Strong, ductile and transparent biaxially oriented poly(lactic acid) with low content of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) by temperature-gradient stretching: The role of mesophase
Dongfu Wang,
No information about this author
Bo Liu,
No information about this author
Deyu Niu
No information about this author
et al.
Composites Communications,
Journal Year:
2025,
Volume and Issue:
unknown, P. 102311 - 102311
Published: Feb. 1, 2025
Language: Английский
Fluorinated Polyphthalazine Ether Ketone Polymers with Self-Lubricating Function: Experiments and Molecular Dynamics Simulations
Qingguang Bao,
No information about this author
Yulu Li,
No information about this author
Ning Wang
No information about this author
et al.
ACS Applied Polymer Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 16, 2025
Traditional
polymers
have
difficulty
meeting
the
requirements
of
severe
friction
conditions
such
as
high
speed,
heavy
load,
and
temperature.
Therefore,
there
is
an
urgent
need
to
develop
new
with
characteristics
temperature
resistance,
wear
self-lubrication.
In
this
paper,
a
series
fluorinated
polyphthalazine
ether
ketone
(PFPEK)
were
synthesized
via
nucleophilic
polycondensation.
The
structural,
thermal,
mechanical
properties
characterized.
Additionally,
effects
fluorine
content
external
on
tribological
PFPEK
investigated.
introduction
fluorine-containing
groups
improves
performance
PPEK.
average
coefficient
(μ)
(ω)
PFPEK-F5
are
0.421
8.73
×
10–15
m3/Nm,
respectively,
which
34.22
87.04%
lower
than
those
pure
Molecular
dynamics
(MD)
simulations
employed
explore
microscopic
mechanisms
underlying
improved
properties.
A
three-layer
model
comprising
polymer
Fe
atomic
layers
was
developed
analyze
changes
in
mechanism
at
molecular
level
before
after
incorporation
groups.
analysis
concentration,
temperature,
velocity
distributions,
interface
binding
energy,
radial
distribution
function
(RDF),
bond
energy
during
process
revealed
that
reduced
polymer–Fe
interactions
decreased
adhesion
chains
contact
surface.
Consequently,
μ
ω
reduced.
This
study
provides
theoretical
insights
into
chemical
modification
offers
deeper
understanding
behavior.
Language: Английский
Tailoring Interfacial, Rheological, and Energy Absorption Properties of In Situ Nanofibrillated Ethylene Propylene Diene Monomer Rubber for Enhanced Toughness in Polypropylene Composites
Amirmehdi Salehi,
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Mohamad Kheradmandkeysomi,
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Reza Rahmati
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et al.
ACS Applied Polymer Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Language: Английский
Design for enhanced mechanical and barrier properties of poly (butylene-adipate-co-terephtalate)/poly (glycolicacid) composite films using biobased poly (lacticacid) as intermediates through gradient reactive extrusion
International Journal of Biological Macromolecules,
Journal Year:
2025,
Volume and Issue:
unknown, P. 141674 - 141674
Published: March 1, 2025
Language: Английский
Enhancing Heat Resistance of PBAT Foams by Incorporating sc-PLA and In Situ Fibrillation Process
ACS Applied Polymer Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 27, 2025
Language: Английский
The Selective Localization of Organic Montmorillonite at the Interface and Its Effects on the Micro-Morphology and Properties of Bio-Based Polylactic Acid/Eucommia Ulmoides Gum (PLA/EUG) Blends
Polymers,
Journal Year:
2025,
Volume and Issue:
17(7), P. 911 - 911
Published: March 28, 2025
Highly
toughened
bio-based
polylactic
acid
(PLA)/Eucommia
ulmoides
gum
(EUG)
blends
were
prepared
using
organic
montmorillonite
(OMMT)
as
a
compatibilizer
through
melt-blending.
Both
the
theoretically
predicted
values
and
experimental
results
confirm
that
majority
of
OMMT's
nanolayers
are
selectively
localized
at
PLA/EUG
interface.
This
localization
leads
to
improved
interfacial
properties
more
refined
morphology
dispersed
EUG
phase.
By
increasing
OMMT
content
from
0
phr
2
phr,
notched
Izod
impact
strength
PLA/EUG/OMMT
(85/15/2)
blend
increases
maximum
value
44.6
kJ/m2.
is
significantly
higher
than
observed
for
neat
PLA
3.8
kJ/m2
(85/15)
4.7
Moreover,
compared
blend,
which
exhibit
poor
tensile
ductility,
indicated
by
their
low
elongation
break,
demonstrates
substantial
improvement
in
its
ductility
when
an
appropriate
amount
added.
It
believed
enhanced
toughness
can
primarily
be
attributed
refinement
uniform
dispersion
domains,
caused
incorporation
OMMT.
In
addition,
crystalline
properties,
thermal
degradation
behavior,
extrudate
swell
behavior
with
without
also
evaluated
detail.
Finally,
prove
containing
exhibits
highest
accompanied
stability
extrusion
stability.
Language: Английский
Innovative crosslinking and foaming Strategies for Advancing biodegradable composite foams: Enhancing Foamability, Flexibility, and thermal insulation
Materials & Design,
Journal Year:
2025,
Volume and Issue:
unknown, P. 113895 - 113895
Published: April 1, 2025
Language: Английский
Eco-friendly additives for biodegradable polyesters: Recent progress in performance optimization and environmental impact reduction
Sustainable materials and technologies,
Journal Year:
2025,
Volume and Issue:
unknown, P. e01395 - e01395
Published: April 1, 2025
Language: Английский