Table 5.
Comparison of mean droplet size, PDI and zeta potential of different microemulsions (water 40 g, MPP 20 mg) under SORmax and SCRmax (method B).
| Surfactant | SORmax (%w/w) | Co-surfactant | SCRmax (%w/w) | Z-Average (nm) | PDI | ZP (mV) |
|---|---|---|---|---|---|---|
| Lec | 200:1 | 1-PrOH | 2:1 | 250.8 | 0.32 | −38.5 |
| Sap | 200:1 | 1-PrOH | 1:2 | 104.9 | 0.24 | −29.3 |
| Rhl | 1000:1 | EtOH | 2:1 | 110.8 | 0.23 | −26.2 |
| SMP | 200:1 | 1-PrOH | 1:5 | 40.0 | 0.28 | −11.4 |
| T20 | 200:1 | 1-PrOH | 1:50 | 119.1 | 0.24 | −12.2 |
| T80 | 2000:1 | 1-PrOH | 2:1 | 14.4 | 0.21 | −10.9 |
| S20 | 1000:1 | 1-PrOH | 1:50 | 183.0 | 0.05 | −2.0 |
| SDS | 200:1 | EtOH | 1:2 | 113.4 | 0.29 | −36.4 |