Buildings,
Год журнала:
2024,
Номер
14(11), С. 3683 - 3683
Опубликована: Ноя. 19, 2024
Chemical
emissions
from
building
materials
may
significantly
impact
indoor
air
quality
and
potentially
human
health,
since
individuals
spend
most
of
their
time
indoors.
With
rising
global
temperatures
more
frequent
heatwaves,
materials’
resilience
becomes
crucial
for
structural
integrity.
However,
the
effects
temperature
rise
on
material
are
not
systematically
studied.
This
study
investigates
effect
a
moderate
volatile
organic
compound
(VOC)
aldehyde
eighteen
commonly
used
materials,
such
as
engineered
hardwood,
nylon
carpet,
terrazzo
flooring,
acoustic
tile,
at
two
elevated
yet
realistic
points.
The
chemical
were
collected
using
micro-chamber
setup
analyzed
thermal
desorption/gas
chromatography/mass
spectrometry
high-performance
liquid
chromatography.
results
showed
that
78%
tested
demonstrated
increased
higher
temperatures.
Wood-flooring
statistically
significant
increases
in
formaldehyde
temperatures,
which
could
be
associated
with
health
risks.
Eight
particularly
those
large
surface
area
applications,
half
these
labeled
“low-VOC”.
These
findings
inform
updating
standards
third-party
certification
respect
to
variation
when
assessing
emissions.
research
aims
provide
comprehensive
understanding
VOC
emerging
environmental
conditions
due
extreme
heat
climate
scenarios.
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(4), С. 1894 - 1907
Опубликована: Янв. 19, 2024
Hazardous
chemicals
in
building
and
construction
plastics
can
lead
to
health
risks
due
indoor
exposure
may
contaminate
recycled
materials.
We
systematically
sampled
new
polyvinyl
chloride
floorings
on
the
Swiss
market
(
Sustainability,
Год журнала:
2024,
Номер
16(9), С. 3854 - 3854
Опубликована: Май 4, 2024
PVC
has
a
special
status,
as
chlorine
is
component
of
the
polymer
molecule.
The
properties
are
reason
why
molecule
needs
additivation.
mass
plastic
to
which
most
diverse
and
quantitatively
largest
number
additives
added.
This
makes
difficult
recycle.
More
than
three
decades
ago,
industry
announced
its
commitment
improve
sustainability
material
through
recycling.
We
analysed
latest
figures
from
European
industry,
ensuring
that
statistics
included
quantities
enter
market
recyclate.
also
significance
replacing
virgin
with
recyclates.
conclude
this
that,
after
good
decades,
recycling
result
rather
meagre.
lion’s
share
waste
in
Europe
still
going
waste-to-energy
plants,
where
it
tends
be
nuisance.
many
announcements
close
cycle
via
incineration
have
not
got
very
far
either.
And
expand
chemical
parallel
been
successful.
On
basis
stocktaking,
we
analysed,
second
separately
published
part,
conclusions
can
drawn
for
regulatory
measures,
building
on
current
ECHA
investigation
report.
Sustainability,
Год журнала:
2024,
Номер
16(15), С. 6630 - 6630
Опубликована: Авг. 2, 2024
The
complexity
of
plastic
polymers
and
even
more
so
additives
has
increased
enormously
in
recent
years.
This
makes
the
material
recycling
waste
considerably
difficult,
especially
case
mixed
waste.
Some
have
now
been
strictly
regulated
or
completely
banned
for
good
reasons
(‘legacy
additives’).
Material
mechanical
generally
uses
old
plastics
that
still
contain
these
substances.
Consequently,
products
are
manufactured
using
such
recyclates
contaminated
with
harmful
poses
a
major
challenge
sustainability,
as
there
is
conflict
objectives
between
protecting
health
consumers,
vulnerable
groups,
conserving
resources
recycling,
keeping
cycles
‘clean’
destroying
pollutants,
transporting
them
to
safe
final
sink.
With
regard
first
objective,
we
recommend
avoiding
use
intensive
contact
consumers
(‘contact-sensitive
products’)
until
further
notice.
We
also
show
climate
policy
challenges
(and
chemical)
industry
necessitate
defossilization
(‘feedstock
change’).
turnaround
can
only
succeed
if
solely
closed-loop
takes
place
future;
should
primarily
replace
virgin
plastics.
For
this
means
work
used
high
degree
homogeneity
known
formulation
collected
separately,
already
today
PET
bottles.
objective
article
illustrate
increasing
additives,
legacy
which
will
force
legislative
readjustment
todays’
recycling.
Machines,
Год журнала:
2025,
Номер
13(5), С. 362 - 362
Опубликована: Апрель 28, 2025
Polyvinyl
chloride
(PVC)
recycling
poses
significant
engineering
challenges
and
opportunities,
particularly
regarding
material
integrity,
energy
efficiency,
integration
into
circular
manufacturing
systems.
This
systematic
review
evaluates
recent
advancements
in
mechanical
innovations,
tooling
strategies,
intelligent
technologies
reshaping
PVC
recycling.
An
emphasis
is
placed
on
machinery-driven
solutions—including
high-efficiency
shredders,
granulators,
extrusion
moulders,
advanced
sorting
systems
employing
hyperspectral
imaging
robotics.
further
explores
chemical
technologies,
such
as
pyrolysis,
gasification,
supercritical
fluid
extraction,
for
managing
contamination
additive
removal.
The
of
Industry
4.0
notably
digital
twins
artificial
intelligence,
highlighted
its
role
predictive
maintenance,
real-time
quality
assurance,
process
optimisation.
A
combined
PRISMA
approach
ontological
mapping
are
applied
to
classify
technological
pathways
lifecycle
optimisation
strategies.
Critical
constraints—including
thermal
degradation,
leaching,
feedstock
heterogeneity—are
examined
alongside
emerging
like
microwave-assisted
depolymerisation,
offering
scalable,
low-emission
solutions.
Regulatory
instruments,
REACH
Extended
Producer
Responsibility
(EPR),
analysed
their
influence
machinery
compliance
design
standards.
Drawing
from
sustainable
frameworks,
this
study
also
promotes
eco-designs,
modular
paper
concludes
by
proposing
a
digitally
optimized,
machinery-integrated
model
aligned
with
economy
principles
support
the
development
future-ready
reprocessing
infrastructures.
serves
comprehensive
resource
researchers,
practitioners,
policymakers,
advancing
polymer
Environmental Science & Technology Letters,
Год журнала:
2024,
Номер
11(11), С. 1147 - 1160
Опубликована: Окт. 29, 2024
Plastics
contain
various
chemical
substances,
which
can
impact
human
and
ecosystem
health
the
transition
to
a
circular
economy.
Meanwhile,
information
on
presence
of
individual
substances
in
plastics
is
generally
not
made
publicly
available,
but
relies
extensive
analytical
efforts.
Here,
we
review
measurement
studies
chemicals
compile
them
into
new
LitChemPlast
database.
Over
3500
stemming
from
all
plastic
life-cycle
stages,
have
been
detected
different
372
studies.
Approximately
75%
only
nontargeted
workflows,
while
targeted
analyses
focused
limited
well-known
particularly
metal(loid)s,
brominated
flame
retardants,
The
complexity
of
plastic
polymers
and
even
more
so
additives
has
increased
enormously
in
recent
years.
This
makes
the
high-quality
recycling
mixed
waste
considerably
difficult.
Some
have
now
been
strictly
regulated
or
completely
banned
for
good
reasons
('legacy
additives').
Material
mechanical
generally
utilises
old
plastics
that
still
contain
these
substances.
Consequently,
products
are
manufactured
using
such
recyclates
contaminated
with
harmful
We
therefore
recommend
avoiding
use
intensive
contact
consumers
until
further
notice.
also
show
climate
policy
challenges
(and
chemical)
industry
necessitate
a
defossilisation
('feedstock
change').
turnaround
can
only
succeed
if
solely
takes
place
future;
should
primarily
replace
virgin
plastics.
work
used
high
degree
homogeneity
known
formulation
collected
separately,
as
is
already
case
today
PET
bottles.
In
this
context,
we
would
like
to
point
out
inconsistencies
current
legislation
on
European
emissions
trading
system.