Page 41 - 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. 41
Volume
swelling
(%)
8
6
4
2
0
Figure
1:
Pyrolisis-‐liquid
impregnated
Poplar.
Figure
2:
Volumetric
swelling
of
Poplar
wood.
Volumetric
swelling
in
65
%
relative
humidity
at
20
°C
was
reduced
from
6.5
%
in
untreated
poplar
to
5
%
in
samples
impregnated
with
process
residues
of
thermal
treatment
at
180
°C
or
200
°C.
The
processes
using
HTC
liquids
from
Miscanthus
sp.
(Misc.)
or
sawdust
showed
reduction
to
3.0
%
to
3.5
%
and
Pyrolysis
liquid
treatment
to
2.5
%
(Fig.
2).
The
mass
loss
of
untreated
Beech
(30
%
to
35
%)
and
Poplar
(40
%
to
50
%)
was
reduced
to
2
%
with
Pyrolysis,
and
4
%
wth
TT-‐
treatment,
depending
on
wood
species
and
process
(impregnation
or
leaching)
(Fig.
3).
Attendant
bulking
tests
and
UV
scans
prove
the
high
inclusion
of
phenolic
compounds
in
cell
walls
(Fig.
4).
untreated
Pyrolysis
treated
Figure
3:
Mass
loss
of
Beech
(Be)
and
Poplar
(Po)
Figure
4:
UMSP-‐Scans
of
untreated
Bravery
samples
due
to
fungi
decay.
and
treated
poplar
fibers.
References
Ermeydan
M.,
Cabane
E.,
Masic
A.,
Koetz
J.,
Burgert
I.
2012.
Flavonoid
insertion
into
cell
walls
improved
wood
properties.
Appl.
Mater.
Interfaces
4:
5782–5789
Koch
G.,
Grünwald
C.
2004.
Application
of
UV
microspectrophotometry
for
the
topochemical
detection
of
lignin
and
phenolic
extractives
in
wood
fibre
cell
walls.
In:
U.
Schmitt
et
al.
(Eds.):
Wood
fibre
cell
walls:
Methods
to
study
their
formation,
structure
and
properties.
SLU
Uppsala,
Sweden:
119-‐130
Rademacher
P.,
Sablík
P.,
Paschova
Z.,
Rousek
R.,
Pařil
P.,
Baar
J.,
Čermák
P.,
Kois
V.,
Dömény
J.
2014.
Improvement
of
properties
of
selected
wood
species
using
different
modification
techniques.
57th
International
Convention
of
Society
of
Wood
Science
and
Technology,
23.-‐
27.6.
2014
–
Zvolen/
SK
Acknowledgments
Project
supported
by:
European
Social
Fund
and
the
state
budget
of
the
Czech
Republic,
project
‘The
Establishment
of
an
International
Research
Team
for
the
Development
of
New
Woodbased
Materials’,
reg.
no.
CZ.1.07/2.3.00/20.0269
(InWOOD);
the
Internal
Agency
of
Faculty
of
Forestry
and
Wood
Technology
Mendel
University
Brno
(IGA
V
No.
79/2013)
29
swelling
(%)
8
6
4
2
0
Figure
1:
Pyrolisis-‐liquid
impregnated
Poplar.
Figure
2:
Volumetric
swelling
of
Poplar
wood.
Volumetric
swelling
in
65
%
relative
humidity
at
20
°C
was
reduced
from
6.5
%
in
untreated
poplar
to
5
%
in
samples
impregnated
with
process
residues
of
thermal
treatment
at
180
°C
or
200
°C.
The
processes
using
HTC
liquids
from
Miscanthus
sp.
(Misc.)
or
sawdust
showed
reduction
to
3.0
%
to
3.5
%
and
Pyrolysis
liquid
treatment
to
2.5
%
(Fig.
2).
The
mass
loss
of
untreated
Beech
(30
%
to
35
%)
and
Poplar
(40
%
to
50
%)
was
reduced
to
2
%
with
Pyrolysis,
and
4
%
wth
TT-‐
treatment,
depending
on
wood
species
and
process
(impregnation
or
leaching)
(Fig.
3).
Attendant
bulking
tests
and
UV
scans
prove
the
high
inclusion
of
phenolic
compounds
in
cell
walls
(Fig.
4).
untreated
Pyrolysis
treated
Figure
3:
Mass
loss
of
Beech
(Be)
and
Poplar
(Po)
Figure
4:
UMSP-‐Scans
of
untreated
Bravery
samples
due
to
fungi
decay.
and
treated
poplar
fibers.
References
Ermeydan
M.,
Cabane
E.,
Masic
A.,
Koetz
J.,
Burgert
I.
2012.
Flavonoid
insertion
into
cell
walls
improved
wood
properties.
Appl.
Mater.
Interfaces
4:
5782–5789
Koch
G.,
Grünwald
C.
2004.
Application
of
UV
microspectrophotometry
for
the
topochemical
detection
of
lignin
and
phenolic
extractives
in
wood
fibre
cell
walls.
In:
U.
Schmitt
et
al.
(Eds.):
Wood
fibre
cell
walls:
Methods
to
study
their
formation,
structure
and
properties.
SLU
Uppsala,
Sweden:
119-‐130
Rademacher
P.,
Sablík
P.,
Paschova
Z.,
Rousek
R.,
Pařil
P.,
Baar
J.,
Čermák
P.,
Kois
V.,
Dömény
J.
2014.
Improvement
of
properties
of
selected
wood
species
using
different
modification
techniques.
57th
International
Convention
of
Society
of
Wood
Science
and
Technology,
23.-‐
27.6.
2014
–
Zvolen/
SK
Acknowledgments
Project
supported
by:
European
Social
Fund
and
the
state
budget
of
the
Czech
Republic,
project
‘The
Establishment
of
an
International
Research
Team
for
the
Development
of
New
Woodbased
Materials’,
reg.
no.
CZ.1.07/2.3.00/20.0269
(InWOOD);
the
Internal
Agency
of
Faculty
of
Forestry
and
Wood
Technology
Mendel
University
Brno
(IGA
V
No.
79/2013)
29
