Table 1 Factors, parameters and coded levels of parameters (wt% of CF, PS (µm), CT.
Factor | Parameters | Developed parameter levels | ||
---|---|---|---|---|
−1 | 0 | + 1 | ||
A | FC (wt%) | 2 | 4 | 6 |
B | PS (µm) | 75 | 150 | 225 |
C | CT | 1 (Tri ethoxy (ethyl) silane) | 2(Sodium hydroxide) | 3 (Potassium Hydroxide) |