Regulating hollow structure of CL-20 microspheres using microjet droplet technology to enhance safety and combustion performance
Fuel,
Год журнала:
2023,
Номер
361, С. 130748 - 130748
Опубликована: Дек. 27, 2023
Язык: Английский
Hierarchical nanoarchitectonics of hollow hexanitrostilbene (HNS) microspheres to improve safety and combustion performance
Fuel,
Год журнала:
2024,
Номер
378, С. 132916 - 132916
Опубликована: Авг. 27, 2024
Язык: Английский
Controllable preparation of hexanitrostilbene (HNS) microspheres with multi-cavity structure to enhance safety and combustion performance
Powder Technology,
Год журнала:
2024,
Номер
449, С. 120397 - 120397
Опубликована: Окт. 25, 2024
Язык: Английский
Preparation of hexanitrostilbene/aluminum microspheres with interconnected multi-cavity structure for enhanced safety and combustion performance
Particuology,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Язык: Английский
High-Quality Preparation of Energy-Containing Microspheres with Cross-Scale Particle Size
Micromachines,
Год журнала:
2025,
Номер
16(4), С. 416 - 416
Опубликована: Март 31, 2025
Microfluidic
granulation
technology
enables
high-quality
production
of
energy-containing
microspheres,
significantly
enhancing
both
performance
and
safety.
Although
microfluidic
methods
allow
control
over
microsphere
particle
size,
the
adjustment
range
remains
limited;
low
yield
process
discontinuity
also
restrict
broader
application
in
synthesis
materials.
This
paper
presents
a
system
for
materials
utilizing
pulsed
pneumatic
printing,
co-flow,
flow-focusing
techniques
to
achieve
wide
size
adjustment,
consistent
formation,
high
speed,
efficiency.
allows
sizes
between
110
2500
μm,
with
coefficient
variation
(CV)
as
1.9%,
frequency
exceeding
13,000
Hz,
suspension
consumption
rate
reaching
100
mL/h.
Calcium
alginate/potassium
perchlorate
prepared
sodium
alginate
hydrogel
binder,
exhibit
uniform
structure,
narrow
distribution,
efficient
energy
material
loading.
We
anticipate
further
advancements
applying
based
on
this
system.
Язык: Английский
Prediction of crystal form and study on crystal growth characteristics of TKX-55—a novel heat-resistant energetic material
The Journal of Chemical Physics,
Год журнала:
2025,
Номер
162(16)
Опубликована: Апрель 22, 2025
5,5′-Bis(2,4,6-trinitrophenyl)-2,2′-bi(1,3,4-oxadiazole)
(TKX-55)
is
a
new
type
of
heat-resistant
energetic
material
with
excellent
detonation
performance.
To
study
the
crystal
particle
morphology
and
size
control
TKX-55,
this
predicted
structure
TKX-55
through
quantum
chemistry
molecular
dynamics
simulations
as
well
simulated
analyzed
changes
that
occur
under
influence
specific
solvents
habit
modification.
Based
on
simulation
results,
designed
five
different
recrystallization
methods
prepared
recrystallized
products
morphologies
distributions.
The
growth
mechanism
was
discussed.
samples
were
characterized
using
scanning
electron
microscopy,
powder
x-ray
diffraction,
infrared
spectroscopy
techniques.
thermal
properties
tested
differential
calorimetry
thermogravimetric
analysis.
impact
sensitivity
sample
tested,
it
found
product
significantly
lower
than
raw
material.
Through
combination
experiment,
ultimately
obtained
three
rules,
narrow
distribution,
effectively
improved
safety
particles.
Язык: Английский
Design and Experimental Characterization of a Microfluidic Piezoelectric Pump Utilizing P(VDF-TrFE) Film
Coatings,
Год журнала:
2024,
Номер
14(12), С. 1483 - 1483
Опубликована: Ноя. 24, 2024
Advancements
in
wearable
technology
and
lab-on-chip
devices
necessitate
improved
integrated
microflow
pumps
with
lower
driving
voltages.
This
study
examines
a
piezoelectric
pump
using
flexible
β-phase
copolymer
poly(vinylidene
fluoride-trifluoroethylene)
(P(VDF-TrFE))
film.
Six
samples
(S1–S6)
were
fabricated
subjected
to
three-step
annealing
process
optimize
their
properties.
Characterization
was
conducted
via
atomic
force
microscopy,
X-ray
diffraction,
Fourier
transform
infrared
spectroscopy,
impedance
analysis,
polarization
hysteresis
loop
measurements.
The
results
show
that
at
approximately
135
degrees
Celsius
produces
structure
uniform
“rice
grain”-like
crystallites.
A
microfluidic
nozzle/diffuser
structure,
S4
film
as
the
drive
layer,
designed
manufactured.
Diaphragm
deformation
performance
assessed,
showing
maximum
water
flow
rate
of
25
µL/min
60
Hz
peak-to-peak
voltage
(Vpp)
V.
could
be
precisely
controlled
within
0–25
by
adjusting
Vpp
frequency.
effectively
reduced
pump,
it
has
significant
implications
for
smart
devices.
Язык: Английский
Preparation of Hollow Energetic Microspheres with Enhanced Safety and Combustion Performance Assisted by Microjetting Droplet Technology
Опубликована: Янв. 1, 2023
Hollow
energetic
microspheres
have
attracted
great
attention
in
the
field
of
materials
due
to
their
wide
application
potential.
However,
scalable,
simple,
and
low-cost
production
methods
not
been
achieved
yet.
In
this
study,
using
nitrocellulose
(NC)
as
a
binder,
hollow
porous
CL-20
were
prepared
by
assist
microjet
droplet
technology.
The
effects
solution
concentration,
receiving
liquid
temperature,
solvent
type
on
morphology,
particle
size,
shell
thickness,
pore
size
systematically
investigated.
Furthermore,
influences
thickness
dispersibility,
crystal
structure,
thermal
decomposition,
mechanical
sensitivity,
combustion
behavior
further
studied.
results
showed
that
precise
control
over
could
be
adjusting
experimental
parameters.
Compared
raw
CL-20,
exhibited
excellent
dispersibility
improved
safety
performance.
Ignition
experiments
demonstrated
structures
significantly
enhanced
flame
energy
release
efficiency.
This
preparation
method
is
simple
efficient,
providing
new
approach
for
fabrication
multi-structured
microspheres.
Язык: Английский