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China Surfactant Detergent & Cosmetics ›› 2022, Vol. 52 ›› Issue (5): 457-467.doi: 10.3969/j.issn.1001-1803.2022.05.001

• Basic research •     Next Articles

Effects of rheological modifiers on the rheological properties and stability of W/O emulsions

Dong Leilei1,Huang Tianyi1,Duan Guolan1,Chen Hanjun1,Zhang Wanping2,3,Zhang Qianjie2,3,*()   

  1. 1. Bloomage Biotechnology Corporation Limited, Shanghai 200131, China
    2. School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
    3. Collaborative Innovation Center of Fragrance Flavour and Cosmetics, Shanghai 201418, China
  • Received:2021-07-26 Revised:2022-04-24 Online:2022-05-22 Published:2022-05-24
  • Contact: Qianjie Zhang E-mail:zhangqj_sit@126.com

Abstract:

W/O emulsions were prepared by homogeneous emulsification method. The effects of water-soluble polymers (xanthan gum and sodium hyaluronate)and oil-phase thickeners (glyceryl behenate and dimethyl distearyl ammonium lithium-montmorillonite) on the stability and rheological properties of W/O emulsions were studied. The experimental results showed that the stability of W/O emulsions was decreased under different stability testing conditions after the addition of xanthan gum. When sodium hyaluronate was added, the storage stability of the emulsion was decreased at room temperature, but the storage stability at high temperature was improved. The storage stabilities at room temperature and high temperature were both increased when glyceryl behenate was added to the W/Oemulsions. With the addition of dimethyl distearyl ammonium lithium-montmorillonite, the stability of the emulsion was enhanced under different conditions. After the addition of water-soluble polymers, the water-phase viscosity was increased, but the apparent viscosity of W/O emulsions was significantly decreased and the range of linear viscoelastic region became narrow. This might be due to the increased viscosity of the inner water phase which prevented the adsorption of emulsifier molecules at the oil/water interface. The apparent viscosity and linear viscoelastic region of W/Oemulsions were both increased with the addition of oil-phase thickeners, which might be related to the decrease of emulsion droplet size and the change of oil-water interface energy. In addition, the hysteresis loop area of emulsions was decreased to different extent with the addition of rheological modifiers.

Key words: rheological modifier, W/O emulsion, stability, rheology

CLC Number: 

  • O648.23