To
address
the
growing
need
for
fire-safe
single-component
epoxy
resin
(EP)
systems,
this
study
introduced
a
phosphorus-containing
copper
complex
(Cu-DA)
as
multifunctional
latent
curing
agent.
The
Cu-DA
complex,
synthesized
by
coordinating
(II)
chloride
and
phosphorus-based
imidazole,
significantly
improved
latency,
thermal
stability,
fire
resistance
of
EP.
EP/Cu-DA
mixture
showed
43-day
shelf
life
rapid
gel
time
22
minutes
at
150
°C,
highlighting
its
superb
latency
fast
curing.
resultant
thermoset
had
high
glass
transition
temperature
160.9°C
increased
crosslinking
density,
indicating
superior
stability.
system
achieved
limiting
oxygen
index
(LOI)
37.8%
UL-94
V-0
rating,
reflecting
satisfactory
flame
retardancy.
Furthermore,
compared
to
control
EP
system,
total
smoke
production
(TSP)
maximum
density
(MSD)
were
reduced
approximately
28.4%
25.8%,
respectively,
demonstrating
enhanced
suppression.
research
offers
scalable
strategy
developing
systems
with
curing,
resistance,
great
suppression,
meeting
demands
industrial
applications.
Journal of Applied Polymer Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 21, 2025
ABSTRACT
Poly(butanediol
sebacate‐butanediol
terephthalate)
(PBSeT)
has
emerged
as
a
promising
biodegradable
material,
attributed
to
its
excellent
tensile
strength
and
water
vapor
barrier
properties.
However,
certain
challenges
persist,
including
susceptibility
puncture
tearing.
To
solve
these
problems,
the
researchers
developed
composite
material
consisting
of
PBSeT
zinc
gluconate
(ZG)
improve
performance
through
synergistic
effect
ionic
hydrogen
bonds.
Notably,
tearing
PBSeT/ZG‐3
exhibits
remarkable
increase
48.7%
relative
alone,
while
load
is
enhanced
by
25.3%.
Furthermore,
XRD
TG
analyses
indicate
that
incorporation
ZG
negligible
impact
on
crystallinity
thermal
stability
composites.
Interestingly,
enzymatic
degradation
properties
are
significantly
improved
with
increasing
content,
hydrophilicity
imparted
results
in
reduction
contact
angle
materials.
In
conclusion,
integration
enhances
resistance,
tear
strength,
biodegradability
PBSeT.
These
advancements
critical
for
development
implementation
novel
applications,
particularly
fields
food
packaging,
films,
medical
