Applied Sciences,
Год журнала:
2024,
Номер
14(9), С. 3582 - 3582
Опубликована: Апрель 24, 2024
Lignocellulosic-based
polymer
composites
have
gained
significant
interest
due
to
their
‘’green’’
character
as
a
response
environmental
concerns.
A
diverse
array
of
lignocellulosic
fibers
is
utilized,
depending
on
fiber
dimensions,
chemical
composition,
moisture
content,
and
the
fiber–matrix
interface.
The
aim
this
study
establish
an
alternative
standardized
methodology,
aimed
at
comparatively
estimating
performance
through
examination
individual
plant
fibers.
studied
are
ramie,
hemp,
flax,
kenaf,
HDPE-based
corresponding
were
analyzed
for
across
various
fiber-content
levels
(10,
20,
30
wt.%).
It
was
found
that
kenaf
showcases
largest
average
diameter,
succeeded
by
flax.
Additionally,
ramie
exhibit
elevated
crystallinity,
suggesting
increased
cellulose
with
having
lowest
crystallinity
index
among
compared.
Based
Thermogravimetric
analysis,
displays
content
examined
fibers,
followed
ultimately
which
recorded
highest
while,
similarly,
exhibits
mass
loss
processing
temperature
composites.
Composites
containing
smaller
diameters
higher
indexes
lower
absorptions,
such
demonstrate
superior
thermal
stability
Young’s
modulus
values
in
respective
However,
poor
interfacial
adhesion
affects
mechanical
all
Understanding
morphology,
inner
structure,
important
developing
new
composite
materials
optimizing
selection
applications.
Journal of Materials Research and Technology,
Год журнала:
2024,
Номер
30, С. 8608 - 8619
Опубликована: Май 1, 2024
Replacing
synthetic
fibres
with
natural
as
reinforcement
fillers
in
rubber
(NR)
tends
to
yield
eco-friendly
bio-composites.
This
study
investigated
the
tensile
and
hardness
properties,
thermal
behaviour
of
pineapple
leaf
fibre
(PALF)-reinforced
NR
composites
without
addition
multi-walled
carbon
nanotubes
(MWCNT).
The
content
was
varied
at
0,
10,
20,
30
parts
per
hundred
(phr)
MWCNT
fixed
10
phr.
surface
morphology
tensile-fractured
specimens
examined
using
scanning
electron
microscopy
(SEM)
identify
rubber-matrix
adhesion
tear
mechanisms
matrix.
results
revealed
that
including
PALF
allowed
exhibit
excellent
stretching
stress
low
elongations.
Additionally,
displayed
enhanced
stiffness,
further
increasing
composite,
ranging
from
46.8
62.8
Shore
A.
However,
reduces
stability
where
initial
degradation
temperature
increases.
From
thermogravimetric
analysis,
residues
remaining
ranged
6-13%
various
loadings.
Therefore,
this
provides
valuable
insights
into
properties
PALF-reinforced
improve
end-use
properties.
Sustainable Chemistry and Pharmacy,
Год журнала:
2024,
Номер
37, С. 101433 - 101433
Опубликована: Янв. 17, 2024
Recent
research
has
focused
on
the
development
of
environmentally
sustainable
materials
for
replacing
conventional
Portland
cement.
Alkali-activated
cements,
derived
from
aluminosilicate-rich
precursors
and
an
alkaline
activator,
have
been
a
key
area
interest.
However,
properties
these
vary
with
different
precursors,
leading
to
issues
like
shrinkage
flexural
strength
deficiencies.
To
address
challenges,
scientists
explored
reinforcement
alkali-activated
through
incorporation
fibres,
both
synthetic
natural.
This
study
involved
comparative
analysis
various
including
options
such
as
polypropylene
glass
well
natural
fibres
sisal,
cellulose,
olive
pruning
some
subjected
specific
treatments.
A
consistent
1%
wt.
fibre
content
was
maintained,
determined
optimal
in
prior
research.
The
matrix
formed
using
electric
arc
furnace
slag
(EAFS)
biomass
bottom
ash
(BBA)
raw
materials,
while
activator
solution
KOH
K2SiO3
used.
Mechanical,
physical,
thermal
were
evaluated.
results
demonstrated
that
improved
up
20%
increased
ductility
matrix,
but
addition
negatively
affected
physical
properties.
Compression
had
behaviour,
improving
values
case
use
treated
by
or
cellulose
commercial
9
15%.
highlights
potential
enhance
materials.
Applied Sciences,
Год журнала:
2024,
Номер
14(9), С. 3582 - 3582
Опубликована: Апрель 24, 2024
Lignocellulosic-based
polymer
composites
have
gained
significant
interest
due
to
their
‘’green’’
character
as
a
response
environmental
concerns.
A
diverse
array
of
lignocellulosic
fibers
is
utilized,
depending
on
fiber
dimensions,
chemical
composition,
moisture
content,
and
the
fiber–matrix
interface.
The
aim
this
study
establish
an
alternative
standardized
methodology,
aimed
at
comparatively
estimating
performance
through
examination
individual
plant
fibers.
studied
are
ramie,
hemp,
flax,
kenaf,
HDPE-based
corresponding
were
analyzed
for
across
various
fiber-content
levels
(10,
20,
30
wt.%).
It
was
found
that
kenaf
showcases
largest
average
diameter,
succeeded
by
flax.
Additionally,
ramie
exhibit
elevated
crystallinity,
suggesting
increased
cellulose
with
having
lowest
crystallinity
index
among
compared.
Based
Thermogravimetric
analysis,
displays
content
examined
fibers,
followed
ultimately
which
recorded
highest
while,
similarly,
exhibits
mass
loss
processing
temperature
composites.
Composites
containing
smaller
diameters
higher
indexes
lower
absorptions,
such
demonstrate
superior
thermal
stability
Young’s
modulus
values
in
respective
However,
poor
interfacial
adhesion
affects
mechanical
all
Understanding
morphology,
inner
structure,
important
developing
new
composite
materials
optimizing
selection
applications.
