Properties of a Laminated Wood Composite Produced with Thermomechanically Treated Veneers
Table 3
Factor analysis of plywood physical properties.
Source
Property
SS
DF
MS
Sig.
Temperature
Thickness
2.82
1
2.81
71.96
0.000
0.002
1
0.002
2.45
0.121
TS2h
37.00
1
37.00
16.99
0.000
WA2h
45.09
1
45.09
8.90
0.004
TS24h
33.64
1
33.64
13.37
0.001
WA24h
17.71
1
17.71
1.36
0.248
PTS
2.16
1
2.16
1.10
0.299
EMC
6.68
1
6.68
63.26
0.000
Time
Thickness
0.61
1
0.61
15.51
0.000
0.001
1
0.001
1.24
0.269
TS2h
2.13
1
2.13
3.27
0.076
WA2h
100.79
1
100.79
19.89
0.000
TS24h
1.54
1
1.54
0.61
0.438
WA24h
164.80
1
164.80
12.68
0.001
PTS
0.098
1
0.098
0.05
0.824
EMC
0.002
1
0.002
0.02
0.989
Temperature × time
Thickness
0.02
1
0.02
0.39
0.532
0.00
1
0.00
0.12
0.728
TS2h
8.69
1
8.69
3.99
0.058
WA2h
4.69
1
4.69
0.92
0.341
TS24h
6.96
1
6.96
2.76
0.102
WA24h
105.73
1
105.73
8.14
0.006
PTS
17.90
1
17.90
9.12
0.004
EMC
0.60
1
0.60
5.67
0.021
Significant and nonsignificant, respectively, in factor analysis at 0.05 level. : density; TS2h and TS24h: thickness swelling after 2 and 24 hours of water immersion; WA2h and WA24h: water absorption after 2 and 24 hours of water immersion; EMC: equilibrium moisture content; PTS: permanent thickness swelling.