Lightweight Natural Fiber Insulation Boards Produced with Kapok Fiber (Ceiba Pentandra) and Polylactic Acid or Bicomponent Fiber as a Binder
Global Challenges,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 27, 2025
Traditionally,
kapok
fiber
is
employed
as
filling
for
soft
pillows,
bedding,
and
diverse
elements.
Due
to
its
buoyancy
proportion
between
cell
wall
lumen,
it
also
applied
buoyant
material
in
life
vests
insulation
materials.
This
study
examine
slightweight
panels
produced
from
fibers.
Lightweight
boards
are
by
hot-air
using
fibers
(95%)
bonded
with
polylactic
acid
or
bicomponent
(5%),
achieving
very
low
densities
of
10,15,
20
kg.m-3.
The
technological
attributes
like
density,
porosity,
water
absorption,
wettability,
compression,
thermal
conductivity,
evaluated
against
commercial
glass
wool.
In
terms
absorption
rates,
there
a
direct
correlation
density.
All
the
variables
reach
short-term
values
less
than
1
kg.m-2,
which
comparable
standards.
can
be
attributed
lower
higher
porosity
samples,
inherent
hydrophobic
wax
layer
surface
trend
evident
wettability
tests,
where
demonstrated
water-repellency
when
exposed
water.
Regarding
mechanical
property
neither
binder
nor
density
significantly
impacts
compression
strength.
conductivity
performance
kapok-based
commercially
available
ones.
Language: Английский
Influence of Structural Optimization on the Physical Properties of an Innovative FDM 3D Printed Thermal Barrier
Materials,
Journal Year:
2024,
Volume and Issue:
17(24), P. 6293 - 6293
Published: Dec. 23, 2024
This
article
describes
an
innovative
thermal
insulation
barrier
in
the
form
of
a
sandwich
panel
manufactured
using
3D
FDM
printing
technology.
The
internal
structure
(core
structure)
is
based
on
Kelvin
foam
model.
paper
presents
influence
parameters
(the
height
h
and
porosity
P
single
core
cell)
its
properties
(thermal
conductivity,
resistance,
compressive
strength,
quasi-static
indentation
strength).
dominant
determined
physical
fabricated
samples
was
demonstrated.
best
results
were
obtained
for
single-layer
composites
with
cell
4
mm
90%,
where
conductivity
coefficient
0.038
W/(m·K)
resistance
0.537
(m2·K)/W.
In
contrast,
strength
50%
amounted
to
about
350
MPa,
while
moduli
90%
14
times
lower
26
MPa.
(P)
composite
also
had
significant
effect
punch
shear
produced,
values
did
not
exceed
1
conclusion,
test
showed
that
resulting
cellular
offer
environmentally
friendly
approach
insulation.
Language: Английский