ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(33), P. 22021 - 22033
Published: Aug. 5, 2024
Recent
years
have
witnessed
the
explosive
development
of
highly
sensitive
smart
sensors
based
on
conductive
polymer
foam
materials.
However,
design
and
multifunctional
polymeric
composites
as
applied
in
complex
solvent
oil
environments
remain
a
critical
challenge.
Herein,
we
synthesize
vinyl-terminated
polytrifluoropropylmethylsiloxane
through
anionic
ring-opening
polymerization
to
fabricate
fluorosilicone
rubber
(FSiRF)
materials
with
nanoscale
wrinkled
surfaces
reactive
Si-H
groups
via
green
rapid
chemical
foaming
strategy.
Based
strong
adhesion
between
FSiRF
consecutive
oxidized
ketjen
black
(OKB)
nano-network,
nanocomposites
were
prepared
by
dip-coating
strategy
followed
fluoroalkylsilane
modification.
The
optimized
F-OKB@FSiRF
exhibit
outstanding
mechanical
flexibility
wide-temperature
range
(100
cycle
compressions
from
-20
200
°C),
structure
stability
(no
detached
particles
after
being
immersed
into
various
aqueous
solutions
for
up
15
days),
surface
superhydrophobicity
(water
contact
angle
154°
sliding
∼7°),
tunable
electrical
conductivity
(from
10
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
34(46)
Published: Nov. 27, 2021
Abstract
Most
organic
polymeric
materials
have
high
flammability,
for
which
the
large
amounts
of
smoke,
toxic
gases,
heat,
and
melt
drips
produced
during
their
burning
cause
immeasurable
damages
to
human
life
property
every
year.
Despite
some
desirable
results
having
been
achieved
by
conventional
flame‐retardant
methods,
application
is
encountering
more
difficulties
with
ever‐increasing
requirements
such
as
efficiency,
great
persistence,
low
release
importantly
not
deteriorating
or
even
enhancing
overall
properties
polymers.
Under
condition,
advanced
methods
developed
in
past
years
based
on
“all‐in‐one”
intumescence,
nanotechnology,
situ
reinforcement,
intrinsic
char
formation,
plasma
treatment,
biomimetic
coatings,
etc.,
provided
potential
solutions
dilemma
methods.
This
review
briefly
outlines
development,
application,
problems
including
bulk‐additive,
bulk‐copolymerization,
surface
focuses
raise,
The
future
development
further
discussed.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(48)
Published: July 17, 2023
Abstract
Polydimethylsiloxanes
(PDMS)
foam
as
one
of
next‐generation
polymer
materials
shows
poor
surface
adhesion
and
limited
functionality,
which
greatly
restricts
its
potential
applications.
Fabrication
advanced
PDMS
with
multiple
functionalities
remains
a
critical
challenge.
In
this
study,
unprecedented
self‐adhesive
are
reported
worm‐like
rough
structure
reactive
groups
for
fabricating
multifunctional
nanocomposites
decorated
MXene/cellulose
nanofiber
(MXene/CNF)
interconnected
network
by
facile
silicone
foaming
dip‐coating
strategy
followed
silane
modification.
Interestingly,
such
produces
strong
interfacial
the
hybrid
MXene/CNF
nano‐coatings.
Consequently,
optimized
have
excellent
super‐hydrophobicity
(water
contact
angle
≈159
o
),
tunable
electrical
conductivity
(from
10
−8
to
S
m
−1
stable
compressive
cyclic
reliability
in
both
wide‐temperature
range
−20
200
C)
complex
environments
(acid,
sodium,
alkali
conditions),
outstanding
flame
resistance
(LOI
value
>27%
low
smoke
production
rate),
good
thermal
insulating
performance
reliable
strain
sensing
various
stress
modes
environmental
conditions.
It
provides
new
route
rational
design
development
versatile
multifunctionalities
promising
applications
intelligent
healthcare
monitoring
fire‐safe
insulation.
Nano-Micro Letters,
Journal Year:
2022,
Volume and Issue:
14(1)
Published: April 6, 2022
Smart
fire
alarm
sensor
(FAS)
materials
with
mechanically
robust,
excellent
flame
retardancy
as
well
ultra-sensitive
temperature-responsive
capability
are
highly
attractive
platforms
for
safety
application.
However,
most
reported
FAS
can
hardly
provide
sensitive,
continuous
and
reliable
signal
output
due
to
their
undesirable
temperature-responsive,
flame-resistant
mechanical
performances.
To
overcome
these
hurdles,
herein,
we
utilize
the
multi-amino
molecule,
named
HCPA,
that
serve
triple-roles
including
cross-linker,
retardant
reducing
agent
decorating
graphene
oxide
(GO)
sheets
obtaining
GO/HCPA
hybrid
networks.
Benefiting
from
formation
of
multi-interactions
in
network,
optimized
network
exhibits
significant
increment
strength,
e.g.,
tensile
strength
toughness
increase
~
2.3
5.7
times,
respectively,
compared
control
one.
More
importantly,
based
on
P
N
doping
promoting
thermal
reduction
effect
GO
(withstanding
1200
°C
attack),
ultra-fast
response
time
(~
0.6
s)
ultra-long
alarming
period
(>
600
obtained,
representing
best
comprehensive
performance
GO-based
counterparts.
Furthermore,
fireproof
coating
is
constructed
applied
polymer
foam
exhibited
exceptional
shielding
performance.
This
work
provides
a
new
idea
designing
fabricating
desirable
coatings.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
33(9)
Published: Dec. 16, 2022
Abstract
Frequent
fire
disasters
have
caused
massive
impacts
to
the
environment,
human
beings,
and
economy.
MXene
has
recently
been
intensively
researched
as
potential
flame
retardants
provide
passive
protection
for
other
materials
via
its
physical
barrier
catalyzing
carbonization
effects.
In
parallel,
also
demonstrated
a
great
promise
creating
early
warning
sensors,
which
is
an
emerging
field
that
active
response
through
thermoelectric
effect.
This
makes
it
possible
integrate
retardancy
into
one
MXene‐based
system
on
demand.
However,
fulfilling
these
promises
needs
more
research.
Herein,
overview
of
flame‐retardant
next‐generation
smart
materials/sensors
based
derivatives
provided.
study
reviews
their
conceptual
design,
characterization,
modification
principles,
performances,
applications,
mechanisms.
A
discussion
challenges
need
be
solved
future
practical
applications
opportunities
presented.
ACS Nano,
Journal Year:
2022,
Volume and Issue:
16(12), P. 20865 - 20876
Published: Dec. 5, 2022
A
graphene
oxide
(GO)-based
smart
fire
alarm
sensor
(FAS)
has
gained
rapidly
increasing
research
interest
in
safety
fields
recently.
However,
it
still
remains
a
huge
challenge
to
obtain
desirable
GO-based
FAS
materials
with
integrated
performances
of
mechanical
flexibility/robustness,
harsh
environment-tolerance,
high-temperature
resistance,
and
reliable
warning
protection.
In
this
work,
based
on
bionic
design,
the
supermolecule
melamine
diborate
(M·2B)
was
combined
GO
nanosheets
form
supramolecular
cross-linking
nanosystems,
corresponding
GO-M·2B
(GO/MB)
hybrid
papers
nacre-like
micro/nano
structure
were
successfully
fabricated
via
gel-dry
method.
The
optimized
GO/MB
paper
exhibits
enhanced
properties,
e.g.,
tensile
strength
toughness
up
∼122
MPa
∼1.72
MJ/m3,
respectively,
which
is
∼3.5
∼6.6
times
higher
than
those
paper.
Besides,
also
shows
excellent
structural
stability
even
under
acid/alkaline
solution
immersion
water
bath
ultrasonication
conditions.
Furthermore,
due
presence
promoting
reduction
effect
atom
doping
reactions
network,
resulting
network
displays
exceptional
sensitive
response
(∼0.72
s),
ultralong
alarming
time
(>1200
showing
promising
protection
application
prospects
as
shielding
material
comprehensive
performances.
Therefore,
work
provides
inspiration
for
design
fabrication
high-performance
that
combine
functions.
