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Table 1 Average results of the shear strength and percent of wood failure for the treatments, dry, humid, boiling and cycle

From: Evaluation of pressing time in the production of edge glued panel with adhesive polyurethane derived from castor oil

Treatment

Pressing time (h)

Shear strength (MPa)

Wood failure (%)

Average

5th percentile lower

Dry

2

2.38 c (49.16)

1.38

1

4

8.60 b (12.03)

7.53

99

8

9.53 ab (10.24)

8.34

79

24

9.96 a (10.06)

8.43

83

Humid

2

2.97 b (52.28)

1.32

8

4

5.16 a (6.12)

4.31

26

8

5.01 a (13.90)

4.42

30

24

5.47 a (10.15)

5.09

34

Boiling

2

1.54 c (49.50)

0.74

2

4

4.01 b (15.85)

2.99

27

8

4.93 a (11.88)

4.12

39

24

4.64 ab (5.54)

4.34

36

Cycle

2

1.68 b (51.80)

0.56

5

4

4.19 a (14.05)

3.40

35

8

4.85 a (17.09)

3.71

41

24

4.46 a (12.97)

3.76

10

  1. Averages followed by the same letter in each pre-treatment did not differ significantly by Tukey test at the level of 95 % reliability
  2. Results in parentheses refer to the coefficient of variation
  3. Values in italics meets the requirements of EN 13354: 2003 (5th percentile ≥2.5 MPa)