Polymer Testing,
Journal Year:
2024,
Volume and Issue:
134, P. 108437 - 108437
Published: April 26, 2024
To
solve
the
non-renewable
and
flammability
of
traditional
epoxy
composites,
a
new
type
intrinsic
flame-retardant
(VH/GF)
composite
was
fabricated
from
vanillin-based
resin
(VH)
glass
fibre
(GF).
The
T5%
VH/GF
higher
than
that
DGEBA/GF,
CY800
reached
above
84
wt.%.
obtained
limiting
oxygen
index
as
high
90%
passed
UL-94
V-0
rating.
Compared
with
total
heat
release,
smoke
production,
maximal
density
reduced
by
more
72%,
91%
81%,
respectively.
physical
barrier
excellent
char
formation
ability
VH
endowed
good
condensed
phase
effect.
When
mass
ratio
matrix
5:5,
storage
modulus
transition
temperature
were
6.34
GPa
205
°C,
its
tensile
strength
elongation
at
break
348.36
MPa
4.01%.
This
work
provides
research
insights
for
bio-based
in
high-performance
fire
safety
composites.
Global Challenges,
Journal Year:
2023,
Volume and Issue:
7(9)
Published: Aug. 14, 2023
Sustainable
natural
fiber
reinforced
composites
have
attracted
significant
interest
due
to
the
growing
environmental
concerns
with
conventional
synthetic
as
well
petroleum-based
resins.
One
promising
approach
reducing
large
carbon
footprint
of
resins
is
use
bio-based
thermoset
However,
current
fiber-reinforced
epoxy
exhibit
relatively
lower
mechanical
properties
such
tensile,
flexural
strength,
and
modulus,
which
limits
their
wider
application.
Here
fabrication
high-performance
using
jute
fibers
reported,
modified
graphene
nanoplates
(GNP)
oxide
(GO),
resin.
It
demonstrated
that
physical
chemical
treatments
significantly
improve
volume
fraction
(Vf)
matrix
adhesion,
leading
enhanced
resulting
Jute/Bio-epoxy
(J/BE)
composites.
Furthermore,
incorporation
GNP
GO
further
increases
tensile
strength
J/BE
The
study
reveals
potential
graphene-based
resin
a
sustainable
material
for
wide
range
applications.
This
work
contributes
development
reduce
negative
impact
materials
while
also
offering
improved
properties.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(9), P. 3632 - 3642
Published: Feb. 19, 2024
Maleated
kraft
lignin
has
been
explored
as
a
building
block
for
degradable
thermosets.
The
maleation
procedure
allows
facile
and
atom-efficient
way
to
install
functional
handles
into
the
structure,
rendering
obtained
amenable
cross-linking
via
amine-Michael
addition
thiol–ene
coupling.
Since
modification
leads
formation
of
an
ester
linkage,
final
thermosets
are
susceptible
hydrolytic
degradation,
demonstrated
under
basic
conditions
(NaOH,
0.6
M,
acetone/water
(1/2.5,
v/v)
2.5
h
at
75
°C).
We
also
extended
study
biocomposite
formulations
with
cellulose
nanofibrils
reinforcing
agents.
biocomposites
strengths
110–150
MPa
moduli
4–5.5
GPa
55–65
wt
%
nanocellulose.
This
work
offers
cradle-to-grave
approach
biobased
composites
from
technical
lignin.
Polymer Testing,
Journal Year:
2024,
Volume and Issue:
134, P. 108437 - 108437
Published: April 26, 2024
To
solve
the
non-renewable
and
flammability
of
traditional
epoxy
composites,
a
new
type
intrinsic
flame-retardant
(VH/GF)
composite
was
fabricated
from
vanillin-based
resin
(VH)
glass
fibre
(GF).
The
T5%
VH/GF
higher
than
that
DGEBA/GF,
CY800
reached
above
84
wt.%.
obtained
limiting
oxygen
index
as
high
90%
passed
UL-94
V-0
rating.
Compared
with
total
heat
release,
smoke
production,
maximal
density
reduced
by
more
72%,
91%
81%,
respectively.
physical
barrier
excellent
char
formation
ability
VH
endowed
good
condensed
phase
effect.
When
mass
ratio
matrix
5:5,
storage
modulus
transition
temperature
were
6.34
GPa
205
°C,
its
tensile
strength
elongation
at
break
348.36
MPa
4.01%.
This
work
provides
research
insights
for
bio-based
in
high-performance
fire
safety
composites.
