Polymer Testing,
Journal Year:
2023,
Volume and Issue:
124, P. 108059 - 108059
Published: May 18, 2023
This
work
reports
the
effect
of
a
reactive
extrusion
(REX)
process
on
polylactide
(PLA)
based
formulations
plasticized
with
dibutyl
itaconate
(DBI).
As
DBI
contains
carbon-carbon
double
bond,
it
is
suitable
for
extrusion.
REX
was
carried
out
in
co-rotating
twin
extruder
addition
two
different
organic
peroxides.
The
main
aim
using
during
blending
plasticizer
PLA
to
improve
interaction
between
them
so
obtained
final
properties
could
be
improved.
Plasticization
allowed
ductile
PLA,
by
REX,
an
improvement
tensile
strength
no
remarkable
change
ductility.
thermal
characterization
also
revealed
that
glass
transition
temperature
Tg
reduced
all
including
DBI.
provided
slight
increase
and
this
evident
thermomechanical
properties.
Regarding
degradation
behaviour,
onset
maximum
rate,
while
stability
observed
Finally,
migration
water
conventional
extruded
PLA/DBI
formulations,
improved
behaviour
against
migration.
Polymer Testing,
Journal Year:
2023,
Volume and Issue:
124, P. 108059 - 108059
Published: May 18, 2023
This
work
reports
the
effect
of
a
reactive
extrusion
(REX)
process
on
polylactide
(PLA)
based
formulations
plasticized
with
dibutyl
itaconate
(DBI).
As
DBI
contains
carbon-carbon
double
bond,
it
is
suitable
for
extrusion.
REX
was
carried
out
in
co-rotating
twin
extruder
addition
two
different
organic
peroxides.
The
main
aim
using
during
blending
plasticizer
PLA
to
improve
interaction
between
them
so
obtained
final
properties
could
be
improved.
Plasticization
allowed
ductile
PLA,
by
REX,
an
improvement
tensile
strength
no
remarkable
change
ductility.
thermal
characterization
also
revealed
that
glass
transition
temperature
Tg
reduced
all
including
DBI.
provided
slight
increase
and
this
evident
thermomechanical
properties.
Regarding
degradation
behaviour,
onset
maximum
rate,
while
stability
observed
Finally,
migration
water
conventional
extruded
PLA/DBI
formulations,
improved
behaviour
against
migration.