Exploration of low-sulfonate lignin electrospinning conditions for the development of new renewable lubricant formulations
Nanoscale,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
study
explores
the
preparation
of
lubricating
oleo-dispersions
using
electrospun
nanofibrous
mats
made
from
low-sulfonate
lignin
(LSL)
and
polycaprolactone
(PCL).
Language: Английский
Molecular Entanglement Facilitated Improvement of Thermal Stability of Cellulose Diacetate
Yang Liu,
No information about this author
Yin Hu,
No information about this author
Jianyu Chen
No information about this author
et al.
Polymers,
Journal Year:
2025,
Volume and Issue:
17(7), P. 835 - 835
Published: March 21, 2025
As
a
renewable
and
degradable
biomass
material,
cellulose
diacetate
(CDA)
has
significant
development
potential
gained
widespread
interest
from
researchers.
However,
its
poor
thermal
stability
at
high
temperatures
limits
practical
use
in
the
extrusion
process
restricts
applications
other
fields,
such
as
high-heat
airflow
filters,
battery
separators
special
textile
materials.
To
enhance
of
CDA,
three
heat-resistance
additives,
i.e.,
polyphenylene
sulfide
(PPS),
polycarbonate
(PC)
polyimide
(PI),
were
introduced
to
synthesize
PPS/CDA,
PC/CDA
PI/CDA
composite
materials
through
melt
extrusion.
The
incorporation
heat-resistant
additives
increased
glass
transition
temperature
(Tg),
initial
melting
(Tmi)
final
(Tmf)
composites,
it
reduced
heat
loss
195
°C.
After
conducting
isothermal
thermogravimetry
test
for
3
h
215
°C
an
air
atmosphere,
weight
composites
was
4.6%,
4.1%
3.7%,
respectively,
which
5.1%
lower
than
that
pure
CDA.
Morphology
characterization
tests
using
3D
digital
microscope
field
emission
scanning
electron
(FESEM)
revealed
compatibility
order
with
CDA
following:
PC
>
PPS
PI.
Additionally,
Fourier
transform
infrared
spectroscopy
(FT-IR)
disclosed
hydrogen
bonds
formed
between
molecules,
carbonyl
groups
showed
conjugation
hyperconjugation
effects
benzene
rings
additives.
Therefore,
enhanced
can
be
attributed
molecular
entanglement
crosslinking
molecules.
Language: Английский
Recent Advances in Polysaccharide-Based Electrospun Nanofibers for Food Safety Detection
Sensors,
Journal Year:
2025,
Volume and Issue:
25(7), P. 2220 - 2220
Published: April 1, 2025
The
continuous
advancement
of
food
safety
analytical
technologies
is
ensuring
and
regulatory
compliance.
Electrospinning,
a
versatile
fabrication
platform,
has
emerged
as
transformative
methodology
in
materials
science
due
to
its
unique
capacity
generate
nanoscale
fibrous
architectures
with
tunable
morphologies.
When
combined
the
inherent
biodegradability
biocompatibility
polysaccharides,
electrospun
polysaccharide
nanofibers
are
positioning
themselves
crucial
components
innovative
applications
fields
science.
This
review
systematically
elucidates
fundamental
principles
operational
parameters
governing
electrospinning
processes,
particular
emphasis
on
polysaccharide-specific
fiber
formation
mechanisms.
Furthermore,
it
provides
critical
analysis
state-of-the-art
involving
representative
(e.g.,
starch,
chitosan,
cellulose,
sodium
alginate,
others)
detection,
highlighting
their
application
livestock
(chicken,
pork,
beef),
aquatic
(yellow
croaker,
Penaeus
vannamei,
Plectorhynchus
cinctus),
fruit
vegetable
(olive,
peanut,
coffee),
dairy
(milk)
products.
synthesis
current
findings
not
only
validates
advantages
but
also
establishes
new
paradigms
for
advancing
rapid,
sustainable,
intelligent
technologies.
work
further
proposes
roadmap
translating
laboratory
innovations
into
industrial-scale
while
addressing
existing
technological
bottlenecks.
Language: Английский
Evaluation of Aromatic Organic Compounds as Additives on the Lubrication Properties of Castor Oil
Lubricants,
Journal Year:
2024,
Volume and Issue:
12(7), P. 244 - 244
Published: July 4, 2024
In
the
quest
for
sustainable
lubrication
solutions,
present
research
explored
potential
of
five
organic
compounds
as
additives
in
castor
oil
(CO)
to
improve
its
lubricating
properties.
The
tested
were
curcumin,
eugenol,
1,3-Diphenyl-2-propanone,
1,3-Diphenyl-2-propenone,
and
1,3-Diphenyl-1,3-propanedione.
main
results
showed
that
each
additive
enhanced
at
least
one
characteristic
CO.
Most
lowered
density
but
increased
viscosity
by
up
20%.
Curcumin
eugenol
particularly
effective
creating
thicker
lubricant
films
higher
film
thickness
ratios.
Eugenol
1,3-Diphenyl-2-propanone
significantly
reduced
friction
coefficient
25%.
Wear
rate
wear
mechanisms
with
all
additives,
achieving
a
reduction
50%
(CO+curcumin).
All
except
1,3-Diphenyl-1,3-propanedione,
oxidation
onset
temperature
8
°C.
influence
chemical
structure
was
also
addressed.
optimal
combination
specific
application
demands
minimal
wear,
well
strong
stability,
followed
curcumin
1,3-Diphenyl-2-propanone.
Overall,
contributes
development
eco-friendly
lubricants,
aligning
growing
demand
green
industrial
applications,
highlights
significant
tribological
benefits
these
substances
biolubricant
formulations.
Language: Английский