Polymers,
Год журнала:
2024,
Номер
16(14), С. 1985 - 1985
Опубликована: Июль 11, 2024
As
the
understanding
of
natural
gas
hydrates
as
a
vast
potential
resource
deepens,
their
importance
future
clean
energy
source
becomes
increasingly
evident.
However,
trend
towards
secondary
generation
during
extraction
and
transportation,
leading
to
safety
issues
such
pipeline
blockages.
Consequently,
developing
new
efficient
hydrate
inhibitors
has
become
focal
point
in
research.
Kinetic
(KHIs)
offer
an
effective
solution
by
disrupting
nucleation
growth
processes
without
altering
thermodynamic
equilibrium
conditions.
This
paper
systematically
reviews
latest
research
progress
development
trends
KHIs
for
hydrates,
covering
history,
classification,
inhibition
mechanisms.
It
particularly
focuses
on
chemical
properties,
effects,
mechanisms
polymer
polyvinylpyrrolidone
(PVP)
polyvinylcaprolactam
(PVCap).
Studies
indicate
that
these
provide
economical
due
low
dosage
environmental
friendliness.
Additionally,
this
explores
impact
biodegradability
inhibitors,
offering
guidance
research,
including
development,
optimization,
assessment
inhibitors.
Through
comprehensive
analysis
existing
work
aims
theoretical
foundation
technical
reference
commercial
promoting
safe
use
resource.
Sustainability,
Год журнала:
2025,
Номер
17(2), С. 764 - 764
Опубликована: Янв. 19, 2025
Plastics
play
an
indispensable
role
in
modern
society,
yet
their
long-term
durability
poses
severe
environmental
challenges,
with
mismanaged
waste
polluting
ecosystems
worldwide.
The
transition
to
a
circular
economy
emphasizes
the
importance
of
recycling
and
resource
recovery
mitigate
these
impacts.
While
conventional
disposal
methods
like
mechanical
chemical
or
incineration
face
limitations
such
as
quality
degradation,
high
costs,
pollutant
emissions,
value-added
approaches
present
innovative
solution.
This
review
explores
potential
integrating
recycled
plastic
into
composite
materials
enhance
performance
sustainability.
Focusing
on
diverse
strategies,
paper
highlights
use
plastics
combination
fibers,
wood,
metal,
concrete,
glass,
rubber,
textiles,
foam.
These
composites
demonstrate
superior
mechanical,
thermal,
properties,
enabling
applications
across
industries
construction,
automotive,
aerospace,
furniture.
Furthermore,
various
roles
waste—such
filler,
reinforcement,
matrix,
additive—are
analyzed
showcase
advancements
material
innovation.
By
presenting
methodologies
outcomes
from
recent
research,
this
underscores
creating
high-performance
materials,
supporting
sustainable
development
economic
goals.
Crystals,
Год журнала:
2024,
Номер
14(7), С. 650 - 650
Опубликована: Июль 15, 2024
A
common
issue
in
studies
on
liquid-phase
chemical
processes
is
that
the
natural
solid
nanoimpurities
present
reagent-grade
chemicals
are
ignored.
Little
known
about
these
impurities’
nature,
sizes,
concentrations,
and
behavior,
yet
they
significantly
affect
efficiency
of
antiscalants
municipal
laboratory
solutions.
Recent
research
has
focused
on:
(i)
estimating
nanoimpurity
concentrations
in-house
deionized
water
semiconductor-grade
isopropanol
using
“light
sheet”
optical
ultramicroscopy,
(ii)
visualizing
antiscalant
sorption
impurities.
Using
a
fluorescent-tagged
aminobis(methylenephosphonic
acid)
(ADMP-F),
we
tracked
its
affinity
to
particulate
matter
KCl
Our
study
showed
total
concentration
nanoparticles
with
size
larger
than
20
nm
106
units/mL
105
isopropanol.
Extrapolation
values
≥1
resulted
1011
108
units/mL.
The
addition
or
ADMP-F
increased
foreign
nanoparticle
populations.
selectively
adsorbed
by
only
some
impurities,
while
most
molecules
remain
as
true
solution.
To
our
knowledge,
this
first
instance
fluorescently
labeled
aminoalkylphosphonates
being
able
differentiate
traces
purity
Therefore,
role
crystallization
centers
should
be
seriously
reconsidered,
especially
their
important
application
scale
inhibition.
Ultrasonics Sonochemistry,
Год журнала:
2024,
Номер
107, С. 106946 - 106946
Опубликована: Июнь 6, 2024
Low
sensitivity
octahydro-1,3,4,7-tetranitro-1,3,5,7-tetrazocine
(HMX)
has
garnered
significant
attention
from
researchers
due
to
its
reduced
shock
sensitivity.
However,
the
crystallization
process
poses
challenges
high
solidity
and
viscosity
of
metastable
α
phase.
Despite
efforts
address
this
with
additional
energy
sources
like
ultrasonic
irradiation,
prolonged
exposure
duration
often
results
in
small
particle
sizes,
hindering
production
HMX
a
consistent
size
distribution,
thus
limiting
applicability.
To
overcome
these
challenges,
method
combining
irradiation
trace
H
Sustainability,
Год журнала:
2024,
Номер
16(19), С. 8540 - 8540
Опубликована: Сен. 30, 2024
Polyvinyl
chloride
(PVC)
and
polyethylene
terephthalate
(PET)
contribute
significantly
to
global
plastic
waste,
with
only
9%
recycled
in
recent
years.
In
this
work,
these
wastes
were
upcycled
as
functional
fillers
improve
the
rigid
polyurethane
foam
(RPUF)
properties.
To
attain
target,
we
leveraged
intrinsic
polarity
of
C=O
C-Cl
groups
PVC
PET
induce
intermolecular
attractions
N-H
matrix,
evidenced
by
observed
IR
peak
shifts.
This
enhanced
nucleating
effect
during
foaming,
increasing
foams’
compressive
strengths
77%
22%
addition
10%
5%
filler,
respectively.
Furthermore,
increased
volume.
Thus,
collective
utilization
PPW
its
corresponding
impact
on
CO-based
RPUF’s
properties
signifies
a
reduction
carbon
dioxide
emissions
14.15%
17.52%
for
PET,
Moreover,
thermogravimetric
analysis
(TGA)
differential
scanning
calorimetry
(DSC)
revealed
improved
thermal
stability
degradation
profiles
produced
RPUFs.
Overall,
work
highlights
potential
advancement
environmentally
responsible
upcycling
strategies
common
end-of-life
wastes,
while
enhancing
ACS Food Science & Technology,
Год журнала:
2024,
Номер
4(12), С. 2998 - 3006
Опубликована: Ноя. 18, 2024
The
simple
and
green
pH-based
method
shows
promise
for
encapsulating
hydrophobic
molecules
in
delivery
systems
to
enhance
their
bioavailability.
However,
there
is
still
a
limited
understanding
of
the
pH-induced
structural
changes
that
are
involved.
In
this
study,
we
combine
experimental
techniques
with
molecular
dynamics
simulations
investigate
curcumin
crystals.
An
alkali-acid
pretreatment
was
introduced
encapsulate
curcumin,
where
first
dissolved
an
alkaline
solution
then
rapidly
acidified
form
aggregates.
Remarkably,
these
aggregates
can
be
spontaneously
encapsulated
into
emulsions,
even
at
high
concentrations
(1
mg/mL).
Microscopy
images
suggested
disrupts
crystalline
structure
curcumin.
Molecular
further
demonstrated
hydroxyl
groups
hydrogen
bonds
water
molecules,
while
interactions
dominate
within
pH-treated
increase
solvent-accessible
surface
area
promote
rapid
solubilization
emulsions
or
milks.
