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.
Defence Technology,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 1, 2024
Energetic
materials,
characterized
by
their
capacity
to
store
and
release
substantial
energy,
hold
pivotal
significance
in
some
fields,
particularly
defense
applications.
Microfluidics,
with
its
ability
manipulate
fluids
facilitate
droplet
formation
at
the
microscale,
enables
precise
control
of
chemical
reactions.
Recent
scholarly
endeavors
have
increasingly
harnessed
microfluidic
reactors
realm
energetic
yielding
morphologically
controllable
particles
enhanced
uniformity
explosive
efficacy.
However,
crucial
insights
into
microfluidic-based
methodologies
are
dispersed
across
various
publications,
necessitating
a
systematic
compilation.
Accordingly,
this
review
addresses
gap
concentrating
on
synthesis
materials
through
microfluidics.
Specifically,
methods
based
micro-mixing
droplets
previous
papers
summarized
strategies
critical
parameters
within
reactions
discussed
detail.
Then,
comparison
terms
advantages
disadvantages
is
attempted.
As
demonstrated
last
section
regarding
perspectives,
challenges
such
as
clogging,
dead
zones,
suboptimal
production
yields
non-ignoble
promising
fields
they
might
be
addressed
integrating
sound,
optics,
or
electrical
energy
meet
heightened
requirements.
This
comprehensive
overview
aims
consolidate
analyze
diverse
array
approaches
material
synthesis,
offering
valuable
for
future
research
directions.
Defence Technology,
Год журнала:
2023,
Номер
32, С. 629 - 643
Опубликована: Фев. 23, 2023
In
order
to
improve
the
energy
output
consistency
of
3,
3′-diamino-4,
4′-azoxyfurazan
(DAAF)
in
new
insensitive
booster
and
safety
efficiency
preparation
process,
a
continuous
system
DAAF
from
synthesis
spherical
coating
was
designed
established
this
paper,
which
combined
ultrasonic
micromixing
reaction
with
microdroplet
globular
template.
rapid
stage,
microfluidic
mixing
technology
used
synergistically
strengthen
uniform
mass
transfer
between
raw
materials
ensure
uniformity
particle
nucleation-growth,
prepare
high-quality
crystals
structure
morphology
concentrated
size
distribution.
template
droplet
form
under
shear
action
phase
dispersed
solution
containing
particles
binder.
The
controlled
by
adjusting
flow
rate
ratio
phase.
template,
diffusion
solvent
droplets,
binder
precipitates
coat
into
ball,
forming
microsphere
high
sphericity,
narrow
distribution
good
monodispersity.
problem
discontinuity
suspension
process
solved,
theory
studied.
coated
different
formulations
fluororubber
(F2604),
nitrocellulose
(NC)
NC/glycidyl
azide
polymer
(GAP),
verification
evaluation
were
carried
out.
balling
effects
large,
medium
small
templates
scanning
electron
microscope
(SEM)
results
show
that
three
exhibit
effect
microspheres
characterized
powder
X-ray
diffraction
(XRD),
differential
calorimetry
(DSC),
thermo-gravimetric
(TG)
sensitivity
analyzer.
showed
crystal
did
not
change
during
prepared
had
lower
decomposition
temperature
mechanical
than
DAAF.
detonation
parameters
using
above
will
greatly
reduce
DAAF,
has
comparable
performance
This
study
proves
an
efficient
safe
modification
explosives,
provides
way
for
continuous,
explosives.
Journal of Materials Research and Technology,
Год журнала:
2024,
Номер
30, С. 2798 - 2816
Опубликована: Апрель 6, 2024
Much
attention
has
been
paid
to
the
coating
of
energetic
materials
improve
their
properties.
However,
present
technology
drawbacks,
and
it
fails
meet
requirements
engineering
applications.
In
this
study,
observation
toad
spawning
process
gave
an
idea
for
efficient
preparation
millimeter-sized
coated
granules
by
directly
using
unrefined
HMX.
technique,
device
was
cheaper
were
simpler.
The
mechanism
formation
curing
studied.
its
formula
continuously
optimized
during
exploration
process.
morphologies
properties
with
different
binders
studied
various
techniques
industrial
productivity
evaluated.
showed
regular
full
morphology
after
optimization
not
easily
deformed.
Compared
HMX,
flowability
significantly
improved,
mechanical
sensitivity
reduced,
response
time
ignition
shorter,
flame
intensity
higher.
This
method
solved
problems
sedimentation
particulates
large-sized
droplets,
while
high
production
efficiency
little
wastage
provided
a
new
reference
producing
high-energy
use
in
Energetic Materials Frontiers,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 1, 2024
Recent
years
have
witnessed
significant
advancements
in
methodologies
and
techniques
for
the
synthesis
of
energetic
materials,
which
are
expected
to
shape
future
manufacturing
applications.
Techniques
including
continuous
flow
chemistry,
electrochemical
synthesis,
microwave-assisted
biosynthesis
been
extensively
employed
pharmaceutical
fine
chemical
industries
and,
gratifyingly,
found
broader
This
review
comprehensively
introduces
recent
utilization
these
emerging
techniques,
aiming
provide
a
catalyst
development
novel
green
methods
synthesizing
materials.
