In
most
3D
printing
technologies,
objects
are
realized
layer
by
layer.
This
layer-by-layer
construction
leads
to
inherent
anisotropic
physical
properties.
Controlling,
understanding
and
sometimes
mitigating
such
anisotropy
is
a
critical
issue
in
the
development
of
printing.
We
demonstrate
quantify
this
work
electrical
conductive
materials
processed
so-called
Digital
Light
Processing
(DLP)
method.
method,
which
enjoys
high
resolution
speed,
layers
polymers,
successively
cross-linked
UV
irradiation
2D
patterns.
Here,
we
use
acrylate
based
resins
carbon
nanotube
as
fillers
for
their
low
percolation
threshold
that
allows
realizing
still
sufficiently
transparent
irradiation.
Conductivity
parallel
printed
found
be
much
greater
than
conductivity
perpendicular
layers.
explained
contact
resistance
between
High
results
from
slow
diffusion
nanotubes
uncured
material
towards
interface
cured
object.
implementing
delay
time
before
curing
successive
layers,
or
decreasing
matrix
viscosity
with
temperature,
promote
particles
allow
substantial
reduction
As
result,
can
reduced
almost
two
orders
magnitude.
control
mitigation
reconciliation
DLP
technology
possibility
realize
uniform
materials.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(27)
Опубликована: Март 4, 2024
Abstract
Shape
memory
polymers
(SMPs)
are
smart
materials
that
enable
to
transform
back
their
original
shape
from
the
deformed
state
when
subjected
external
stimuli.
They
have
shown
great
potential
used
as
sensors
and
actuators
in
diverse
applications.
However,
current
research
on
SMPs
primarily
focuses
utilization
of
a
single
source
stimuli
(e.g.,
electricity,
magnetism,
light,
etc.),
which
heavily
restricts
complex
circumstances.
In
this
study,
novel
approach
is
developed
fabricate
multi‐layer
electrically/magnetically
dual‐driven
composites
(ML‐EMSMCs)
based
magnetic
field‐assisted
digital
light
processing
(MF‐DLP)
4D
printing
technique.
The
fabricated
ML‐EMSMCs
contain
alternating
high
electric
conductive
layers
(up
5.37
×
10
−3
S
cm
−1
)
responsive
(10.7
emu
g
),
enabling
Joule
heat‐based
high‐frequency
field
induction‐based
Furthermore,
exhibited
excellent
behavior,
good
formability,
properties.
techniques
allows
for
alignment
particles
with
unidirectional
field,
significantly
improving
recovery
speed.
photocurable
SMP
shed
development
multiple
functionalities.
Journal of Materials Research and Technology,
Год журнала:
2024,
Номер
28, С. 4674 - 4693
Опубликована: Янв. 1, 2024
Additive
manufacturing
(AM),
also
known
as
3D
printing,
has
attracted
a
lot
of
attention
in
science
and
technology
recent
years.
Improvement
AM
processes
materials
are
necessary,
particularly
for
structural
load-bearing
components
mechanical
applications.
The
addition
nano-fillers
can
potentially
improve
the
properties
additively
manufactured
components,
making
them
suitable
Carbon
nanofillers
like
graphene
carbon
nanotubes
special
interest
due
to
their
exceptional
properties.
Several
studies
have
already
demonstrated
use
improving
electrical
printed
facilitating
electronic
However,
focusing
on
applications
been
limited,
not
widely
known.
This
review
seeks
fill
this
gap
by
exploring
effect
thermal
parts
parameters
print
orientation,
nanofiller
method,
dispersion
explored.
points
out
that
there
improvements
addition,
which
makes
more
application.
Advanced Materials Technologies,
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 18, 2024
Abstract
This
review
delves
into
the
progress
made
in
additive
manufacturing
through
incorporation
of
conductive
fillers
nanocomposites.
Emphasizing
critical
role
percolation
and
conductivity,
study
highlights
advancements
material
selection,
particularly
focusing
on
carbon
nanotubes
with
low
thresholds.
The
practical
applications
these
nanocomposites
polymer
composites
are
explored,
emphasizing
understanding
Furthermore,
present
paper
investigates
potential
materials
as
lightweight
alternatives
for
electromagnetic
interference
shielding
(EMI),
key
sectors
such
automotive
aerospace
industries.
integration
advanced
materials,
modeling
techniques,
standardization
is
discussed
pivotal
successful
implementation.
Overall,
underscores
significant
strides
enhancing
electrical
properties
capabilities
strategic
use
filler
manufacturing.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(16), С. 9747 - 9755
Опубликована: Янв. 1, 2024
Micro-porous
and
micro-dense
3D
RGO
frameworks
prepared
by
embedded
printing
are
reported,
the
exhibit
high
electrical
conductivity,
mechanical
strength,
excellent
electromagnetic
interference
shielding
properties.
Chemical Reviews,
Год журнала:
2024,
Номер
124(7), С. 3978 - 4020
Опубликована: Март 28, 2024
Photopolymers
have
been
optimized
as
protective
and
decorative
coating
materials
for
decades.
However,
with
the
rise
of
additive
manufacturing
technologies,
vat
photopolymerization
has
unlocked
use
photopolymers
three-dimensional
objects
new
material
requirements.
Thus,
originally
highly
cross-linked,
amorphous
architecture
cannot
match
expectations
modern
anymore,
revealing
largely
unanswered
question
how
diverse
properties
can
be
achieved
in
photopolymers.
Herein,
we
review
microstructural
features
soft
matter
should
designed
implemented
to
obtain
high
performance
materials.
We
then
translate
these
findings
into
chemical
design
suggestions
enhanced
printable
Based
on
this
analysis,
found
heterogenization
most
powerful
tool
tune
photopolymer
performance.
By
combining
toolbox
analytical
characterization,
examine
current
strategies
physical
(fillers,
inkjet
printing)
(semicrystalline
polymers,
block
copolymers,
interpenetrating
networks,
induced
phase
separation)
put
them
a
scientific
context
develop
roadmap
improving
diversifying
photopolymers'
Materials,
Год журнала:
2023,
Номер
16(16), С. 5681 - 5681
Опубликована: Авг. 18, 2023
Three-dimensional
(3D)
printing,
alternatively
known
as
additive
manufacturing,
is
a
transformative
technology
enabling
precise,
customized,
and
efficient
manufacturing
of
components
with
complex
structures.
It
revolutionizes
traditional
processes,
allowing
rapid
prototyping,
cost-effective
production,
intricate
designs.
The
3D
printed
graphene-based
materials
combine
graphene’s
exceptional
properties
manufacturing’s
versatility,
offering
precise
control
over
structures
enhanced
functionalities.
To
gain
comprehensive
insights
into
the
development
graphene
graphene/polymer
composites,
this
review
delves
their
fabrication
methods,
unique
structural
attributes,
multifaceted
applications
across
various
domains.
Recent
advances
in
printable
materials,
apparatus
characteristics,
typical
printing
techniques
for
composites
are
addressed,
including
extrusion
methods
(direct
ink
writing
fused
deposition
modeling),
photopolymerization
strategies
(stereolithography
digital
light
processing)
powder-based
techniques.
Multifunctional
energy
storage,
physical
sensor,
stretchable
conductor,
electromagnetic
interference
shielding
wave
absorption,
well
bio-applications
highlighted.
Despite
significant
advancements
its
polymer
innovative
studies
still
necessary
to
fully
unlock
inherent
capabilities.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(9), С. 5348 - 5356
Опубликована: Янв. 1, 2024
A
porous
hydrogel
was
constructed
through
polymerization-induced
phase
separation
and
DLP
3D
printing.
After
in
situ
formation
of
an
interconnected
polypyrrole
network,
the
hybrid
shows
exceptional
electrical
conductivity
264
S
m
−1
.
Chemical Engineering Journal,
Год журнала:
2024,
Номер
496, С. 153759 - 153759
Опубликована: Июль 5, 2024
Multifunctional
components
are
pivotal
for
the
physical
intelligence
of
synthetic
robots,
mirroring
multifaceted
roles
seen
in
natural
organisms.
Achieving
such
complexity
is
challenged
by
rigidity
and
intricate
assembly
required
monofunctional
parts
difficulty
designing
materials
that
respond
distinctly
to
multiple
stimuli.
A
key
challenge
developing
multifunctional
devices
co-evolve
intrinsically
multistimuli-responsive
with
their
fabrication
methods.
In
this
context,
mixed
ionic-electronic
conductivity
(MIEC)
stand
out,
as
dual
enables
concurrent
processing
diverse
signals.
However,
lack
precise
techniques
has
restricted
full
exploitation
MIECs
creating
multimaterial,
complex-shaped,
hierarchically
structured
devices.
We
introduce
high-conductivity
soft
ionogel/single-walled
carbon
nanotube
(SWCNT)
MIEC
composites
(ISMCs),
3D-printed
high
resolution
using
vat
photopolymerization
(VPP).
These
showcased
pressure–temperature
sensors
capable
detecting
pressure
thanks
a
SWCNT
network
sensing
temperature
broad
range
sensitivity
owing
ionic
an
liquid
(IL).
suggest
electronic
(1.82
mS/cm)
(1.02
conductivities,
combined
precise,
single-step
VPP
3D-printing,
lay
groundwork
versatile,
wide
applications.
Polymer Composites,
Год журнала:
2024,
Номер
45(7), С. 6588 - 6605
Опубликована: Фев. 15, 2024
Abstract
Graphene‐loaded
triiron
tetraoxide/silicone‐rubber
composites
containing
highly
loaded
graphene‐loaded
Fe
3
O
4
(Fe
@RGO)
particles
were
fabricated
using
static
magnetic
field‐induced
alignment.
The
@RGO
characterized
through
Fourier
transform
infrared,
x‐ray
diffraction,
SEM,
and
XPS
analyses.
Subsequently,
the
influence
of
added
material
strength
field
on
alignment
distribution
filler
examined
a
synergistic
combination
SEM
Raman
spectroscopy.
electrical
conductivity
electromagnetic
shielding
properties
assessed.
increased
with
increasing
addition,
25
wt%
mixture
had
fastest
curing
rate
maximum
torque,
continued
increase
in
addition
led
to
occurrence
many
defects.
Concurrently,
progressively
enhances
augmentation
strength.
synthesized
at
180
mT
exhibit
most
substantial
alignment,
facilitating
establishment
effective
conductive
pathways.
This
results
notable
enhancement
effectiveness,
approximately
400%
greater
than
that
pure
silicone
rubber
around
40%
higher
non‐aligned
composites.
approach
introduces
novel
concept
for
shaping
structural
design
flexible
materials.
Highlights
Highly
was
prepared
by
self‐assembly.
continuous
phase
structure
oriented
Fully
promotes
formation
reduced
SER
13%
SEA
67%.
