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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 5 Comparison of chemical composition and density of paulownia (current study) and hardwoods and softwoods (3)

From: Effect of nanoclay on some applied properties of oriented strand board (OSB) made from underutilized low quality paulownia (Paulownia fortunei) wood

Raw material

Holocellulose (%)

α-Cellulose (%)

Lignin (%)

pH

Ash (%)

Solubility (%)

Alcohol–benzene (2/1)

1 % NaOH

Hot water

Cold water

Paulownia

69

45.1

29.3

5.7

3.6

–

–

6.8

5.3

Hardwoods

70–78

45–50

30–35

–

0.35

2–6

14–20

2–7

4–6

Softwoods

63–70

45–50

25–35

–

0.35

2–8

9–16

3–6

2–3

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