Page 64 - Kutnar, Andreja, et al., eds., 2015. Proceedings of the 1st COST Action FP1307 International Conference - Life Cycle Assessment, EPDs, and modified wood. University of Primorska Press, Koper.
P. 64
ects
of
bio
and
epoxidised
oil
on
physical
and
biological
properties
of
treated
wood
Ali
Temiz1,
Engin
Derya
Gezer1,
Selçuk
Akbaş2,
Gaye
Köse
Demirel1
1
Karadeniz
Technical
University,
Faculty
of
Forestry
61080
Trabzon,
Turkey,
temiz@ktu.edu.tr
2
Artvin
Çoruh
University,
Faculty
of
Forestry,
08000
Artvin,
Turkey
selcukakb
ass@gmail.com
Keywords:
Decay
resistance;
epoxidised
oil;
bio
oil;
physical
properties
Wood
materials
have
been
preferred
for
indoor
and
outdoor
applications
for
many
centuries
because
wood
is
a
natural,
renewable
engineering
material
with
unique
properties.
However,
wood
materials
are
susceptibility
to
decay,
insects,
termites,
and
fire,
anisotropic
and
hygroscopic.
These
undesirable
properties
of
wood
materials
may
be
improved
by
different
modification
methods
(Mohan
et
al.
2008;
Temiz
et
al.
2013a;
Temiz
et
al.
2013b).
In
the
last
decade,
different
types
of
oils
such
as
linseed,
palm,
soybean,
sunflower,
and
other
bio-‐oils
have
been
investigated
by
several
researchers
for
wood
treatments
due
to
the
potential
health
and
environmental
hazards
of
wood
preservatives
containing
heavy
metals
(Temiz
et
al.
2013b).
Chemically
modified
oils
and
bio-‐oils
have
received
much
attention
for
wood
treatment
in
the
recent
years
(Temiz
et
al.
2013a;
Temiz
et
al.
2013b;
Panov
and
Terziev,
2015;
Jebrane
et
al.
2015a;
Jebrane
et
al.
2015b).
In
this
paper,
the
effects
of
bio-‐oils
obtained
from
heat
treatment
processes,
from
pyrolysis
of
annual
plants
and
epoxidised
oil
on
physical
and
biological
properties
of
wood
materials
were
summarized
based
on
previous
studies
published
in
some
journals.
The
effects
of
bio
and
epoxidised
oils
on
water
absorption
and
tangential
swelling
The
previous
studies
results
showed
that
the
water
absorption
percentage
of
wood
treated
with
20
%
bio-‐oil
obtained
from
a
pyrolysis
process
at
450
°C
to
525
°C
for
30
min
was
lower
than
that
of
unmodified
wood.
While
water
absorption
values
of
control
groups
showed
an
increase
from
63
%
to
89
%,
that
of
wood
samples
treated
with
20
%
bio-‐oil
ranged
from
31
%
to
71
%
after
48
h
of
exposure
in
water.
In
order
to
decrease
the
water
absorption
values
of
bio-‐oil
treated
wood,
samples
were
treated
with
epoxidised
linseed
oil
(ELO)
following
bio-‐oil
treatment.
The
secondary
treatment
of
bio-‐oil
with
ELO
significantly
reduced
the
water
absorption
from
71
%
to
37
%
(Temiz
et
al.
2013a).
In
another
study,
the
water
absorption
percentage
of
wood
samples
treated
with
20
%
bio-‐oil
obtained
from
a
commercial
heat-‐treatment
plant
in
Turkey
was
decreased
to
43
%
52
of
bio
and
epoxidised
oil
on
physical
and
biological
properties
of
treated
wood
Ali
Temiz1,
Engin
Derya
Gezer1,
Selçuk
Akbaş2,
Gaye
Köse
Demirel1
1
Karadeniz
Technical
University,
Faculty
of
Forestry
61080
Trabzon,
Turkey,
temiz@ktu.edu.tr
2
Artvin
Çoruh
University,
Faculty
of
Forestry,
08000
Artvin,
Turkey
selcukakb
ass@gmail.com
Keywords:
Decay
resistance;
epoxidised
oil;
bio
oil;
physical
properties
Wood
materials
have
been
preferred
for
indoor
and
outdoor
applications
for
many
centuries
because
wood
is
a
natural,
renewable
engineering
material
with
unique
properties.
However,
wood
materials
are
susceptibility
to
decay,
insects,
termites,
and
fire,
anisotropic
and
hygroscopic.
These
undesirable
properties
of
wood
materials
may
be
improved
by
different
modification
methods
(Mohan
et
al.
2008;
Temiz
et
al.
2013a;
Temiz
et
al.
2013b).
In
the
last
decade,
different
types
of
oils
such
as
linseed,
palm,
soybean,
sunflower,
and
other
bio-‐oils
have
been
investigated
by
several
researchers
for
wood
treatments
due
to
the
potential
health
and
environmental
hazards
of
wood
preservatives
containing
heavy
metals
(Temiz
et
al.
2013b).
Chemically
modified
oils
and
bio-‐oils
have
received
much
attention
for
wood
treatment
in
the
recent
years
(Temiz
et
al.
2013a;
Temiz
et
al.
2013b;
Panov
and
Terziev,
2015;
Jebrane
et
al.
2015a;
Jebrane
et
al.
2015b).
In
this
paper,
the
effects
of
bio-‐oils
obtained
from
heat
treatment
processes,
from
pyrolysis
of
annual
plants
and
epoxidised
oil
on
physical
and
biological
properties
of
wood
materials
were
summarized
based
on
previous
studies
published
in
some
journals.
The
effects
of
bio
and
epoxidised
oils
on
water
absorption
and
tangential
swelling
The
previous
studies
results
showed
that
the
water
absorption
percentage
of
wood
treated
with
20
%
bio-‐oil
obtained
from
a
pyrolysis
process
at
450
°C
to
525
°C
for
30
min
was
lower
than
that
of
unmodified
wood.
While
water
absorption
values
of
control
groups
showed
an
increase
from
63
%
to
89
%,
that
of
wood
samples
treated
with
20
%
bio-‐oil
ranged
from
31
%
to
71
%
after
48
h
of
exposure
in
water.
In
order
to
decrease
the
water
absorption
values
of
bio-‐oil
treated
wood,
samples
were
treated
with
epoxidised
linseed
oil
(ELO)
following
bio-‐oil
treatment.
The
secondary
treatment
of
bio-‐oil
with
ELO
significantly
reduced
the
water
absorption
from
71
%
to
37
%
(Temiz
et
al.
2013a).
In
another
study,
the
water
absorption
percentage
of
wood
samples
treated
with
20
%
bio-‐oil
obtained
from
a
commercial
heat-‐treatment
plant
in
Turkey
was
decreased
to
43
%
52
