| Composite | Mass ratios | ||
| Graphite/PK or JK | NaOH/kaolinite | H2O/kaolinite | |
| P1 | 0.25 | 0.1 | 0.1 |
| P2 | 0.50 | 0.2 | 0.2 |
| P3 | 0.75 | 0.3 | 0.3 |
| P4 | 1.00 | 0.4 | 0.4 |
| T1 | 0.25 | 0.1 | 0.1 |
| T2 | 0.50 | 0.2 | 0.2 |
| T3 | 0.75 | 0.3 | 0.3 |
| T4 | 1.00 | 0.4 | 0.4 |