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| Types of FEAs | Stirring speed (rpm) | Mixing time (s) | M SiO2 : Maqueous solution | Additive |
|---|---|---|---|---|
| Pure water dry water FEA | 4000 | 60 | 1 : 10 | 0 |
| Ammonium dihydrogen phosphate dry water FEA | 4000 | 60 | 1 : 10 | 10% ammonium dihydrogen phosphate |
| Sodium chloride dry water FEA | 4000 | 60 | 1 : 10 | 10% sodium chloride |
| PVA dry water FEA | 4000 | 60 | 1 : 10 | 0.5% polyvinyl alcohol |
