Polymers,
Год журнала:
2024,
Номер
16(24), С. 3479 - 3479
Опубликована: Дек. 13, 2024
This
paper
addresses
the
issue
of
high-precision
control
substrate
tension
in
an
accumulator
during
roll-to-roll
coating
process.
First,
a
coupling
model
for
errors
within
is
established,
along
with
dynamic
models
input–output
rollers,
carriage,
and
thrust
ball
screw.
Based
on
these
models,
simulation
built
MATLAB/Simulink
to
analyze
main
causes
under
uncontrolled
conditions.
Next,
tackle
caused
by
carriage
displacement,
nonlinear
proportional–integral–derivative
(PID)
controller
proposed,
strategy
designed.
Finally,
based
established
model,
experiments
are
conducted
using
proposed
PID
designed
strategy,
their
performance
compared
that
classical
controller.
The
results
show
both
controller,
when
combined
error
can
reduce
substrate.
However,
more
suitable
controlling
accumulator.
On
one
hand,
has
better
anti-disturbance
capability.
In
experiment,
control,
remains
stable
at
around
−1.6
N,
disturbances
±0.2
N
occurring
approximately
185
s
135
s.
other
demonstrates
robustness.
robustness
fluctuates
range
0
0.02
showing
excellent
Polymers from Renewable Resources,
Год журнала:
2024,
Номер
15(4), С. 430 - 490
Опубликована: Окт. 16, 2024
The
mounting
global
concern
over
the
environmental
consequences
of
petroleum-based
plastics
has
prompted
significant
research
into
sustainable
alternatives,
with
bioplastics
emerging
as
a
forerunning
solution.
This
systematic
review
elucidates
multifaceted
synthesis
processes
bioplastics,
which
are
derived
from
renewable
sources
such
plant
starches,
cellulose,
and
waste
materials.
encompasses
stages
raw
material
selection,
pre-treatment,
to
incorporation
various
additives,
aim
achieve
specific
properties
in
resultant
bioplastics.
A
substantial
focus
this
lies
comprehensively
understanding
role
serve
pivotal
agents
tailoring
mechanical
thermal
characteristics
Additives,
including
cross-linking
agents,
plasticizers,
fillers,
compatibilizers,
reinforcement
critically
examined
for
their
influence
on
attributes
tensile
strength,
flexibility,
stability,
biodegradability.
Factors
intermolecular
interactions,
hydrogen
bonding,
moisture
content,
play
determining
towards
properties.
prospects
rapidly
expanding,
signalling
transformative
shift
applications
ranging
eco-friendly
packaging
advanced
biomedical
devices.
article
serves
comprehensive
guide
both
researchers
industry
stakeholders,
providing
deep
insights
additives
functional
Polymers,
Год журнала:
2024,
Номер
16(24), С. 3479 - 3479
Опубликована: Дек. 13, 2024
This
paper
addresses
the
issue
of
high-precision
control
substrate
tension
in
an
accumulator
during
roll-to-roll
coating
process.
First,
a
coupling
model
for
errors
within
is
established,
along
with
dynamic
models
input–output
rollers,
carriage,
and
thrust
ball
screw.
Based
on
these
models,
simulation
built
MATLAB/Simulink
to
analyze
main
causes
under
uncontrolled
conditions.
Next,
tackle
caused
by
carriage
displacement,
nonlinear
proportional–integral–derivative
(PID)
controller
proposed,
strategy
designed.
Finally,
based
established
model,
experiments
are
conducted
using
proposed
PID
designed
strategy,
their
performance
compared
that
classical
controller.
The
results
show
both
controller,
when
combined
error
can
reduce
substrate.
However,
more
suitable
controlling
accumulator.
On
one
hand,
has
better
anti-disturbance
capability.
In
experiment,
control,
remains
stable
at
around
−1.6
N,
disturbances
±0.2
N
occurring
approximately
185
s
135
s.
other
demonstrates
robustness.
robustness
fluctuates
range
0
0.02
showing
excellent
