Polymeric
composites
are
prone
to
undergo
damage,
such
as
microcracks,
during
their
operation,
that
can
ultimately
lead
catastrophic
failure.
To
contradict
problem,
effort
has
been
put,
by
the
scientific
community,
towards
developing
self-healing
that,
mimicking
biological
systems,
autonomously
and
prematurely
repair
flaws,
extending
durability
improving
security
of
materials.
The
present
review
explores
progress
being
made
in
area,
focusing
on
extrinsic
methods,
considering
they
be
employed
a
variety
Reservoir-based
techniques,
resort
capsules,
hollow
fibers
or
microvascular
networks,
thermoplastic-based
ones
overviewed,
prioritizing
innovative
approaches
recent
years.
At
last,
promising
practical
applications
for
highlighted
future
challenges
opportunities
pointed
out.
Polymers,
Journal Year:
2025,
Volume and Issue:
17(3), P. 280 - 280
Published: Jan. 22, 2025
This
study
presents
the
formulation
and
comprehensive
characterization
of
compatibilized
polyamide
6
(PA6)/cyclic
olefin
copolymer
(COC)
blends
with
aim
developing
a
self-healing
matrix
for
thermoplastic
structural
composites.
Rheological
analysis
highlighted
compatibilizing
effect
ethylene
glycidyl
methacrylate
(E-GMA),
as
evidenced
by
an
increase
in
viscosity,
melt
strength
(MS),
breaking
stretching
ratio
(BSR),
thus
improving
processability
during
film
extrusion.
E-GMA
also
decreased
COC
domain
size
improved
interfacial
interaction
PA6,
which
was
at
basis
higher
tensile
strain
break
compared
to
neat
PA6/COC
blends.
significantly
boosted
healing
efficiency
(HE),
measured
via
fracture
toughness
tests
quasi-static
impact
conditions.
The
optimal
temperature
identified
160
°C,
associated
HE
38%
mode
82%
content
5
wt%
(PA6COC_5E-GMA).
under
conditions
attributed
planar
surface,
facilitated
flow
agent
crack
zone,
proven
fractography
analysis.
work
demonstrates
potential
fine-tuning
thermomechanical
properties
PA6COC_5E-GMA
emerged
best
balance
between
efficiency,
paving
way
advanced
multifunctional
composites
applications.
Polymer Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 23, 2025
Abstract
The
purpose
of
this
study
is
to
develop
green
composites
prepared
from
bio‐derived
polybenzoxazine
(PBz)
and
glass
fiber
(GF).
effects
GF
contents
(22.7,
30.6,
39.8,
50.7,
63.8
vol%)
on
mechanical,
thermal
surface
properties,
self‐healing
behavior
UV‐protection
property
were
evaluated.
Flexural
stability
flame
resistant
the
composite
samples
was
substantially
improved
by
presence
GFs,
while
expansion
water
contact
angle
progressively
reduced
with
content.
efficiency
assessed
through
percentage
under
flexure
content
confirm
that
showed
good
performance
within
59.5–83.8.
In
addition,
reinforcing
also
exhibits
an
enhanced
ultraviolet
shielding
closed
100%.
Based
composite's
mechanical
efficiency,
property,
its
potential
usage
suggested
in
advanced
application
such
as
structural
materials
associated
requirements
significant
self‐healing,
self‐extinguishing
ultraviolet‐shielding
property.
Highlights
Green
GF/bio‐derived
successfully
developed.
GF/poly(E‐fa)
substantial
performance.
LOI
values
suitable
for
materials.
reinforcement
into
comprehensive
properties.
represents
a
promising
new
candidate
Chemical Society Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
review
presents
the
classification
and
healing
mechanisms
of
self-healing
materials,
with
an
emphasis
on
expounding
latest
progress
challenges
superhard
materials.
Polymer Composites,
Journal Year:
2023,
Volume and Issue:
45(5), P. 3883 - 3900
Published: Dec. 22, 2023
Abstract
Fracture
toughness
is
a
critical
parameter
in
the
evaluation
of
component's
structural
integrity
and
damage
tolerance.
For
3D‐printed
continuous
fiber
reinforced
composites
(CFRCs)
based
on
fused
deposition
modeling
(FDM)
technique,
fracture
behavior
differed
from
that
manufactured
by
traditional
processes
due
to
presence
voids
interfaces
at
different
scales,
receiving
significant
attention.
Recently
published
research
attempted
apply
various
testing
standards
(for
other
materials)
investigate
CFRCs.
In
these
results,
CFRCs
was
influenced
manufacturing
parameters
dependent
porosity
interfacial
bonding
quality.
This
paper
reviewed
measurement
compatible
with
CFRCs,
factors
influencing
behavior,
methods
improving
Lastly,
this
review
explored
limitations
current
studies
focused
future
perspectives
for
fabrication
improved
toughness.
Highlights
focuses
(CFRCs).
The
were
summarized.
explores
Polymer Composites,
Journal Year:
2024,
Volume and Issue:
45(7), P. 6041 - 6058
Published: Feb. 3, 2024
Abstract
Vitrimers
constitute
a
new
class
of
recyclable
thermosets
based
on
the
incorporation
associative
dynamic
covalent
bonds,
such
as
disulfide
into
crosslinked
matrix.
These
reversible
bonds
usually
require
excess
to
confer
proper
self‐healing
and
recycling
capabilities
thermoset.
In
that
way,
we
manufacture
epoxy
resins
cured
with
4‐aminophenyl
(AFD)
in
stoichiometric
ratio,
10
20
wt%
AFD
excesses
analyze
effect
composition
resin
properties.
Beyond
neat
vitrimers
analysis,
nanocomposites
doped
carbon
nanotubes
(CNT)
obtain
electroactive
vitrimers.
can
be
mechanically
recycled
by
milling
hot‐pressing.
The
conserve
partially
CNT
integrity
dispersion.
Even
more,
maintain
mechanical
strength
pristine
nanocomposites.
Vitrimer
nanocomposite
samples
also
electrically
welded,
due
their
heating
Joule
effect,
through
relatively
low
voltage
application,
therefore
energy
consumption,
monolithic
specimen.
summary,
manufactured
are
sustainable
materials,
which
processed
reprocessed
using
technologies
easily
implementable,
fast,
consumption.
Highlights
Electroactive
re‐processable
vitrimer
manufactured.
Nanocomposite
show
conductivities
similar
conventional
epoxies.
Bond
exchanging
temperatures
reached
heating.
addition
enhances
exchanges
thermo‐mechanical
recyclability.
Electrothermal
welding
is
successfully
tested.
ACS Applied Polymer Materials,
Journal Year:
2023,
Volume and Issue:
6(1), P. 466 - 474
Published: Dec. 6, 2023
The
low
heat
resistance
of
self-healing
polymers
based
on
the
Diels–Alder
(DA)
reaction
between
2-substituted
furans
with
maleimide
has
significantly
limited
their
practical
applications.
To
address
this
limitation,
3-substituted
instead
were
used
in
maleimide,
which
formed
a
thermally
stable
conjugated
structure
adduct.
As
result,
retro-DA
temperature
was
increased
from
120
to
240
°C.
Based
such
reaction,
epoxy
resin
(SHE)
exceptional
successfully
synthesized.
In
addition
its
thermal
stability,
SHE
exhibited
flexural
strength
and
modulus
reaching
141.1
MPa
4.29
GPa,
respectively,
comparable
those
engineering
resins.
Moreover,
demonstrated
remarkable
ability
recycling
capacity.
healing
efficiency
fracture
toughness
found
be
as
high
85.4%,
recovery
reached
89.2%
after
sample
crushed
into
powders
recured.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(5), P. 665 - 665
Published: Feb. 29, 2024
Microvascular
self-healing
composite
materials
have
significant
potential
for
application
and
their
mechanical
properties
need
in-depth
investigation.
In
this
paper,
the
tensile
compressive
of
woven
fabric
carbon
fiber-reinforced
polymer
(CFRP)
laminates
containing
three-dimensional
microvascular
channels
were
investigated
experimentally.
Several
detailed
finite
element
(FE)
models
established
to
simulate
behavior
laminate
effectiveness
different
was
examined.
The
damage
propagation
process
influence
parameters
studied
by
validated
models.
results
show
that
arranged
along
thickness
direction
(z-direction)
are
critical
locations
under
loads.
minimal
effect
on
stiffness
but
cause
a
certain
reduction
in
strength,
which
varies
approximately
linearly
with
z-direction
channel
diameter
within
its
common
design
range
0.1~1
mm.
It
is
necessary
consider
resin-rich
region
formed
around
warp
weft
fiber
yarns
when
establishing
FE
model.
layers
model
should
be
assigned
equivalent
unidirectional
ply
material
order
calculate
correctly.
Polymer Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 10, 2025
Abstract
In
this
work,
a
self‐healing
elastomer
involving
reversible
imine
bonds
was
synthesized
by
Schiff
base
reaction
between
the
amino
groups
in
amino‐modified
polydimethylsiloxane
(APDMS)
and
aldehyde
1,4‐diformylbenzene
(DFB).
The
incorporation
of
multi‐walled
carbon
nanotube
(AMWCNT)
allowed
for
good
dispersion
AMWCNT
with
few
aggregates
effectively
balanced
mechanical
properties
performance,
achieving
strength
132.3
kPa
efficiency
(
HE
)
99.87%
at
room
temperature
after
24
h.
bond
based
on
linkage
promotes
quick
upon
damage
without
any
external
stimulus
temperature.
Through
electroless
deposition,
copper
nickel
patterns
were
formed
surface
elastomer,
establishing
conductive
pathways.
average
resistivity
trace
5.40
×
10
−8
Ω·m
(3.63
−7
trace),
which
is
3.18
times
that
regular
wire
(5.19
wire).
Upon
cleavage
lines,
increment
14.43%
(11.01%
This
work
offers
an
alternative
pathway
to
development
self‐healable
silicone
elastomers
future
flexible
electronics.
Highlights
Elastomer
performance.
Recyclable
through
hot‐press
treatment.
Copper
electroless‐deposited
elastomer.
Damaged
pattern
restored
conductivity
within
h
Materials,
Journal Year:
2025,
Volume and Issue:
18(4), P. 905 - 905
Published: Feb. 19, 2025
To
enhance
the
mechanics
and
self-healing
properties
of
composite,
this
study
introduces
an
innovative
optimization
method
for
variable-angle
fiber-reinforced
composites
with
microtubule
network
carriers.
The
aims
to
minimize
macroscopic
structural
compliance
carrier
head
loss.
Firstly,
a
topological
description
function
(TDF)
composite
was
introduced,
taking
into
account
configuration
geometry
structure
as
design
variables.
Secondly,
relationship
between
fiber
laying
angle
component
spindle
direction
established.
An
element
stiffness
matrix
fibers
derived
determine
composite.
Then,
loss
calculated
based
on
Hardy
Cross
method.
Finally,
by
integrating
Moving
Morphable
Component
(MMC)
enumeration
method,
dual-scale
collaborative
framework
developed.
set
double-objective
Pareto
non-inferior
solutions
obtained
iteration.
Numerical
examples
show
that
(1)
under
same
conditions,
solution
is
superior
those
fixed-angle
designs
(0°,
45°,
90°).
(2)
Compared
single-objective
(compliance)
carrier-free
can
provide
better
solution,
maximum
only
10.64%
higher.
This
paper
proposes
combining
optimization,
which
provides
useful
reference
topology
