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日用化学工业 ›› 2021, Vol. 51 ›› Issue (5): 413-420.doi: 10.3969/j.issn.1001-1803.2021.05.007

• 开发与应用 • 上一篇    下一篇

月桂酰基赖氨酸稳定的Pickering乳液的制备研究

何怡静(),许虎君()   

  1. 江南大学 化学与材料工程学院,江苏 无锡 214122
  • 收稿日期:2020-07-25 修回日期:2021-05-06 出版日期:2021-05-22 发布日期:2021-05-21
  • 通讯作者: 许虎君
  • 作者简介:何怡静(1996-),女,浙江台州人,硕士研究生,电话:15061883615,E-mail: heyj201408@163.com

Preparation of Pickering emulsion stabilized by lauroyl lysine

HE Yi-jing(),XU Hu-jun()   

  1. School of Chemical & Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
  • Received:2020-07-25 Revised:2021-05-06 Online:2021-05-22 Published:2021-05-21
  • Contact: Hu-jun XU

摘要:

为了研究月桂酰基赖氨酸(LL)稳定W/O型Pickering乳液的效果,以月桂酰氯和赖氨酸为主要原料合成LL,探究了温度对颗粒尺寸的影响,以LL为颗粒乳化剂,制备Pickering乳液,探讨了均质速率、乳化温度、颗粒质量分数和油水体积比对乳液制备的影响。结果表明:LL在最佳结晶温度下的粒径为(1 347.4±156.9) nm,LL的接触角为145.8°;较优的Pickering乳液制备条件是均质速率为11 000 r/min,乳化温度为20 ℃,颗粒质量分数为2%,油水体积比为5∶5,此条件下制备的乳液具有很好的稳定性。

关键词: 月桂酰基赖氨酸, 结晶, Pickering乳液

Abstract:

In order to study the effect of lauroyl lysine (LL) on stabilizing water-in-oil Pickering emulsion, LL was synthesized with lauroyl chloride and lysine as the main raw materials. The influence of temperature on particle diameter was explored. Pickering emulsion was prepared by using LL particle emulsifier, and the effects of homogenization rate, emulsification temperature, particle mass fraction and oil/water volume ratio on the preparation of emulsion were discussed. The results show that the particle diameter of LL at the optimal crystallization temperature is (1 347.4±156.9) nm, and the contact angle of LL is 145.8°. The better preparation conditions of Pickering emulsion are that the homogenization rate is 11 000 r/min, the emulsification temperature is 20 ℃, the particle mass fraction is 2%, and the oil/water volume ratio is 5∶5. The emulsion prepared under these conditions has good stability.

Key words: lauroyl lysine, crystallization, Pickering emulsion

中图分类号: 

  • O648.2 +3