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Official Journal of the Japan Wood Research Society

Table 3 pH value of the water after TS test of particleboard bonded with citric acid

From: Utilization of sweet sorghum bagasse and citric acid for manufacturing of particleboard II: influences of pressing temperature and time on particleboard properties

 

Type of particle board

Based on pressing temperature

Based on pressing time

CA140

CA160

CA180

CA200

CA220

CA2

CA5

CA7

CA10

CA15

pH

2.83 (0.01)

2.91 (0.02)

3.31 (0.06)

4.48 (0.04)

5.51 (0.10)

3.05 (0.05)

3.88 (0.19)

4.27 (0.24)

4.48 (0.04)

5.104 (0.08)

  1. Values in parentheses are standard deviation
  2. Citric acid (CA) is particleboard bonded with 20 wt% citric acid content; 140, 160, 180, 200, and 220 are pressing temperature; 2, 5, 7, 10, 15 are pressing time; thickness swelling (TS) is swelling of thickness of particleboard after imersion of sample in the 20 °C of water for 24 h