Abstract
In
spite
of
superior
magnetic
properties,
neodymium–iron–boron
(Nd‐Fe‐B)
applications
in
harsh
environments
have
been
greatly
hindered
by
their
susceptibility
to
corrosion,
humidity,
mechanical,
and
temperature
attacks.
Herein,
a
construction
strategy
robust
slippery
liquid‐infused
porous
surfaces
(SLIPS)
coatings
is
proposed
via
the
multi‐dimensional
design
surface,
bulk
coating,
interface.
The
manipulation
colloidal
states
silica
particles
chemical
hydrophobization
allows
for
building
dense
polymer
network,
enhancing
interfacial
adhesion
locking
lubricant
film
effectively.
resulting
coating
demonstrated
be
extremely
stable,
endowing
magnet
with
excellent
liquid
repellency,
anti‐corrosion,
anti‐icing
properties.
Strikingly,
no
trace
corrosion
detected
after
136‐day
immersion
3.5
wt.%
NaCl
solution
impedance
modulus
at
0.1
Hz
can
maintained
as
initial
3.31
×
10
8
Ω·cm
2
even
132‐day
immersion,
which
far
that
commercial
Ni‐Cu‐Ni,
Zn,
EP
coatings.
Additionally,
performance
low
temperatures
evidenced
delayed
icing
time
decreased
ice
strength.
Importantly,
self‐healing
property
offers
surface
intensified
durability
mechanical
damage.
This
work
demonstrates
SLIPS
design,
enabling
practical
Nd‐Fe‐B
magnets
extreme
like
offshore
wind
turbines.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(33), С. 12670 - 12682
Опубликована: Авг. 8, 2024
The
demand
to
produce
durable
multifunctional
cotton
fabrics
without
detrimental
effects
on
the
environment
is
increasing.
Herein,
a
fabric
(cotton-APP/LP)
designed
and
prepared
through
covalently
grafting
phosphorylated
lignin
(LP)/ammonium
polyphosphate
(APP)
onto
surface,
presenting
UV
protection,
photothermal
conversion,
fire
safety,
antibacterial
properties.
preparation
of
LP
adopted
green
mechanochemical
method,
whole
treatment
process
organic
solvent-free.
possesses
excellent
free-radical
absorption
capacity,
cotton-APP/LP
achieves
protection
factor
value
421.97.
Under
xenon
lamp
simulated
irradiation,
exhibits
temperature
approximately
63.4
°C
at
light
intensity
150
mW
cm–2,
robust
conversion
effect.
antimicrobial
properties
(inhibition
Escherichia
coli
Staphylococcus
aureus)
are
also
achieved
for
cotton-APP/LP.
In
addition,
limiting
oxygen
index
(LOI)
increases
48.5%,
self-extinguishment
observed
in
vertical
burning
test.
After
50
washing
cycles,
self-extinguishes
LOI
reaches
31.5%,
demonstrating
durability.
This
work
realize
multifunctionality
cleaner
safer
way,
further
promoting
practical
application
fabrics.
Polymer Engineering and Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 9, 2024
Abstract
This
study
investigates
the
impact
of
zinc
oxide
nanoparticles
on
epoxy
resin
systems
and
ultraviolet
(UV)
aging
resistance
modified
composites
using
molecular
dynamics
(MD)
simulations
experimental
methods.
Initially,
various
cross‐linking
models
are
established
through
MD
to
understand
influence
different
nano
ZnO
contents
modification,
further
validated
by
experiments.
Subsequently,
UV
radiation
ZnO–epoxy
is
assessed
subjecting
them
high‐intensity
equivalent
3
years
natural
environmental
conditions,
analyzing
changes
in
tensile
properties,
performance,
hardness,
glass
transition
temperature
before
after
exposure.
The
findings
suggest
that
addition
reduces
resin,
with
optimal
observed
at
a
mass
fraction
0.3
wt%.
