Toward Flame Retardancy, Antimelt Dripping, and UV Resistance Properties of Polylactic Acid Based on Eco-Friendly Core–Shell Flame Retardant
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(7), С. 3814 - 3825
Опубликована: Март 19, 2024
To
enhance
the
flame
retardancy
of
polylactic
acid
(PLA),
exploration
bioderived
retardants
has
captured
focus
researchers
globally.
Herein,
a
core–shell
retardant
is
prepared
through
electrostatic
self-assembly
using
ammonium
polyphosphate
(APP)
as
core
and
chitosan
(CS)/tannic
(TA)
bilayer
shell.
In
addition,
Fe3+
ion
introduced
into
outermost
TA
shell
coordination
with
phenolic
hydroxyl
group,
which
can
reduce
droplets
during
combustion.
The
retardant,
APP@CS@TA-nBL-Fe3+,
structure
(where
"nBL"
represents
number
coating
layers
CS
bilayer)
excellent
for
PLA.
With
5
wt
%
PLA/5%
APP@CS@TA-2BL-Fe3+
attains
highest
LOI
value
(31.6%)
achieves
UL-94
V-0
rating
in
vertical
combustion
tests
light
melt
droplets.
Furthermore,
cone
calorimetry
results
reveal
that
reduction
17.6%
peak
heat
release
rate
22.3%
decrease
total
were
achieved.
Meanwhile,
catalyzes
matrix
to
form
micro-cross-linked
char
layer
blocking
oxygen
exchange.
Moreover,
not
only
99.98%
UV
transmittance
but
also
better
mechanical
properties
after
aging
than
neat
This
study
presents
convenient
environmentally
friendly
approach
preparing
efficient
biobased
PLA,
aiming
broaden
application
Язык: Английский
Engineering 2D nano-sheet struvite by ethanol regulation for boosting flame retardant properties
Applied Surface Science,
Год журнала:
2024,
Номер
663, С. 160156 - 160156
Опубликована: Апрель 24, 2024
Язык: Английский
Strong Synergistic Effects between Boron-Containing Compounds and Aluminum Diethylphosphinate for Enhanced Fire Safety and Mechanical Properties of Polyamide 6
Zongsheng Liu,
Baoli Huang,
Meng Ma
и другие.
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 18, 2024
Polyamide
6
(PA6)
is
an
eminent
engineering
plastic
renowned
for
its
exceptional
mechanical
attributes,
yet
flammability
restricts
application
scope.
Aluminum
diethylphosphinate
(ADP)
has
exhibited
ability
to
significantly
reduce
the
of
PA6,
it
incapable
enhancing
char-forming
capacity
PA6.
More
importantly,
ADP
causes
serious
damage
properties
Here,
a
boron-containing
polymer
(PDBD)
was
prepared
and
added
PA6
together
with
prepare
flame-retardant
composites.
Compared
PA6/13ADP,
PA6/10ADP/3PDBD
sample
3
wt
%
PDBD
replacing
not
only
can
pass
UL-94
V-0
rating,
but
also,
peak
heat
release
rate
(PHRR)
total
(THR)
were
reduced
by
35.6%
16.5%,
respectively.
Simultaneously,
incorporation
enhanced
potential
signifying
robust
synergism
between
in
catalyzing
facilitating
procedure
Significantly,
compared
those
elongation
at
break
notch
impact
strengths
composites
are
notably
increased
174.3%
45.8%
due
hydrogen
bond
These
results
illustrate
that
effectively
augment
charring
propensity
PA6/ADP
mitigate
detrimental
effects
on
Therefore,
this
work
provides
simple
feasible
method
preparing
high-performance
Язык: Английский