Silicone
adhesives
play
an
important
role
in
many
fields,
but
they
are
still
challenged
by
their
weak
adhesion
strength
and
long
curing
time.
Herein,
ultraviolet
(UV)-curable,
high-adhesion-strength,
aging-resistant
silicone-based
adhesive
is
realized
the
synergy
of
a
novel
methacryloxy-functionalized
silicone
resin
with
15
wt
%
acrylic
acid
(AA).
This
can
be
UV-cured
within
60
s,
shear
reaches
6.1
MPa,
which
much
higher
than
those
most
commercially
available
adhesives.
Moreover,
this
has
outstanding
aging
resistance;
its
exceeds
4
MPa
after
being
aged
at
150
°C,
immersed
water
25
°C
for
168
h,
or
treated
under
85
85%
relative
humidity
1000
h.
The
excellent
resistance
mainly
depend
on
synergism
polar
carboxyl
methacryloxy
groups
stable
Si–O–Si
skeletons.
Therefore,
will
used
electronics,
construction,
optics,
other
fields.
Nano-Micro Letters,
Journal Year:
2025,
Volume and Issue:
17(1)
Published: Feb. 7, 2025
Abstract
The
microstructure
design
for
thermal
conduction
pathways
in
polymeric
electrical
encapsulation
materials
is
essential
to
meet
the
stringent
requirements
efficient
management
and
runaway
safety
modern
electronic
devices.
Hence,
a
composite
with
three-dimensional
network
(Ho/U-BNNS/WPU)
developed
by
simultaneously
incorporating
magnetically
modified
boron
nitride
nanosheets
(M@BNNS)
non-magnetic
organo-grafted
BNNS
(U-BNNS)
into
waterborne
polyurethane
(WPU)
synchronous
molding
under
horizontal
magnetic
field.
results
indicate
that
continuous
in-plane
formed
M@BNNS
aligned
along
field
direction,
combined
bridging
structure
established
U-BNNS,
enable
Ho/U-BNNS/WPU
exhibit
exceptional
(
λ
//
)
through-plane
conductivities
⊥
).
In
particular,
addition
of
30
wt%
5
composites
reach
11.47
2.88
W
m
−1
K
,
respectively,
which
representing
194.2%
improvement
compared
single
orientation
M@BNNS.
Meanwhile,
exhibits
distinguished
capabilities
as
interface
LED
chips.
also
demonstrate
excellent
flame
retardancy,
peak
heat
release
total
reduced
58.9%
36.9%,
WPU.
Thus,
this
work
offers
new
insights
thermally
conductive
structural
flame-retardant
systems
polymer
composites,
presenting
broad
application
potential
packaging
fields.
ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(8), P. 4516 - 4524
Published: April 10, 2024
Tough
and
stretchable
self-healing
elastomers
are
highly
desired
for
applications
in
wearable
devices,
soft
robotics,
human
motion
detection.
However,
most
that
heal
at
room
temperature
suffer
from
poor
mechanical
properties.
In
this
study,
inspired
by
mussels,
a
dual
cross-linked
strategy
combines
weak
disulfide
bonds
strong
coordination
is
proposed
to
solve
the
above-mentioned
problems.
The
obtained
transparent
silicone
elastomer
shows
high
tensile
stress
(1.4
MPa),
stretchability
(2006%),
toughness
(14.7
MJ
m–3),
excellent
healing
efficiency
(97%)
temperature.
outstanding
performance
of
attributed
synergistic
effects
bonds.
network,
introduced
as
sacrificial
endow
with
property,
conductive
improving
robustness
elasticity.
Given
good
property
developed
elastomer,
it
enables
easy
construction
flexible
strain
sensors
electrical
conductivity
sensing
stability.
Our
study
provides
insights
into
development
self-healable
electronics.
Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(33), P. 14657 - 14667
Published: Aug. 6, 2024
To
achieve
the
unique
advantages
of
silicone
resin
and
free-radical/cationic
hybrid
UV-curing
mechanism,
a
UV-curable
(MTQ-TQ-T)
is
synthesized
from
commercially
available
siloxanes,
hexamethyldisiloxane
(MM,
M
segment),
phenyltrimethoxysilane
(PTMS,
T
γ-(2,3-epoxypropoxy)propyltrimethoxysilane
(KH560,
(3-methacryloxy)propyltrimethoxysilane
(KH570,
tetraethyl
orthosilicate
(TEOS,
Q
segment).
kinetics
indicates
that
polymerization
efficiency
MTQ-TQ-T
initiated
by
free-radical
cationic
dual
photoinitiators
better
than
single
photoinitiator.
As
molar
ratio
to
(C/R)
increases,
double-bond
conversion
first
increases
then
decreases,
but
epoxy
group
opposite.
The
optimal
C/R
dose
are
1.5
10
wt
%,
respectively.
After
UV-curing,
coating
has
excellent
overall
performance
including
gel
content
87.8%,
Shore
A
hardness
85,
tensile
strength
4.23
MPa,
an
impact
5.48
kJ/m2.
Its
thermal
decomposition
temperature
5
%
338
°C,
yellowing
index
only
0.98
after
aging
at
85
°C
for
72
h.
Moreover,
UVMTQ-TQ1-T0.33
(the
ratio,
T/Q
1
KH560/570
0.33)
shows
good
hydrophobicity
with
contact
angle
87°,
it
still
89°
aging.
In
addition,
adhesion
increase
groups,
where
UVMTQ-TQ1-T1
1)
shear
180°
peel
1.7
0.9
Therefore,
this
will
be
used
as
aging-resistant
coatings.
ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(15), P. 8989 - 8996
Published: July 29, 2024
Silicone
elastomers
have
been
widely
used
in
underwater
environments
as
significant
sealants
and
adhesives.
However,
silicone
usually
need
to
be
cured
air
because
excess
water
can
inhibit
or
prevent
their
curing
process.
In
this
study,
inspired
by
mussels,
we
prepared
catalyst-free
eco-friendly
using
catechol
a
green
cross-linker.
Under
mild
conditions
(pH
8.5),
catechol-
amino-functionalized
polysiloxanes
are
cross-linked
form
Michael
addition
Schiff
base
reactions.
As
an
adhesive,
it
shows
excellent
adhesion
different
materials.
The
lap
shear
strength
with
the
aluminum
substrate
is
2.1
times
higher
than
that
of
conventional
rubber,
reaching
0.62
MPa,
adhesive
tensile
reach
0.72
MPa.
Notably,
significantly
accelerate
presence
hydrogen
peroxide
solution,
which
results
very
fast
underwater.
Moreover,
as-prepared
effectively
plug
leaks
exhibit
properties
water.
Developing
bioinspired
may
shed
light
on
research
materials
offer
innovative
insight
for
mussel-inspired
