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Official Journal of the Japan Wood Research Society

Table 2 Physical properties of plywood made from rubberwood veneers thermally treated at different temperatures

From: Characterization of plywood made from heat-treated rubberwood veneers bonded with melamine urea formaldehyde resin

Type of panel

Density

Density loss

WA (%)

TS (%)

(kg/m3)

(%)

2 h*

24 h*

2 h

24 h*

Control

1071b

(61.17)

 

17.21d

(1.10)

38.26c

(2.27)

1.41b

(0.23)

7.57d

(0.37)

T160

1000a

(15.68)

6.63

15.97 cd

(1.33)

37.07c

(3.04)

1.17a

(0.14)

3.69c

(0.33)

T170

997a

(30.51)

6.91

14.56bc

(1.44)

33.49b

(1.34)

1.15a

(0.13)

3.39bc

(0.19)

T180

996a

(10.41)

7.00

13.64ab

(1.05)

32.92b

(1.06)

1.11a

(0.04)

3.21b

(0.41)

T190

983a

(7.40)

8.22

12.30a

(0.64)

28.86a

(1.11)

1.17a

(0.13)

2.22a

(0.16)

  1. The numbers in parentheses are the standard deviation values
  2. *P-value < 0.001 and means with the different letter are significantly different