Combining
the
efficient
barrier
and
self-repairing
effects
into
2D
lamellar
materials
has
been
an
emerging
tactic
for
developing
prominent
anti-corrosion
coatings.
Herein,
a
cerium/2-methylimidazole
metal-organic
framework
(Ce-MOF)
was
grown
in-situ
on
surface
of
ultrathin
α-ZrP
nanosheets
with
favorable
dispersibility.
The
parallel
arrangement
α-ZrP-based
among
epoxy
polymer
matrix
were
driven
by
shear
force
from
blade-coating
technology.
In
current
research
composite
anti-corrosive
coatings,
prepared
coating
demonstrated
strongest
physical
optimal
ability,
which
may
pave
feasible
route
to
design
smart
protective
coatings
various
corrosion
types
such
as
filiform
corrosion.
Advanced Materials,
Год журнала:
2024,
Номер
36(37)
Опубликована: Март 19, 2024
Abstract
2D
nanomaterials,
with
extraordinary
physical
and
chemical
characteristics,
have
long
been
regarded
as
promising
nanofillers
in
organic
coatings
for
marine
corrosion
protection.
The
past
decade
has
witnessed
the
high‐speed
progress
of
nanomaterial‐reinforced
composite
coatings,
plenty
breakthroughs
achieved
yet.
This
review
covers
an
in‐depth
all‐around
outline
up‐to‐date
advances
nanomaterial‐modified
employed
protection
realm.
Starting
from
a
brief
introduction
to
preparation
strategies
properties
are
illustrated.
Subsequently,
diverse
models
based
on
also
introduced,
including
barrier,
self‐healing,
well
cathodic
protection,
respectively.
Furthermore,
computational
simulations
critical
factors
clarified
detail.
Finally,
remaining
challenges
prospects
nanomaterials
reinforced
highlighted.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(10), С. 13114 - 13131
Опубликована: Март 1, 2024
Extensive
utilization
in
various
settings
poses
extra
requirements
of
coatings
beyond
just
anticorrosion
properties.
Herein,
8-hydroxyquinoline
(8-HQ)
intercalated
CaAl-based
layered
double
hydroxide
(CaAl-8HQ-LDH)
was
loaded
on
reduced
GO
(rGO)
through
a
one-pot
hydrothermal
reaction,
which
employed
as
the
nanofiller
endowing
epoxy
(EP/CaAl-8HQ
LDH@rGO)
with
excellent
flame-retardancy
while
ensuring
efficient
protection
for
mild
steel.
Results
electrochemical
impedance
spectroscopy
(EIS)
demonstrated
durability
EP/CaAl-8HQ
LDH@rGO-coated
specimen,
at
lowest
frequency
(|Z|0.01Hz)
maintained
1.84
×
1010
Ω
cm2
after
120
days
immersion
3.5
wt
%
NaCl
solution.
Even
scratched
LDH@rGO
system,
only
slight
decline
|Z|0.01Hz
observed
during
180
h
exposure
to
solution,
indicating
self-healing
feature
supported
by
salt
spray
tests.
UL-94
burning
tests
revealed
V-0
rating
improved
thermostability.
Strong
physical
barrier
from
two-dimensional
rGO
and
release
8-HQ
LDH
interlayers
accounted
anticorrosive
However,
O2-concentration
dilution
charring-layer
promotion
governed
flame-retardant
behavior
nanocomposite
coating.
The
intercomponent
synergy
nanofillers
achieved
this
work
may
provide
useful
reference
designing
multifunctional
coatings.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Дек. 4, 2023
The
main
goal
of
this
study
is
to
develop
an
epoxy
coating
coupled
with
organic-inorganic
hybrid
nanocomposite
that
can
be
used
as
a
corrosion-inhibiting
pigment
on
carbon
steel.
Herein,
polypyrrole
nanotubes
(PPy-NTs),
nanotubes/g-C3N4
(PPy-NTs/g-C3N4)
and
novel
nano-composite
nanotubes/g-C3N4/ZnO
(PGZ)
were
prepared
by
facile
wet
impregnation
approach.
developed
pigments
investigated
using
XRD,
FTIR,
FE-SEM
equipped
EDS.
Electrochemical
impedance
spectroscopy
(EIS)
polarization
measurements
assess
the
behavior
anticorrosion
performance
resin
coatings.
EIS
experiments
revealed
introducing
nano-pigments
neat
coatings
enhanced
charge
transfer
resistance.
three
was
assessed
follows:
PGZ
˃
PPy-NTs/g-C3N4˃
PPy-NTs.
