Constructing Robust and Multifunctional Superamphiphobic Surfaces by Using Two Different Nanostructures of Silicon Dioxide
Langmuir,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 2, 2025
Superamphiphobic
surfaces,
combining
both
superhydrophobic
and
superoleophobic
properties,
show
tremendous
potential
applications
in
various
fields.
However,
the
complicated
procedures,
expensive
equipment,
poor
mechanical
robustness
durability
seriously
limit
their
commercialization.
In
this
study,
superamphiphobic
surfaces
have
been
fabricated
by
a
simple
spraying
method
using
two
different
nanostructures
of
silicon
dioxide.
The
nanosheet
silica
(about
80
nm)
constructed
large-scale
layer
structure,
nanospherical
30
interweaved
with
to
form
double-scale
"reentrant"
micronano
structure.
contact
angle
(CA)
sliding
(SA)
were
estimated
be
158°
1°
for
water
droplet,
while
CA
SA
measured
154°
3°
olive
oil,
meeting
requirement.
On
other
hand,
control
that
only
adopted
or
just
satisfy
Owing
similar
chemical
components
silica,
mixed
very
well
uniformly
dispersed,
endowing
whole
surface
same
behavior.
More
importantly,
mixture
was
sprayed
on
wet
poly(amide-imide)
(PAI)
substrate,
making
them
easily
enter
into
PAI
film.
This
unique
structure
is
helpful
improving
durability.
Thus,
wettability
nearly
unaffected
even
though
it
underwent
lots
tests,
including
sandpaper
abrasion,
ultrasonic
treatment,
acid–base
immersion,
UV
irradiation,
boiling
jet
impact.
As
expected,
antifouling,
self-cleaning,
icing
delay
performances,
time
prolonged
from
55
342
s.
It
believed
robust
multifunctions
antiliquid-adhesion,
anticorrosion,
anti-icing
enormous
industrial
environment.
Язык: Английский
Inadequacy of Peak Detachment Force in Describing Ice Adhesion Strength: the Critical Role of Shear Force–Time Evolution in Icephobicity Assessment
Advanced Engineering Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 1, 2025
Icephobicity
encompasses
a
multifaceted
definition
that
necessitates
evaluations
across
various
scales,
from
single
droplets
to
larger
ice
specimens.
The
predominant
method
for
evaluating
icephobicity
performance
is
adhesion
strength
(IAS)
testing.
Multiple
geometries
and
scales
testing
are
proposed.
conventional
key
parameter
derived
this
test
analysis
the
peak
detachment
force
value,
which
subsequently
converted
IAS
(stress).
Recent
studies
raise
questions
regarding
approach
challenge
its
adequacy
comprehensive
assessment.
To
achieve
more
profound
understanding
of
phenomena
involved,
study
utilizes
three
distinct
benches,
all
in
horizontal
shear
geometry
but
under
varying
conditions.
findings
indicate
values
do
not
necessarily
reflect
actual
behavior.
However,
versus
time
evolution
(obtained
force–time
plots)
can
provide
valuable
insights
into
icephobicity,
including
viscoelastic
response
coatings
underlying
failure
mechanisms.
beneficial
aspects
additionally
validated
context
investigating
coating
durability
through
consecutive
(icing/ice
detachment)
cycles,
wherein
methodologies,
such
as
wetting
morphological
parameters,
fail
capture
deterioration.
Язык: Английский