Polymer Composites,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 17, 2024
Abstract
Silicon
carbide
(SiC)/shape‐memory
polyurethane
(SMPU)
soft
robots
possess
programmable
shapes
and
dual‐drive
capabilities
based
on
electrical
thermal
methods.
Enhancing
the
conductivity
(TC)
of
these
composite
materials
effectively
enhances
driving
performance
robots.
In
this
study,
we
tune
interfacial
thickness
between
SiC
particles
SMPU
polymer
matrix
to
regulate
TC
composites.
The
optimized
exhibits
a
244%
increase
in
in‐plane
153%
out‐of‐plane
TC.
Furthermore,
optimization
significantly
speed
efficiency
This
study
reveals
that
is
key
factor
regulating
heat
transfer,
potentially
introducing
new
approach
for
reducing
resistance
materials.
contributes
deeper
understanding
heat‐
transfer
mechanisms
establishes
theoretical
framework
designing
fabricating
advanced
Highlights
Interfacial
mechanism
was
revealed.
primarily
controls
transfer.
conductivities
prepared
composites
were
enhanced
by
153%,
respectively,
modifying
thickness.
multifunctional
improved
due
microscale
mechanisms.
European Polymer Journal,
Год журнала:
2024,
Номер
205, С. 112718 - 112718
Опубликована: Янв. 2, 2024
In
the
contemporary
era,
novel
manufacturing
technologies
like
additive
(AM)
have
revolutionized
different
engineering
sectors
including
biomedical,
aerospace,
electronics,
etc.
Four-dimensional
(4D)
printing
aka
AM
of
smart
materials
is
gaining
popularity
among
scientific
community,
which
has
excellent
ability
to
make
soft
structures
such
as
robots,
actuators,
and
grippers.
These
are
developed
by
applying
various
stimuli
pH,
temperature,
magnetic
field,
many
combinations
onto
materials.
Stimuli
in
3D
permit
shape-morphing
behaviors
bending,
twisting,
folding,
swelling,
rolling,
shrinking,
origami,
or
locomotion.
A
wide
variety
can
be
fabricated
through
incorporation
hard
particles
into
resulting
magneto-active
(MASMs).
With
this
integration,
magneto-thermal
coupling
actuation
allows
diverse
magneto-deformations,
facilitating
development
personalized
devices
that
capable
enhanced
deformation.
review,
guidelines
provided
on
for
MASMs
polymers
(MAPs),
composites,
hydrogels
(MAHs)
booming
flexible
wearable
biomimetic
devices.
Moreover,
3D-printed
robotics
an
outstanding
capacity
adapt
complicated
situations
advanced
actuating
applications.
Finally,
some
current
challenges
emerging
areas
exciting
technology
been
proposed.
Lastly,
it
anticipated
technological
advancements
developing
intelligent
will
a
significant
impact
design
real-world
Polymers,
Год журнала:
2024,
Номер
16(8), С. 1087 - 1087
Опубликована: Апрель 12, 2024
The
flexibility
and
adaptability
of
soft
robots
enable
them
to
perform
various
tasks
in
changing
environments,
such
as
flower
picking,
fruit
harvesting,
vivo
targeted
treatment,
information
feedback.
However,
these
fulfilled
functions
are
discrepant,
based
on
the
varied
working
driving
methods,
materials.
To
further
understand
principle
research
emphasis
robots,
this
paper
summarized
current
status
from
aspects
actuating
methods
(e.g.,
humidity,
temperature,
PH,
electricity,
pressure,
magnetic
field,
light,
biological,
hybrid
drive),
materials
(like
hydrogels,
shape-memory
materials,
other
flexible
materials)
application
areas
(camouflage,
medical
devices,
electrical
equipment,
grippers,
etc.).
Finally,
we
provided
some
opinions
technical
difficulties
challenges
comprehensively
comprehend
lucubrate
their
applications,
improve
quality
our
lives.
Applied Materials Today,
Год журнала:
2024,
Номер
38, С. 102243 - 102243
Опубликована: Май 22, 2024
Sandwich
panels,
characterized
by
their
solid
exterior
and
thick,
soft
core,
find
extensive
applications
ranging
from
maritime
to
aerospace
sectors
due
exceptional
resilience
energy
absorption/dissipation
capabilities.
The
natural
limpet,
known
for
its
mechanical
loading,
serves
as
inspiration
in
the
present
research
introduce
innovative
repairable
core
shells.
Limpet-inspired
shells
with
elasto-plastic
brittle
behaviors
are
designed
3D/4D
printed
using
polylactic
acid
(PLA)
filaments
resins
via
fused
filament
fabrication
(FFF)
liquid
crystal
display
(LCD)
techniques.
While
PLA
exhibits
an
response
a
shape-recovery
feature,
resin
results
structures
LCD-printed
design.
study
demonstrates
that
FFF-printed
shell
can
fully
recover
residual
plastic
deformations,
while
fracture
behavior
very
similar
limpet
properties.
A
nonlinear
finite
element
model
(FEM)
is
also
developed
replicate
large
deformations
of
samples
under
quasi-static
compression
high
level
accuracy.
Experimental
numerical
reveal
material,
behavior,
geometry
close
result
maximum
dissipation
per
unit
mass.
Two
bio-inspired
cores
then
tessellated
new
class
sustainable
sandwich
panels
supreme
recoverability,
resiliency,
repairability.
three-point
bending
test
numerically
carried
out
on
FEM,
absorption
capacities
studied.
Results
demonstrate
proposed
achieve
almost
7.33
1.17
times
higher
mass
than
those
based
recycled
thermoplastic
bottle
cap
core.
This
pioneering
sets
benchmark
structural
design
terms
repairability,
sustainability.
