Journal of Applied Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 18, 2025
ABSTRACT
Vehicles
and
electronics
rely
on
detachable
reusable
hot‐melt
adhesives,
but
they
are
hard
to
reach
structural
bonding
strength
date.
In
this
work,
a
strategy
reconciling
cohesive
energy
adhesion
force
was
developed
overcome
the
trade‐off
relation
between
bulk
strength.
Specifically,
prepolymer
of
polytetrahydrofuran
ether
glycol
(PTMEG)
capped
by
isophorone
diisocyanate
(IPDI)
deliberately
extended
different
content
4‐aminophenyl
disulfide
(AD)
3,4‐dihydroxybenzaldehyde
(DBD),
aiming
at
manipulating
chain
length
thereafter
aggregation
state.
It
found
that
adhesive
PU‐PAD1.4
has
reached
an
ideal
balance
cohesion
adhesion.
This
not
only
boasts
high
possesses
re‐adhesion
capabilities
also
demonstrates
exceptional
performance
variety
metal
substrates,
especially
aluminum,
where
its
reaches
up
12.13
MPa.
Moreover,
self‐healing
feature
is
particularly
remarkable,
as
it
can
recover
98.28%
original
mechanical
properties
after
being
heated
80°C
for
just
30
min,
which
mainly
due
rapid
reorganization
hydrogen
bonds.
With
outstanding
toughness
strength,
PU‐PADx
offers
innovative
solutions
environmentally
friendly
high‐precision
processing
industries.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
Supercapacitors
that
can
function
when
in
direct
contact
with
human
tissue
are
of
paramount
importance
for
wearable
bioelectronics
but
face
mismatching
biological
and
its
movement.
Herein,
we
developed
a
zwitterion
hydrogel
elastomer
electrode-based
all-hydrogel
supercapacitor
(AHSC)
characterized
by
good
energy
storage
properties,
bioadhesion,
body
movement-matching
mechanical
biocompatibility.
These
functions
were
realized
integrating
[2-(methacryloyloxy)ethyl]dimethyl-(3-propylsulfonate)ammonium
hydroxide
(DMAPS)
hydroxyethyl
acrylate
(HEA)-copolymerized
electrode
(DMAPS-HEA)
redox-active
nanofillers.
This
endowed
AHSC
properties
Redox-active
nanofillers
designed
the
structure
reduced
graphene
oxide
(rGO)-anchored
cobalt/nickel
bimetallic
metal-organic
framework
(Co/Ni
MOF)
using
polydopamine
(PDA).
The
Co/Ni
MOF
contributes
to
high
performance.
rGO
enhances
conductivity,
whereas
PDA
introduces
catechol
groups,
contributing
bioadhesion.
serves
as
flexible
alternative
traditional
rigid
low-tissue-affinity
power
supply
devices
bioelectronics.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 17, 2025
Abstract
Detachable
pressure
sensitive
adhesives
(PSAs)
show
great
potential
in
recycling
the
bonded
components
toward
a
circular
economy,
yet
existing
challenges
such
as
strict
conditions,
and
time‐consuming,
adhesive
residues
after
detachment
significantly
hinder
developments
applications.
Here,
ionoadhesive
(PSIA)
tape
is
first
designed
that
has
excellent
interfacial
toughness
to
various
substrates
(≈1.8
kJ
m
−2
)
can
be
electrically
detached
with
high
efficiency
under
safe
voltages
(≥90%
within
1
min).
The
unique
properties
are
achieved
by
introducing
liquid‐free
lithium
salt
into
poly(ionic
liquids)
establish
multiple
non‐covalent
interactions
(NCIs)
including
strong
electrostatic
interactions,
moderate
bonds,
weak
ion‐dipole
hydrogen
bonding
interactions.
NCIs
not
only
strengthen
physical
crosslinking
networks
improve
mechanical
performances
but
promote
dissociation
of
ion
transport
properties.
Additionally,
elaborately
low
T
g
intrinsic
modulus
features
endow
PSIA
adhesion
reworkability,
recyclability,
re‐adhesion
ability.
It
believed
this
work
offers
new
strategy
for
designing
detachable
fully
recyclable
tapes,
which
facilitates
reuse
reduces
industrial
waste.
Advanced Healthcare Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 22, 2025
Abstract
The
hydrogel
adhesives
with
strong
tissue
adhesion
and
biological
characteristics
adhm202404447are
urgently
needed
for
injury
sealing
repair.
However,
the
negative
correlation
between
mechanical
strength
poses
a
challenge
their
practical
application.
Herein,
bio‐inspired
cohesive
enhancement
strategy
is
developed
to
prepare
adhesive
simultaneously
enhanced
adhesion.
double
cross‐linked
network
achieved
through
cooperation
polyacrylic
acid
grafted
N‐hydroxy
succinimide
crosslinked
by
tannic
cohesion‐enhanced
ion
crosslinking
of
sodium
alginate
Ca
2+
.
Such
unique
structure
endows
resultant
excellent
strength.
capable
various
organs
in
vitro,
exhibits
satisfactory
on‐demand
removability,
antibacterial,
antioxidant
properties.
As
proof
concept,
not
only
effectively
halts
non‐compressible
hemorrhages
beating
heart
femoral
artery
models
rats,
but
also
accelerates
healing
infected
wound
inhibiting
bacteria
reducing
inflammation.
Overall,
this
advanced
promising
as
an
emergency
rescue
that
enables
robust
closure,
timely
controlling
bleeding,
promoting
damaged
healing.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 25, 2024
Abstract
Polyphenol
hydrogels
have
found
widespread
application
in
wound
healing,
bone
repair,
drug
delivery,
and
biosensors
due
to
their
robust
wet
adhesion,
high
ductility,
excellent
self‐healing
ability.
However,
these
often
exhibit
low
intrinsic
cohesion,
which
limits
overall
adhesive
strength.
Enhancing
cohesion
is
critical
for
improving
both
the
adhesion
mechanical
properties
of
hydrogels,
thereby
expanding
utility
biomedical
fields.
This
review
begins
by
exploring
strategies
enhance
polyphenol
hydrogel
adhesives,
detailing
modifications
that
act
individually
or
synergistically.
The
importance
temporally
regulating
emphasized
accommodate
various
applications
environmental
conditions.
Finally,
this
paper
discusses
remaining
challenges
regulation
outlines
prospects
future
research.
It
hoped
comprehensive
will
provide
new
insights
into
development
advanced
polyphenolic
adhesives
contribute
design
“smart
adhesives”
increasingly
complex
needs
applications.
