ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(4), P. 2107 - 2117
Published: Feb. 1, 2024
In
this
work,
diglycidyl
ether
of
bisphenol
A
(DGEBA)
is
cured
with
the
bioderived
branched
polyphenol
tannic
acid
(TA)
to
establish
optimum
composition
for
enhanced
mechanical
and
thermal
properties
processability.
To
do
this,
DGEBA
TA
systematically
varied
impact
upon
cure
kinetics,
network
structure,
determined.
As
concentration
increases,
exhibit
a
peak
in
performance
corresponding
formation
homogeneous
microstructure
where
reaction
occurs
initially
via
faster
epoxide
addition
then
by
slower
homopolymerization
epoxy
resin.
Although
precise
stoichiometry
formulation
unknown,
given
uncertainty
surrounding
reactivity
each
phenolic
group,
partially
resin
system
displays
processability
consistent
other
highly
aromatic
cross-linked
fossil
fuel-derived
systems.
For
example,
maximum
Tg,
determined
DMTA,
190
°C
(tan
δ
max),
flexural
modulus
over
3
GPa,
strength
approaches
50
MPa,
fracture
toughness
KIC
0.6
MPa
m1/2.
Furthermore,
T5%
decomposition
temperature
fully
361
°C,
while
char
yield
23.9%,
which
entirely
degradation
high-performance
networks.
The
detailed
structure–property
relationships
presented
here
are
an
important
step
commercial
exploitation
Polymers,
Journal Year:
2022,
Volume and Issue:
14(14), P. 2911 - 2911
Published: July 17, 2022
This
review
provides
an
intensive
overview
of
flame
retardant
coating
systems.
The
occurrence
due
to
thermal
degradation
the
polymer
substrate
as
a
result
overheating
is
one
major
concerns.
Hence,
best
solution
this
problem
it
prevents
from
igniting
flame.
In
review,
descriptions
several
classifications
and
their
relation
flammability
were
discussed.
details
retardants
coatings
in
terms
principles,
types,
mechanisms,
properties
explained
well.
imparted
importance
intumescent
preventing
spread
via
formation
multicellular
charred
layer.
Thus,
intended
intumescence
can
reduce
risk
inherently
flammable
materials
used
maintain
high
standard
living.
Journal of Fire Sciences,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 18, 2025
The
demand
for
sustainable
materials
has
led
to
the
development
of
biopolymers
as
alternatives
petroleum-based
polymers.
However,
their
high
flammability
limits
use
in
applications
requiring
stringent
fire
safety.
Bio-based
additives
such
lignin
and
chitosan
among
others
have
charring
abilities
that
enhance
flame
retardancy
by
forming
protective
barriers
during
combustion.
Renewable
phytic
acid,
tannic
casein,
hydrophobins
also
show
potential
improving
polymer
dehydration,
which
can
help
create
a
stable
char
layer.
Phosphorylation
nitrogen-containing
compounds
nanomaterials
promise
resistance.
These
advancements
make
more
suitable
high-risk
safety
while
maintaining
sustainability.
While
considerable
progress
been
made
enhancing
biopolymers,
challenges
remain
developing
highly
effective,
non-toxic,
fully
biodegradable
retardants
do
not
compromise
physical
properties
processability
biopolymers.
Journal of Material Science and Technology,
Journal Year:
2024,
Volume and Issue:
195, P. 29 - 40
Published: Feb. 29, 2024
Nowadays,
the
predominant
source
for
approximately
90%
of
epoxy
resin
materials
worldwide
is
diglycidyl
ether
bisphenol
A
(DGEBA).
However,
increasing
recognition
environmental
concerns,
such
as
global
warming
and
depletion
petroleum
reserves,
necessitates
exploration
alternative
options,
specifically
bio-epoxy
derived
from
sustainable
resources.
Nonetheless,
inadequate
flame
retardancy
presents
a
notable
drawback,
limiting
its
applicability
in
high-risk
environments.
The
objective
this
review
article
to
provide
concise
overview
latest
up-to-date
advances
flame-retardant
resins
sources.
Firstly,
discussion
encompasses
inherently
bio-based
resins,
considering
both
monomers
curing
agents,
focusing
on
their
mechanical
properties.
Furthermore,
utilization
phosphorus-containing
silicon-containing
additives
explored.
Additionally,
comprehensive
evaluation
partially
intrinsically
retardant
provided.
Finally,
offers
an
extensive
survey
current
state-of-the-art
field
future
perspectives,
serving
valuable
resource
researchers
engaged
study
