Multifunctional Polyurethane Exhibiting High Mechanical Performance and Shape‐Memory‐Assisted Self‐Healing
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 30, 2025
Abstract
Polymeric
materials
often
face
inherent
trade‐offs
between
mechanical
performance
and
self‐healing
capabilities,
which
presents
significant
challenges
to
their
development
practical
application.
Here,
an
effective
strategy
is
reported
overcome
these
limitations.
By
introducing
a
highly
crystalline
polyol—characterized
by
its
chain
folding
storage
length—and
coordination
bonds
into
polyurethane,
exceptional
balance
of
high
tensile
strength
(47.18
±
2.35
MPa),
elongation
at
break
(5952.72
254.20%),
outstanding
toughness
(1396.39
90.05
MJ
m
−3
),
hardness
(shore
D
43.8
0.8)
achieved,
while
also
maintaining
intrinsic
properties.
The
material's
facilitated
the
water
solubility
polyol
(polyethylene
glycol,
PEG),
enables
rapid
healing
welding
low
temperatures
(4
°C)
with
aid
water.
Additionally,
shape‐memory
recovery
force
further
enhances
crack
closure
healing,
contributing
durability.
This
unique
combination
capabilities
underscores
potential
this
material
for
advanced
applications
that
require
both
properties
robust
functionality.
Язык: Английский
Advanced low-temperature self-healable bio-polyurethanes with double-alkane-tailed ringing units for applications in self-powered flexible control panels
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 160019 - 160019
Опубликована: Янв. 1, 2025
Язык: Английский
Advanced Multifunctional Self-Healing Composites for the Integration of Wear Resistance and Damage Monitoring
Опубликована: Янв. 1, 2025
Язык: Английский
Amphiphilic fluorinated polynorbornene/silicone-based polyurea dual-network organogels with mechanical robustness, self-healing and anti-icing capability
Progress in Organic Coatings,
Год журнала:
2025,
Номер
204, С. 109274 - 109274
Опубликована: Март 30, 2025
Язык: Английский
Advanced multifunctional self-healing composites for the integration of wear resistance and damage monitoring
Tribology International,
Год журнала:
2025,
Номер
unknown, С. 110723 - 110723
Опубликована: Апрель 1, 2025
Язык: Английский
Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 28, 2025
Abstract
Liquid‐free
ion‐conductive
elastomers
with
excellent
mechanical
and
electrical
conductivity
are
widely
used
in
flexible
sensors,
wearable
devices,
soft
touch
screens,
supercapacitors.
However,
the
inherent
contradiction
between
properties
often
limits
development
of
liquid‐free
elastomers.
Therefore,
preparation
both
high
ionic
remains
a
major
challenge.
In
this
study,
polyurethane
elastomer
multiple
crosslinking
microphase‐separated
structures
were
designed,
inspired
by
“brick
wall”
structure
pearl
layer.
A
polyurethane‐based
strength
outstanding
ion‐conducting
was
prepared
introducing
lithium
bis(trifluoromethane)sulfoximide
(LiTFSI)
into
elastomer.
FLICE‐110%
had
(5.46
MPa),
exceptional
elongation
at
break
(1213%),
(3.29
×
10
−4
S
cm
−1
),
fracture
energy
(6.25
kJ
m
−2
).
Flexible
sensors
based
on
have
realized
applications
multi‐channel
strain
remote‐controlled
robots.
addition,
we
successfully
recovered
LiTFSI
from
The
these
will
be
expected
to
show
wide
range
skin,
robotics,
human‐machine
interactions.
Язык: Английский