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.
Reducing
the
formation
of
large
carbon
clusters
during
combustion
process
energetic
materials
and
improving
their
explosive
performance
is
great
significance.
In
this
paper,
HNS/n-Al
microspheres
with
different
n-Al
content
(5%,
10%
15%)
were
prepared
by
droplet
microfluidic
technology
using
fluororubber
(F2604)
as
binder.
The
morphology,
particle
size
distribution,
dispersibility,
crystal
structure,
thermal
properties,
mechanical
sensitivity
behavior
characterized
tested.
results
show
that
have
regular
shapes,
uniform
size,
excellent
more
homogeneous
components
than
physically
mixed
samples.
still
retain
structure
raw
higher
safety
performance.
Thermal
analysis
shows
high
heat
resistance
(the
decomposition
temperature
exceeds
354°C),
increase
content,
reaction
HNS
becomes
thorough
(HNS:
82.9%,
HNS/n-Al:
83.8%,
86.0%,
93.2%).
Ignition
experiments
exhibit
stable
self-sustaining
performance,
complete
reactions
significant
energy
release
effects,
which
expected
to
achieve
high-energy
high-speed
response
for
carbon-rich
oxygen-poor
improve
practical
application
value.
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.
