Micro-crosslinked thermoplastic polyurethane foam with ultra-low density, excellent resilience and recycling by supercritical CO2/N2
Xiulu Gao,
Chenyang Niu,
Jiaqi Wang
и другие.
Journal of CO2 Utilization,
Год журнала:
2025,
Номер
94, С. 103061 - 103061
Опубликована: Март 13, 2025
Язык: Английский
Functional coatings for textiles: advancements in flame resistance, antimicrobial defense, and self-cleaning performance
RSC Advances,
Год журнала:
2025,
Номер
15(14), С. 10984 - 11022
Опубликована: Янв. 1, 2025
A
new
generation
of
functional
coatings
offers
flame
retardancy,
antimicrobial
efficacy,
and
self-cleaning
properties,
making
them
valuable
additions
to
healthcare,
the
military,
industrial
applications.
Язык: Английский
Pore‐Gradient, Flexible, and Fully‐Degradable Foam with Outstanding Noise Absorption and Thermal Insulation
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 9, 2025
Abstract
With
the
increasing
frequency
of
extreme
cold
conditions
and
emphasis
on
sustainable
economic
development,
there
is
an
escalated
demand
for
eco‐friendly
fabrication
thermal
insulation
noise
absorption
materials.
These
materials
must
strike
optimal
balance,
effectively
minimizing
excessive
loss
heat
from
internal
spaces
while
simultaneously
mitigating
intrusion
external
industrial
activities.
The
existing
uniform
cellular
structures
exhibit
limited
capabilities.
Herein,
inspired
by
natural
gradient
structures,
a
robust
biodegradable
foam
that
integrates
continuous
cell
structure
excellent
directly
designed
via
pioneering
Pre‐N
2
foaming
strategy.
Through
modulation
physical
blowing
agent
type
in
first
stage
incomplete
adsorption
time
gas
second
stage,
concentration
can
be
established,
facilitating
formation
foams.
lightweight
achieves
remarkable
coefficient
0.83.
In
comparison
to
foam,
gradient‐structured
shows
74%
improvement
ball
rebound
resilience.
Notably,
its
biodegradability
600%
higher
than
structure.
controllable
synthesis
foams
opens
promising
avenue
development
multifunctional
Язык: Английский
Achieving Lightweight and High Shape Recovery EVA-Based Foams through Supercritical Nitrogen Induced Phase Structure Foaming
ACS Omega,
Год журнала:
2025,
Номер
10(19), С. 19453 - 19465
Опубликована: Май 6, 2025
During
the
supercritical
foaming
process,
regulation
of
behavior
is
an
extremely
challenging
issue.
In
this
study,
polycaprolactone/ethylene
vinyl
acetate
copolymer
(PCL/EVA)
blends
were
prepared
by
mechanical
mixing
and
further
foamed
nitrogen
foaming.
The
precise
control
phase
structure
material
was
achieved
through
adjustment
blend
components,
mechanisms
behind
revealed.
Scanning
electron
microscopy
(SEM),
thermogravimetric
analysis
(TGA),
properties
used
to
investigate
effect
on
foams.
results
show
that
PCL/EVA
exhibits
a
sea-island
with
gradually
increasing
sizes
at
low
PCL
content
(10-30
wt
%).
Upon
40
%,
size
increases,
tending
form
bicontinuous
structure.
With
increase
addition,
expansion
ratio
foams
increased
from
7.98
11.96,
vesicle
density
1.36
×
107
4.05
cells/cm3,
average
cell
decreased
66.12
±
16.35
46.44
11.76
μm.
introduction
into
EVA
yielded
denser
cells
softer
texture,
which
improved
compression
permanent
deformation
(from
2.53
0.59%)
resilience
95.5
96.93%)
This
work
provided
new
avenue
for
regulating
development
lightweight
high
performances
Язык: Английский
Biobased Polyamides: Monomer Sources, Preparation, Functional Modifications, and Applications
Macromolecular Rapid Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 25, 2025
Abstract
With
the
continued
consumption
of
non‐renewable
petroleum
resources
and
ever‐seriously
climate
change
problems,
reducing
use
fossil
diminishing
carbon
emissions
have
become
significant
development
directions
for
establishing
a
carbon‐neutral
chemical
industry.
Biobased
polyamides
(BPAs)
emerged
as
crucial
bio‐renewable
polymer
materials
with
great
potentials
owing
to
their
extensive
monomer
sources,
multiple
varieties,
excellent
physical‐mechanical
properties,
good
thermal
stability,
easy
processability,
etc.
Besides,
diverse
synthetic
methods
functionalized
modification
strategies
further
broadened
working
scenarios
BPAs,
demonstrating
outstanding
application
possibilities
not
only
in
traditional
industrial
fields,
but
also
some
emerging
fields.
Over
last
few
decades,
increasing
numbers
BPAs
are
successfully
developed,
striking
advancements
achieved
this
research
field.
Unfortunately,
there
is
yet
review
systematically
summarize
progress.
The
present
paper
summarizes
major
dealing
during
past
which
preparation,
functional
modifications,
applications
introduced
detail.
Moreover,
challenges
opportunities
future
concerning
presented.
This
may
motivate
more
interest
facilitating
comprehensive
large‐scale
applications.
Язык: Английский