Table 2 Properties of nanoparticles
From: Effect of Nano-SiO2, Nano-TiO2 and Nano-Al2O3 Addition on Fluid Loss in Oil-Well Cement Slurry
Species | Diameter (nm) | Color | Surface volume ratio (m2/g) | pH value | Purity (%) |
|---|---|---|---|---|---|
SiO2 | 20 | White | 220 | 5.7 | 99.9 |
TiO2 | 20 | White | 160 | 6.8 | 99.9 |
Al2O3 | 20–30 | White | 50–80 | 6.8 | 99.9 |