Figure 4

Effect of SiO2 nanoparticles on the liquid viscosity μ, surface tension σ and capillary number Ca of SiO2/SDBS foam at 25 °C. The concentration of SDBS is 1.0 wt%; the shear rate was 100 s−1 during viscosity measurement.

Effect of SiO2 nanoparticles on the liquid viscosity μ, surface tension σ and capillary number Ca of SiO2/SDBS foam at 25 °C. The concentration of SDBS is 1.0 wt%; the shear rate was 100 s−1 during viscosity measurement.