ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(17), P. 10706 - 10717
Published: Aug. 16, 2024
Against
the
background
that
noise
pollution
has
become
a
global
problem,
it
is
challenge
to
prepare
acoustic
functional
materials
combine
strong
low-frequency
sound
absorption
at
low
thicknesses
with
excellent
mechanical
and
thermal
insulation
properties.
Inspired
by
natural
reed,
unique
microcolumn
array
was
three-dimensional
printed
stereolithography
(SLA)
combined
sodium
alginate
aerogel
(SA)
polyurethane
(PU)
foam
design
highly
efficient
composite
(PC-FMPPL
composite),
featuring
both
"cavity-like"
"filled
microperforated
plate-like"
structures.
The
combination
of
multiple
sound-absorption
mechanisms
including
resonance
porous
absorption,
along
cavity-like
structure,
contributes
performance
this
material,
even
thickness.
Specifically,
reduction
coefficient
per
unit
thickness
PC-FMPPL
exceeds
most
reported
materials.
Furthermore,
exhibits
conductivity
0.036
W
m–1·K–1
due
their
intricate
structure.
Moreover,
provides
support
resilience,
resulting
in
recovery
stability
after
50
compression
cycles.
These
favorable
properties
suggest
promising
applications
for
various
fields,
architecture,
transportation,
engineering.
In
addition,
proposed
machine-learning-based
sound-pressure
prediction
method
laminated
offers
significant
advantage
fast
speed
(the
trained
machine-learning
model
predicts
distribution
different
ratios
just
0.4
s)
while
ensuring
high
accuracy,
providing
empirical
predicting
types
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 19, 2024
The
ambition
of
human
beings
to
create
a
comfortable
environment
for
work
and
life
in
sustainable
way
has
triggered
great
need
advanced
thermal
insulation
materials
past
decades.
Aerogels
foams
present
prospects
as
insulators
owing
their
low
density,
good
insulation,
mechanical
robustness,
even
high
fire
resistance.
These
merits
make
them
suitable
many
real-world
applications,
such
energy-saving
building
materials,
thermally
protective
aircrafts
battery,
warming
fabrics.
Despite
advances,
date
there
remains
lack
comprehensive
yet
critical
review
on
the
materials.
Herein,
recent
progresses
fire-safe
thermal-insulating
aerogels
are
summarized,
pros/cons
three
major
categories
aerogels/foams
(inorganic,
organic
hybrids)
discussed.
Finally,
key
challenges
associated
with
existing
discussed
some
future
opportunities
proposed.
This
is
expected
expedite
development
insulating
help
sustainable,
safe,
energy-efficient
society.
Journal of Physics Conference Series,
Journal Year:
2025,
Volume and Issue:
2949(1), P. 012057 - 012057
Published: Feb. 1, 2025
Abstract
Paper
and
cardboard-based
products
are
alternative
raw
materials
in
the
field
of
architecture
that
contribute
promote
sustainability,
since
amount
waste
generated
construction
industry
is
very
significant,
it
essential
to
use
from
renewable
sources.
In
this
research,
chemical
foaming
technology
was
used
investigate
how
paper
or
cardboard
can
be
reused
recycled
as
thermal
insulation
boards
industry.
The
effect
sodium-dodecyl-sulfate
alkyl-polyglucoside
were
tested.
present
study
showed
conductivity
samples
similar
currently
on
market.
Foamed
reached
a
0.044-0.050
W/mK.
density
0.130-0.172
g/cm
3
which
quite
high
compared
mineral
wool
expanded
polystyrene.
water
resistance
could
increased
by
application
additives
coatings.
This
material
favorable,
production
insulating
does
not
require
much
energy
if
made
primary
material.
Also,
no
environmentally
harmful
binders
during
production.
most
important
result
research
recycled,
natural-based
so
product
also
meets
requirements
circular
economy
sustainability.
