Macromolecular Rapid Communications,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 27, 2024
Abstract
Sound
absorption
plays
a
crucial
role
in
addressing
noise
pollution
that
may
cause
harm
to
both
human
health
and
wildlife.
To
tackle
this
environmental
issue,
the
implementation
of
natural‐based
sound
absorbing
materials
attracts
considerable
attention
last
few
years.
In
study,
absorbing,
eco‐friendly
composites
are
produced
by
combining
3D
natural
sponge
namely
Luffa
Cylindrica
(LC)
with
cellulose
acetate
(CA)
microfibrous
layers
fabricated
through
electrospinning.
Electrospun
microfibers
can
effectively
absorb
waves
due
their
unique
properties
such
as
high
porosity,
small
diameter,
large
surface
area.
The
individual
components
resulting
composites,
exhibiting
various
configurations,
characterized
respect
morphology,
density,
properties.
More
precisely,
coefficient
is
determined
standing
wave
ratio
method
within
range
500–4000
(Hz)
frequency.
most
promising
consist
multilayer
combination
LC
CA
layers,
which
creates
new
prospects
development
for
applications.
Advanced Engineering Materials,
Год журнала:
2024,
Номер
26(21)
Опубликована: Авг. 3, 2024
Improvement
of
mechanical
stability
for
porous
polymer
monoliths
is
one
the
prime
concerns
as
represented
by
long‐standing
research
efforts
on
resorcinol‐formaldehyde
(RF)
aerogels.
To
this
end,
it
imperative
not
only
to
tailor
mechanically
robust
morphology
but
also
design
macromolecular
structure
scaffolds.
Previously,
we
have
developed
RF
gels
showing
a
unique
feature
combining
high
strength
and
outstanding
flexibility
against
uniaxial
compression.
Comparison
properties
between
with
varied
morphologies
has
elucidated
influence
structure,
whereas
effects
still
remain
elusive.
Herein,
fabricated
series
macroporous
phenolic
resins
from
three
types
linear
prepolymers
phenol
pendant
groups,
poly(4‐vinylphenol)
or
poly(4‐hydroxystyrene),
which
differ
in
molecular‐weight
properties,
sol–gel
process
conjunction
spinodal
decomposition.
The
difference
gelation
phase
separation
behaviors
observed
discrete
systems
indicates
dissimilar
cross‐linked
networks
respective
gels,
consequently
This
study
demonstrates
improvement
features
thermal
treatment
derived
high‐molecular‐weight
prepolymer
view
application
energy
absorption.
Journal of Polymer Engineering,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 26, 2024
Abstract
With
the
rapid
development
of
urbanization
and
transportation,
noise
pollution
has
become
one
most
severe
environmental
problems
for
people.
It
usually
causes
various
disorders
significantly
affects
human
work
efficiency
living
standards.
In
control
field,
using
sound-absorbing
materials
to
reduce
is
a
critical
way
harm
pollution.
As
widely
used
sound
absorption
material,
porous
are
lightweight,
have
wide
frequency
range,
strong
ability.
They
great
potential
in
field
absorption.
This
paper
first
summarizes
mechanism
factors
affecting
materials.
Secondly,
latest
research
status
fiber,
foam,
new
recent
years
reviewed,
advantages
disadvantages
different
expounded.
Finally,
future
trend
prospected.
continuous
expansion
knowledge
this
it
expected
that
will
continue
improve
find
more
practical
applications
emerging
fields
future.
Macromolecular Rapid Communications,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 27, 2024
Abstract
Sound
absorption
plays
a
crucial
role
in
addressing
noise
pollution
that
may
cause
harm
to
both
human
health
and
wildlife.
To
tackle
this
environmental
issue,
the
implementation
of
natural‐based
sound
absorbing
materials
attracts
considerable
attention
last
few
years.
In
study,
absorbing,
eco‐friendly
composites
are
produced
by
combining
3D
natural
sponge
namely
Luffa
Cylindrica
(LC)
with
cellulose
acetate
(CA)
microfibrous
layers
fabricated
through
electrospinning.
Electrospun
microfibers
can
effectively
absorb
waves
due
their
unique
properties
such
as
high
porosity,
small
diameter,
large
surface
area.
The
individual
components
resulting
composites,
exhibiting
various
configurations,
characterized
respect
morphology,
density,
properties.
More
precisely,
coefficient
is
determined
standing
wave
ratio
method
within
range
500–4000
(Hz)
frequency.
most
promising
consist
multilayer
combination
LC
CA
layers,
which
creates
new
prospects
development
for
applications.
