| Using the palm kernel oil ethoxylates (SOE-N-60) as emulsifier, high internal phase emulsions (HIPEs) were prepared.The effects of the oil phase volume fraction and SDE-N-60 amount on the properties of HIPEs were discussed by detecting the emulsion appearance, microstructure, particle size distribution, viscosity and rheology, the stability of HIPEs was also studied. The results showed that the stable HIPEs could be formed when the SOE-N-60 amount was 0.6%-1.5%(oil phase volume fraction 83%) and the oil phase volume fraction was 74%-86%(SOE-N-60 amount 1.0%),and under these conditions,the compact packed network structure formed inside the emulsion droplets with smaller particle size,and the emulsion had elastic gel properties and good viscoelasticity and thixotropy. As the increase of oil phase volume fraction and SOE-N-60 amount, the viscoelasticity of the emulsion increased gradually. Meanwhile, HIPEs had good stability when stored at (-5±1) ℃,(25±1) ℃ and (40±1) ℃ for 24 h. |
