burning
in
closed
vessel
has
been
established.
By
utilizing
original
pressure-time
curve
from
experiments,
dissipation
corresponding
pressure
drop
were
calculated
was
corrected
during
process.
The
curves
used
investigate
impact
corrections
on
single-based
propellants
under
various
loading
densities
test
temperatures.
Compared
with
result
without
correction,
maximum
rate
(0.12
g·cm
−3
,
20°C)
increased
by
7.08%
6.40%
respectively
after
considering
correction.
Language: Английский
Construction of nitrate glycerol ether cellulose/RDX energetic composite in gun propellants and its comprehensive performance
Ling Chen,
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Jianwei Zhang,
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Derong Meng
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et al.
Cellulose,
Journal Year:
2024,
Volume and Issue:
31(9), P. 5725 - 5745
Published: May 10, 2024
Language: Английский
Investigating the influence of relative humidity on the hot-air drying mechanism and properties of a double-base propellant
Derong Meng,
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Ling Chen,
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Weidong He
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et al.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(30), P. 11412 - 11425
Published: Jan. 1, 2024
The
influence
of
relative
humidity
on
drying
characteristics
a
double-base
propellant
is
investigated
for
the
first
time
using
hot-air
system.
Shorter
and
better
quality
propellants
dried
at
50
°C
60%
humidity.
Language: Английский
Study on recrystallization process of nitroguanidine by directly adding cold water to control temperature
Jianjuan Zhang
No information about this author
Open Chemistry,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: Jan. 1, 2024
Abstract
Nitroguanidine
(NGu),
as
a
kind
of
high-energy
material,
is
widely
used
explosive
propellant
and
energy
component
explosives
smokeless
powder.
However,
NGu
crystals
prepared
by
crystallization
process
are
hollow
long
needles,
their
bulk
density
bombing
performance
greatly
limited
due
to
the
high
at
tip,
large
porosity,
poor
fluidity.
Surprisingly,
particle
size
morphology
can
effectively
be
improved
recrystallization
process.
In
this
article,
directly
adding
cold
water
control
temperature
first
proposed,
aiming
improve
morphological
characteristics
reduce
NGu.
Through
single
factor
experimental
research,
influences
various
operating
parameters
on
during
were
studied
in
detail.
The
results
showed
that
smallest
average
was
19.8
μm
when
crude
concentration,
temperature,
volume
ratio
boiling
water,
stirring
speed,
polyvinyl
alcohol
concentration
5
g/100
mL,
0°C,
1:1,
800
rpm,
0.35
respectively.
Correspondingly,
short
rod,
which
helpful
density.
This
novel
has
great
potential
characteristics,
providing
new
idea
for
preparation
military
with
small
Language: Английский