ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(16), С. 6220 - 6231
Опубликована: Апрель 8, 2024
Polymer–metal
composite
materials
have
been
extensively
employed
for
thermal
management
in
the
electronic
field.
However,
their
application
is
hindered
by
limited
conductivity
and
inadequate
electrical
insulation.
In
this
study,
we
present
a
novel
strategy
to
prepare
advanced
polymer–metal
films
incorporating
cellulose
nanofibers
(CNFs)
with
orientated
polydopamine
(PDA)
modified
aluminum
(Al)
flakes,
employing
straightforward
process
involving
vacuum-assisted
filtration
hot-pressing.
The
resulting
Al@PDA/CNF
exhibited
superior
in-plane
of
22.9
W/(m·K)
resistivity
1.6
×
1016
Ω·cm,
outperforming
Al/CNF
films.
Molecular
dynamics
simulation
results
showed
that
interfacial
interaction
between
Al
CNF
was
greatly
improved
hydrogen-bonding
coated
PDA,
which
acts
as
"bridge"
promote
phonon
vibration
matching,
excellent
heat
transfer
insulation
properties.
Our
study
provides
promising
approach
preparation
high-performance
interface
(TIMs)
insulation,
demonstrating
great
potential
applications.
Journal of Material Science and Technology,
Год журнала:
2023,
Номер
186, С. 244 - 255
Опубликована: Дек. 17, 2023
SA508Gr.4N
steel
is
commonly
used
in
nuclear
pressure
vessels.
The
current
study
discloses
the
impact
of
austenitizing
temperature
on
its
martensitic
transformation.
Various
temperatures
were
employed
to
examine
transformation
at
different
experimental
conditions.
characteristics
grain
boundaries,
microstructure,
kinetics,
and
crystallography
phase
following
process
analyzed.
Austenitizing
had
minimal
effects
critical
transition.
However,
an
increase
resulted
larger
sizes.
composition
primarily
consisted
lath
martensite,
accompanied
by
a
small
amount
residual
austenite
(RA).
As
increased,
martensite-start
(Ms)
initially
decreased
then
increased.
On
other
hand,
martensite-finish
(Mf)
showed
no
significant
sensitivity
changes
temperature.
Moreover,
average
size
martensite
structure
was
there
increased
tendency
for
variant
selection
as
combination
specific
orientation
relationships
appeared.
This
very
valuable
revealing
microstructure
evolution
temperatures.
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(2), С. 2164 - 2175
Опубликована: Янв. 10, 2024
Wearable
piezoresistive
sensors
have
aroused
considerable
attention
for
their
huge
potential
in
emerging
applications
such
as
healthcare
monitoring
and
intelligent
electronics.
However,
the
fabrication
of
that
combine
excellent
sensing
performance
with
outstanding
working
reliability
watery
environments
still
remains
challenging.
Herein,
a
superhydrophobic
polyurethane
(PU)
sponge
was
proposed
sensor
through
synthesis
d-asparagine-modified
MXene
nanosheets
(MXene-NH2)
coating
conductive
cross-linkable
layer
constructed
by
dihydroxyl-terminated
poly(dimethylsiloxane)
(PDMS(OH))
MXene-NH2
nanosheets.
The
microscale
skeleton
nanoscale
PDMS-MXene
nanosheet
wrinkles
formed
hierarchically
rough
structure
support
superhydrophobicity
water
contact
angle
160°.
Benefiting
from
chemically
network
strong
adhesion
coating,
obtained
PDMS-MXene@PU
exhibited
robust
repellency
angles
(WCAs)
larger
than
150°
after
enduring
chemical
physical
damages.
Owing
to
synergistic
effect
production
microcrack
junctions
separation
between
backbones,
successfully
applied
full-scale
human
motions
(e.g.,
blowing,
facial
expression,
finger
knee
bending,
etc.)
performances
gauge
factor
reaching
−1.9.
findings
conceivably
stand
out
methodology
fabricate
desirable
property
innovative
broad
even
under
special
conditions.
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(6), С. 3263 - 3272
Опубликована: Март 7, 2024
Packaging
accounts
for
46%
of
plastic
waste,
and
due
to
microplastic
concerns
associated
with
plastics,
coated
paper
is
seen
as
a
greener
alternative.
However,
the
existing
lacks
recyclability
biodegradability.
Reported
here
synthesis
degradable
polymeric
waxes
coating
applications.
The
synthesized
were
characterized
by
nuclear
magnetic
resonance,
Fourier
transform
infrared
spectroscopy,
gel
permeation
chromatography.
onto
kraft
using
both
solvent-based
solvent-free
(hot-press)
methods.
was
evaluated
water
resistance
(Cobb1800)
oil
(kit
rating).
Additionally,
packaging-relevant
properties,
such
moisture
barrier
tests
thermal
sealing
tests,
also
performed
on
paper.
Furthermore,
degradation
repulping
performed.
This
use-inspired
work
holds
promise
advance
sustainable
packaging
that
will
offer
benefits
human
environmental
health.
