As
oceanic
activities
expand,
the
strategic
importance
of
designing
multifunctional
materials
suitable
for
underwater
applications
becomes
increasingly
apparent.
Underwater
self-healing
offer
significant
advantages
by
autonomously
repairing
damage
in-situ
during
operations,
thereby
minimizing
resource
waste
and
enhancing
environmental
sustainability.
However,
most
do
not
have
sufficient
stability
in
aquatic
environments
due
to
presence
water-sensitive
weak
cross-linking
bonds.
Herein,
polysulfide
elastomers
capable
been
developed
through
a
straightforward,
one-step
thiol–ene
click
reaction
strategy.
This
can
occur
its
water
insensitivity.
The
abundance
disulfide
bonds
elastomer
enables
formation
coordination
with
metals,
endowing
material
outstanding
metal
adhesion
properties.
optimal
LPTM-55
shows
extraordinary
toughness
1.49
MJ/m3,
efficiency
90%
within
7
h
strength
up
1.2
MPa.
innovative
material,
characterized
curing,
capabilities,
demonstrates
potential
sealing
repair.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 30, 2025
Abstract
Despite
extensive
research
on
enhancing
the
strength,
toughness,
or
impact
resistance
of
elastomers,
materials
that
simultaneously
integrate
these
properties
remain
elusive.
In
this
work,
a
multifunctional
elastomer
is
developed
with
high
superior
and
excellent
by
designing
multiscale
structures.
The
synergistic
coupling
strong
weak
hydrogen
bonds,
rigid
ring‐flexible
chain
coordination,
precise
control
hard/soft
block
ratio
enabled
development
an
optimized
architecture
tailored
for
performance,
achieving
tensile
strength
84
MPa
toughness
450
MJ
m⁻
3
,
while
maintaining
across
varying
strain
rates.
Additionally,
incorporation
hindered
urea
dynamic
covalent
bonds
bond‐induced
localized
conjugation
effect
impart
thermal
adhesion
fluorescence
capabilities,
broadening
material's
functional
application
scenarios.
This
molecular
design
strategy
not
only
facilitates
tailoring
high‐performance
but
also
provides
new
insights
into
structure‐property
relationships
in
elastomers.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(45), P. 62639 - 62653
Published: Nov. 4, 2024
Developing
devices
emphasizing
safety
protection
is
becoming
increasingly
important
due
to
the
widespread
occurrence
of
impact
damage
and
thermal
hazards.
Herein,
F-SSG/TPU-based
circular
cavity
structure
(FC)
developed
through
a
convenient
efficient
template
method,
which
can
effectively
achieve
anti-impact
insulation
for
protection.
The
flame-retardant
shear
stiffening
gel/thermoplastic
urethane
(F-SSG/TPU)
synthesized
dynamic
interaction
between
SSG,
TPU,
modified
ammonium
polyphosphate
(APP@UiO-66-NH2)
by
thermo-solvent
reactions.
FC
dissipate
force
from
4.19
0.99
kN
at
45
cm
impacting
heights,
indicating
good
performance.
Moreover,
test
demonstrates
that
achieves
temperature
drop
76
°C
160
attributed
unique
design.
Under
continuous
shock
high-temperature
flame,
remains
intact,
its
performance
almost
undamaged.
These
results
elaborate
designed
resist
various
damage,
such
as
collision.
Then,
wearable
wristband
integrated
with
exhibits
superior
resistance
heat
properties
compared
commercial
wristbands.
In
short,
this
based
on
high-performance
F-SSG/TPU
material
shows
promising
potential
applications
in
field.
As
oceanic
activities
expand,
the
strategic
importance
of
designing
multifunctional
materials
suitable
for
underwater
applications
becomes
increasingly
apparent.
Underwater
self-healing
offer
significant
advantages
by
autonomously
repairing
damage
in-situ
during
operations,
thereby
minimizing
resource
waste
and
enhancing
environmental
sustainability.
However,
most
do
not
have
sufficient
stability
in
aquatic
environments
due
to
presence
water-sensitive
weak
cross-linking
bonds.
Herein,
polysulfide
elastomers
capable
been
developed
through
a
straightforward,
one-step
thiol–ene
click
reaction
strategy.
This
can
occur
its
water
insensitivity.
The
abundance
disulfide
bonds
elastomer
enables
formation
coordination
with
metals,
endowing
material
outstanding
metal
adhesion
properties.
optimal
LPTM-55
shows
extraordinary
toughness
1.49
MJ/m3,
efficiency
90%
within
7
h
strength
up
1.2
MPa.
innovative
material,
characterized
curing,
capabilities,
demonstrates
potential
sealing
repair.
