O/W type Pickering high internal emulsion was prepared by using ball milling lignin and Tween80 as composite stabilizer and cyclohexane as oil phase. The effects of volume fraction of internal phase

amount of ball milling lignin and emulsifier dosage on the size and distribution of emulsion droplets were investigated.The results showed that compared with the ball milling lignin as a single stabilizer

the composite stabilizer was easier to prepare high internal phase emulsion

and the emulsion formed was more stable. The average particle size of the high phase emulsion droplet was about 100

μ

m. When the volume fraction of internal phase increased

the emulsion fluidity increased

the emulsion droplet decreased and the average particle size decreased significantly. When the amount of ball milling lignin increased

the viscosity of emulsion increased

and the average particle size of emulsion droplet increased and the obvious deformation occurred. Increasing the dosage of Tween80 could increased the number of emulsion and decrease the average diameter of emulsion

and the average particle size of emulsion droplets decreased. By combining Tween80 with ball-milled lignin as a composite stabilizer

the stability of the high internal phase emulsion can be greatly improved

and Tween80 and ball-milled lignin have a synergistic effect.