Latvian Journal of Physics and Technical Sciences,
Год журнала:
2024,
Номер
61(6), С. 92 - 106
Опубликована: Ноя. 30, 2024
Abstract
The
integration
of
electrospun
nanofibres
into
composite
materials
such
as
carbon
fibre
reinforced
polymers
(CFRP)
and
glass
(GFRPs)
has
gained
significant
attention
for
enhancing
their
mechanical
thermal
properties.
This
study
focuses
on
the
impact
incorporating
polyacrylonitrile
(PAN)-based
an
epoxy
matrix
to
form
multi-layered
laminate
composites.
Our
approach
involved
interleaving
these
orientated
within
CFRP/GFRP
matrices
investigate
improvements
in
bulk
material
characteristics.
tensile
properties
resulting
nanocomposites
were
thoroughly
analysed.
Thermogravimetric
analysis
(TGA)
was
employed
evaluate
stability
degradation
behaviour.
In
particular,
exhibited
increase
5–24
%
elastic
modulus,
aligning
with
predictions
from
analytical
models.
research
underscores
potential
PAN
nanofibre
mats
development
lightweight,
high-performance
nanocomposites,
offering
a
novel
methodology
enhancement
materials.
Latvian Journal of Physics and Technical Sciences,
Год журнала:
2024,
Номер
61(5), С. 90 - 100
Опубликована: Окт. 1, 2024
Abstract
This
study
explores
the
optimisation
of
electrospinning
parameters
to
enhance
strength
and
orientation
polyacrylonitrile
(PAN)
nanofibre
mats,
which
are
pivotal
in
filtration
applications
other
areas
requiring
high-strength,
uniformly
distributed
nanofibres.
The
focus
is
on
process,
particularly
a
rotating
drum
collector,
instrumental
determining
morphology
Key
process
variables,
including
distance
between
collector
syringe,
feed
rate,
applied
voltage,
polymer
concentration,
have
been
meticulously
examined
understand
their
influence
physical
properties
PAN
Our
findings
indicate
that
such
as
collector-to-syringe
distance,
rotation
speed
(RPM)
significantly
impact
mechanical
performance
mats.
optimised
conditions
produced
mats
with
tensile
strengths
ranging
from
1.61
MPa
21.78
MPa,
demonstrating
notable
improvement
due
controlled
fluid
dynamics
expulsion
solution
during
process.
Polymers,
Год журнала:
2024,
Номер
16(20), С. 2920 - 2920
Опубликована: Окт. 17, 2024
The
selection
of
an
appropriate
fabric
for
technical
applications,
such
as
protective
masks,
hinges
on
a
thorough
understanding
the
fabric’s
physical
and
mechanical
properties.
This
study
addresses
challenge
selecting
optimal
material
structure
upper
layer
mask,
aiming
to
ensure
adequate
breathability
while
providing
effective
filtration
against
airborne
particles
contaminants.
We
assessed
compared
physical–mechanical
properties
five
polymer
spun-bond
nonwoven
fabrics
from
different
suppliers.
Our
comprehensive
evaluation
included,
follows:
visual
inspection;
light
permeability
analysis;
mass
thickness
measurements;
elongation
tensile
strength
tests;
breathing
resistance
assessments;
filter
penetration
tests
with
paraffin
oil.
results
revealed
significant
variations
in
performance
among
samples,
one
consistently
outperforming
others
across
multiple
parameters.
Notably,
this
top-performing
met
or
exceeded
EN
149:2001+A1:2009
standard
efficiency
and,
combination
additional
layers,
requirements
class
FFP2
(filtering
face
piece).
underscores
importance
meticulous
quality
control
optimizing
PPE
(personal
equipment)
user
safety,
valuable
insights
mask
manufacturers
healthcare
professionals.
Latvian Journal of Physics and Technical Sciences,
Год журнала:
2024,
Номер
61(6), С. 92 - 106
Опубликована: Ноя. 30, 2024
Abstract
The
integration
of
electrospun
nanofibres
into
composite
materials
such
as
carbon
fibre
reinforced
polymers
(CFRP)
and
glass
(GFRPs)
has
gained
significant
attention
for
enhancing
their
mechanical
thermal
properties.
This
study
focuses
on
the
impact
incorporating
polyacrylonitrile
(PAN)-based
an
epoxy
matrix
to
form
multi-layered
laminate
composites.
Our
approach
involved
interleaving
these
orientated
within
CFRP/GFRP
matrices
investigate
improvements
in
bulk
material
characteristics.
tensile
properties
resulting
nanocomposites
were
thoroughly
analysed.
Thermogravimetric
analysis
(TGA)
was
employed
evaluate
stability
degradation
behaviour.
In
particular,
exhibited
increase
5–24
%
elastic
modulus,
aligning
with
predictions
from
analytical
models.
research
underscores
potential
PAN
nanofibre
mats
development
lightweight,
high-performance
nanocomposites,
offering
a
novel
methodology
enhancement
materials.
