Forests,
Год журнала:
2024,
Номер
15(12), С. 2102 - 2102
Опубликована: Ноя. 27, 2024
Wood
plastic
composites
(WPCs)
have
recently
gained
attention
as
alternatives
to
traditional
wood
materials
for
outdoor
use,
thanks
their
enhanced
moisture
resistance
and
durability,
which
extends
service
life.
Discolouration
well
surface
erosion
has
been
observed
during
weathering
both
WPCs
with
untreated
heat-treated
wood.
However,
aspects
such
changes
in
hydrophobicity,
chemistry,
terms
of
microplastic
formation
received
less
attention;
this
research
aimed
evaluate
these
factors
natural
weathering.
Four
types
WPC
samples,
consisting
50%
particles
(untreated
heat-treated)
polypropylene,
were
naturally
weathered
Latvia
two
years.
The
samples
measured
240
mm
×
5
mm.
Results
showed
rapid
colour
changes,
microcracks,
exposed
particles,
suggesting
formation.
ATR-FTIR
analysis
increased
absorption
at
1715
cm⁻¹
(carbonyl
groups)
3410
cm−1
3460
cm−1,
typical
wood,
indicating
chemical
on
the
surface.
These
influenced
roughness,
water
penetration.
In
a
relatively
short
exposure
time,
without
proper
additives
undergo
significant
aesthetic
physical
properties,
leading
potential
This
could
challenge
perception
environmentally
friendly
materials.
Wood-plastic
composite
(WPC)
is
a
construction
application
that
can
accommodate
higher
proportion
of
recycled
plastic
without
compromising
engineering
properties.
However,
existing
environmental
impact
assessment
(EIA)
studies
WPC
production
have
four
deficiencies
and
underestimate
the
impacts.
There
are
(1)
outdated
inventory
data;
(2)
incomplete
processes;
(3)
unreasonable
or
unclear
burden
allocation
between
product
life
cycles;
(4)
preference
for
mass
over
economic
value
allocation.This
study
addresses
these
gaps
using
primary
data
from
three
Australian
recycling
businesses
converting
collected
recyclables
into
products.
Results
indicate
previous
underestimated
climate
change
impacts
by
up
to
30%.
Sorting
out
waste
polymer
type
at
material
recovery
facilities
(MRFs)
identified
as
critical
strategy
mitigate
Additionally,
this
revealed
gap
theoretical
industry
practices
regarding
cycles.
Future
research
agenda
recommended.
Polymers,
Год журнала:
2024,
Номер
16(19), С. 2827 - 2827
Опубликована: Окт. 6, 2024
With
the
production
of
wood
waste
constantly
on
increase,
questions
relating
to
its
recycling
and
reuse
are
becoming
unavoidable.
The
derivatives
can
be
achieved
through
composite
materials,
using
as
a
reinforcement
or
even
main
matrix
material.
Additive
manufacturing
(also
known
3D
printing)
is
an
emerging
very
promising
process,
particularly
with
use
bio-based
renewable
materials
such
industrial
derivatives.
aim
this
paper
present
overview
additive
processes
raw
material
including
solutions.
After
presenting
products,
all
will
presented.
Finally,
for
each
printing
review
consider
current
state
research,
solutions
that
may
exist,
well
challenges
issues
still
need
overcome.
