Table 5 Water contact angles, Zeta potentials and phenolic group content in lignin samples
Samples | Zeta potential (mV) | Contact angle (°) | Phenolic group content (mmol/g) |
|---|---|---|---|
AL | 3.5 | 98.7 | 1.09 |
SL | − 45.9 | 29.4 | 0.56 |
OL | − 21.5 | 29.5 | 0.91 |
CL | − 27.3 | 38.2 | 0.213 |
Samples | Zeta potential (mV) | Contact angle (°) | Phenolic group content (mmol/g) |
|---|---|---|---|
AL | 3.5 | 98.7 | 1.09 |
SL | − 45.9 | 29.4 | 0.56 |
OL | − 21.5 | 29.5 | 0.91 |
CL | − 27.3 | 38.2 | 0.213 |