Applied Sciences,
Год журнала:
2025,
Номер
15(6), С. 3207 - 3207
Опубликована: Март 15, 2025
This
study
analyzed
the
use
of
cork-derived
biochar,
obtained
through
pyrolysis,
as
a
more
sustainable
additive
than
traditional
carbon
materials.
In
addition,
present
explored
its
application
in
polymer
matrix
manufacturing
via
stereolithography.
To
best
our
knowledge,
this
approach
has
not
been
reported
scientific
literature.
The
cork
biochar
retained
morphology
original
and
integrated
well
into
photocurable
polymer,
demonstrated
by
scanning
electron
microscopy.
integration
can
contribute
to
formation
internal
networks
within
material,
potentially
modifying
some
properties.
At
specific
low
percentages,
enhanced
both
electrical
conductivity
mechanical
properties
polymers.
Notably,
required
concentrations
were
minimal,
facilitating
incorporation
photopolymer
matrix.
Additionally,
thermal
stability
material
slightly
improved
at
certain
percentages
but
remained
comparable
that
all
cases.
These
findings
highlight
potential
for
advanced
composites.
Advanced Materials,
Год журнала:
2024,
Номер
36(48)
Опубликована: Окт. 9, 2024
Abstract
The
advancement
of
thin,
lightweight,
and
high‐power
electronic
devices
has
increasingly
exacerbated
issues
related
to
electromagnetic
interference
heat
accumulation.
To
address
these
challenges,
a
spray‐drying‐sintering
process
is
employed
assemble
chain‐like
CoNi
flake
boron
nitride
(BN)
into
hydrangea‐like
CoNi@BN
heterostructure
fillers.
These
fillers
are
then
composited
with
polydimethylsiloxane
(PDMS)
develop
CoNi@BN/PDMS
composites,
which
integrate
low‐frequency
microwave
absorption
thermal
conductivity.
When
the
volume
fraction
44
vol%
mass
ratio
BN
3:1,
composites
exhibit
optimal
performance
in
both
achieve
minimum
reflection
loss
−49.9
dB
effective
bandwidth
2.40
GHz
(3.92–6.32
GHz)
at
thickness
4.4
mm,
fully
covering
n79
band
(4.4–5.0
for
5G
communications.
Meanwhile,
in‐plane
conductivity
(
λ
∥
)
7.31
W
m
−1
K
,
≈11.4
times
(0.64
pure
PDMS,
32%
higher
than
that
(CoNi/BN)/PDMS
(5.52
same
obtained
through
direct
mixing.
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(21), С. 12914 - 12940
Опубликована: Окт. 23, 2024
With
advancements
in
science
and
technology
market
diversification
needs,
the
development
of
electronic
components
has
focused
on
miniaturization
high
integration.
At
same
time,
heat
generated
by
these
increases
rapidly,
excessive
accumulation
affects
performance
service
life
equipment;
therefore,
thermal
conductivity
materials
become
an
effective
way
to
solve
this
problem.
Over
years,
polymer-based
thermally
conductive
have
attracted
much
attention
because
their
excellent
insulating
properties,
chemical
resistance,
easy
processing
performance.
However,
polymers
commonly
used
are
mostly
highly
polluting
energy-consuming
petroleum-based
whose
large-scale
production
seriously
affected
resources
environment.
As
a
green,
low-carbon,
environmentally
friendly,
resource-efficient
alternative
material,
biobased
expected
be
potential
solution
for
management.
So
far,
reported
composites
is
far
from
expectation.
This
review
holistically
scopes
current
advances
field,
focusing
preparation
process,
modification,
application
prospects
composites.
Finally,
we
discuss
problems
look
forward
challenges
opportunities,
which
provide
ideas
research
generation
