ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(43), С. 59188 - 59201
Опубликована: Окт. 16, 2024
Smart
shape-changing
structures
in
aerospace
applications
are
vulnerable
to
damage
harsh
environments.
Balancing
high
mechanical
performance
with
self-repair
capabilities
poses
a
challenge
due
inherent
trade-offs
between
strength
and
flexibility.
To
address
this
challenge,
an
asymmetric
bilayer-structured
actuator
was
fabricated
using
commercially
available
continuous
carbon
fiber
tows
(CFs)
as
the
passive
layer
dynamic
cross-linked
epoxy
vitrimer
active
layer.
The
construction
of
vitrimer-CF
involves
simple
scalable
hot-pressing
process,
resulting
tensile
234
MPa
interfacial
bonding
405
N·m–1.
This
exhibits
remarkable
deformation
capability
(210°/7
s)
efficient
ability
under
various
stimuli,
including
thermal
(60–160
°C),
light
(0.4–1.0
W·cm–2),
electric
(2–4
V),
solvent
(acetone).
By
adjustment
orientation
angle
CFs,
complex
left-handed
right-handed
curling
can
be
achieved.
Leveraging
insights
from
photothermal/electrothermal
actuation
mechanisms,
quadruped
crawling
robot
is
developed
capable
4
cm
single
illumination.
lift
objects
45
times
its
weight
when
subjected
stimuli.
Additionally,
flap
constructed
achieve
change
63°
within
10
s
stimulus,
enabling
remote
control
over
aircraft
flight
angle.
These
results
demonstrate
potential
for
advanced
intelligent
structures.
Textiles,
Год журнала:
2025,
Номер
5(2), С. 13 - 13
Опубликована: Апрель 4, 2025
Smart
textiles
are
an
evolving
field,
but
challenges
in
durability,
washing,
interfacing,
and
sustainability
persist.
Widespread
adoption
requires
robust,
lightweight,
fully
integrated
fiber-based
conductors.
This
paper
proposes
using
ultralong
carbon
nanotube
(UCNT)
yarns
with
a
width-to-length
ratio
of
several
orders
magnitude
larger
than
typical
fibers.
These
enable
the
manufacturing
stable,
workable
structures,
composed
network
twisted
fibers
(tows),
which
suitable
for
fabric
integration.
Our
research
includes
creation
textile
prototype
demonstrators
coated
non-coated
UCNT
yarns,
tested
under
military-grade
standards
both
mechanical
durability
electric
functionality.
The
were
evaluated
their
electrical
properties
washability,
abrasion,
weathering.
Notably,
polymer-coated
demonstrated
improved
performance,
showing
promising
results.
However,
washing
tests
revealed
presence
nanofibers
residue,
raising
concerns
due
to
classification
as
hazards
by
World
Health
Organization.
examines
sources
fiber
release
discusses
necessary
improvements
coating
formulations
testing
protocols
mitigate
loss
enhance
practical
viability.
findings
underscore
potential
limitations
military
applications.
Processes,
Год журнала:
2024,
Номер
12(5), С. 927 - 927
Опубликована: Май 1, 2024
Textiles
are
often
used
to
protect
people
from
cold
environments.
While
most
garments
designed
for
temperatures
not
far
below
0
°C,
very
regions
on
the
earth
near
poles
or
mountains
necessitate
special
clothing.
The
same
is
true
homeless
who
have
few
possibilities
warm
up
workers
in
cooling
chambers
and
other
Passive
insulating
clothing,
however,
can
only
retain
body
heat.
Active
heating,
hand,
necessitates
energy,
e.g.,
by
batteries,
which
usually
relatively
heavy
be
recharged
regularly.
This
review
gives
an
overview
of
energy-self-sufficient
textile
solutions
environments,
including
energy
harvesting
textile-based
textile-integrated
solar
cells;
piezoelectric
sensors
shoes
possibilities;
storage
supercapacitors
batteries;
heating
electric
phase-change
materials.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(43), С. 59188 - 59201
Опубликована: Окт. 16, 2024
Smart
shape-changing
structures
in
aerospace
applications
are
vulnerable
to
damage
harsh
environments.
Balancing
high
mechanical
performance
with
self-repair
capabilities
poses
a
challenge
due
inherent
trade-offs
between
strength
and
flexibility.
To
address
this
challenge,
an
asymmetric
bilayer-structured
actuator
was
fabricated
using
commercially
available
continuous
carbon
fiber
tows
(CFs)
as
the
passive
layer
dynamic
cross-linked
epoxy
vitrimer
active
layer.
The
construction
of
vitrimer-CF
involves
simple
scalable
hot-pressing
process,
resulting
tensile
234
MPa
interfacial
bonding
405
N·m–1.
This
exhibits
remarkable
deformation
capability
(210°/7
s)
efficient
ability
under
various
stimuli,
including
thermal
(60–160
°C),
light
(0.4–1.0
W·cm–2),
electric
(2–4
V),
solvent
(acetone).
By
adjustment
orientation
angle
CFs,
complex
left-handed
right-handed
curling
can
be
achieved.
Leveraging
insights
from
photothermal/electrothermal
actuation
mechanisms,
quadruped
crawling
robot
is
developed
capable
4
cm
single
illumination.
lift
objects
45
times
its
weight
when
subjected
stimuli.
Additionally,
flap
constructed
achieve
change
63°
within
10
s
stimulus,
enabling
remote
control
over
aircraft
flight
angle.
These
results
demonstrate
potential
for
advanced
intelligent
structures.
