Coatings,
Journal Year:
2021,
Volume and Issue:
12(1), P. 13 - 13
Published: Dec. 23, 2021
Vegetable
oils
and
their
derivatives
have
great
potential
as
renewable
sustainable
raw
materials
for
the
production
of
polyurethanes
bio-based
polyols.
For
industry
an
important
process
is
modification.
Chemical
reactions
that
are
carried
out
on
vegetable
are:
transesterification,
auto-oxidation,
hydrogenation,
epoxidation,
hydroxylation,
acrylation,
isocyanation
others.
One
modifications
performed
double
bonds
and/or
carbonyl
moieties
plants
derivatives.
These
result
in
products
actively
used
binders
coating
due
to
unique
structural
properties.
In
this
manuscript,
we
describe
technological
methods
introduction
hydroxyl
groups:
opening
oxirane
rings
by
nucleophilic
reagents
such
as:
water,
alcohols,
glycols,
amino
carboxylic
acids;
direct
hydroxylation
unsaturated
with
peracids
combination
hydrolysis
carboxyl
groups
hydration;
hydroformylation
subsequent
hydrogenation
alkoxylation;
ozonolysis
alkoxylation.
Polymers,
Journal Year:
2022,
Volume and Issue:
14(5), P. 1050 - 1050
Published: March 6, 2022
Limited
petroleum
sources,
suitable
law
regulations,
and
higher
awareness
within
society
has
caused
sustainable
development
of
manufacturing
recycling
polymer
blends
composites
to
be
gaining
increasing
attention.
This
work
aims
report
recent
advances
in
the
environmentally
friendly
low-cost
materials
based
on
post-production
post-consumer
wastes.
Sustainable
three
groups
materials:
wood
composites,
polyurethane
foams,
rubber
products
were
comprehensively
described.
Special
attention
was
focused
examples
industrially
applicable
technologies
developed
Poland
over
last
five
years.
Moreover,
current
trends
limitations
future
“green”
waste-based
also
discussed.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(4), P. 1605 - 1615
Published: Jan. 16, 2024
Polyurethane
(PUR)
foams
are
widely
used
in
many
engineering
applications,
but
their
efficient
recycling
has
remained
a
major
challenge
for
years.
This
study
presents
novel
strategy
of
incorporating
hydrolyzable
ester
units
into
the
PUR
structure
to
enhance
foam
recyclability.
The
present
eco-design
concept
materials
enables
fully
replacement
petrochemical
polyols
with
biobased
alternatives
and
production
ultralow-density
(16
kg·m–3)
foams.
To
reach
this
target,
series
low-function
based
on
succinic
acid
(SA)
were
first
synthesized.
Their
subsequent
use
combination
high-functional
tall
oil-derived
polyol
led
highly
homogenous
semirigid,
partly
open-cell
outstanding
structural,
thermal,
mechanical
properties.
Additionally,
shows
that
incorporation
SA-polyols
linkages
significantly
enhances
recyclability
via
glycolysis,
proving
potential
contributing
circular
economy
addressing
plastic
waste
concerns.
Polymers,
Journal Year:
2025,
Volume and Issue:
17(3), P. 368 - 368
Published: Jan. 29, 2025
Waste
cooking
oils
(WCOs)
are
generated
globally
from
households,
the
hospitality
industry,
and
other
sectors.
Presently,
WCOs
mainly
employed
as
feedstock
for
biodiesel
energy
production,
strongly
depending
on
availability
of
WCOs,
which
often
imported
countries.
The
objective
this
review
is
to
give
an
overall
comprehensive
panorama
impacts,
regulations,
restrictions
affecting
their
possible
uses
producing
high-value
products,
such
bio
lubricants,
surfactants,
polymer
additives,
road
construction
solvents.
Interestingly,
many
reviews
reported
in
literature
that
address
use
but
a
topic
missing.
Published
studies,
industry
reports,
regulatory
documents
were
examined
identify
trends,
challenges,
production
statistics,
environmental
current
production.
data
collected
show
hold
immense
potential
renewable
resources
sustainable
industrial
applications
line
with
global
carbon
neutrality
goals
circular
economy
principles.
However,
achieving
shift
requires
addressing
gaps,
enhancing
collection
systems,
optimizing
conversion
technologies.
This
underlines
need
collaborative
efforts
among
policymakers,
stakeholders,
researchers
maximize
contribute
development.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(15), P. 2155 - 2155
Published: July 29, 2024
Amid
environmental
pollution
and
resource
depletion,
developing
utilizing
biomass
resources
as
alternatives
to
petroleum
is
a
prominent
research
focus.
Driven
by
protection
sustainable
development,
the
shift
from
petroleum-based
bio-based
polyurethane
prevailing
trend
in
material
development.
Biomass
sources
such
vegetable
oil,
polysaccharides,
lignin
offer
extensive
application
prospects
production.
Functional
modifications
of
these
polyurethanes
can
further
expand
their
range.
This
article
explores
preparation
various
polyurethanes,
applications
across
different
fields,
anticipated
future
development
uses.
Polymers,
Journal Year:
2022,
Volume and Issue:
14(1), P. 201 - 201
Published: Jan. 4, 2022
A
novel
rigid
sound-absorbing
material
made
from
used
palm
oil-based
polyurethane
foam
(PUF)
and
water
hyacinth
fiber
(WHF)
composite
was
developed
in
this
research.
The
NCO
index
set
at
100,
while
the
WHF
content
1%wt
with
mesh
sizes
ranging
80
to
20.
mechanical
properties,
morphology,
flammability,
sound
absorption
coefficient
(SAC)
of
PUF
were
all
investigated.
When
size
reduced
20,
compression
strength
increased
0.33
0.47
N/mm2.
Furthermore,
use
small
resulted
a
smaller
pore
improved
flammability.
feasible
an
SAC
value
0.92.
As
result,
derived
both
oil
could
be
promising
green
alternative
for
applications.
