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日用化学工业 ›› 2020, Vol. 50 ›› Issue (3): 177-181.doi: 10.3969/j.issn.1001-1803.2020.03.007

• 开发与应用 • 上一篇    下一篇

BS-12改性蒙脱土的制备及其稳定的Pickering乳液的研究

杨泽宇,王万绪,王国永,台秀梅   

  1. 中国日用化学研究院有限公司,山西 太原 030001
  • 收稿日期:2019-05-20 修回日期:2019-06-11 出版日期:2020-03-22 发布日期:2020-04-02
  • 作者简介:杨泽宇(1995-),男,山西人,硕士研究生,电话:16636161200,E-mail: yang455633@163.com
  • 基金资助:
    国家重点研究与发展计划资助项目(2017YFB0308704);伽蓝研究基金资助项目(JALA 2017)

Preparation of modified montmorillonite by BS-12 and application in Pickering emulsion

Ze-yu YANG,Wan-xu WANG,Guo-yong WANG,Xiu-mei TAI   

  1. China Research Institute of Daily Chemical Co., Ltd., Taiyuan, Shanxi 030001, China
  • Received:2019-05-20 Revised:2019-06-11 Online:2020-03-22 Published:2020-04-02

摘要:

以十二烷基二甲基甜菜碱(BS-12)为改性剂对蒙脱土(MMT)进行改性,得到十二烷基二甲基甜菜碱改性蒙脱土(BS-12/MMT)。对BS-12/MMT进行红外(FT-IR)、X射线粉末衍射(XRD)表征,测量了改性蒙脱土的三相接触角。设计了L9(3 4)正交试验,对BS-12/MMT稳定的Pickering乳液的各组分含量和工艺进行优化,并对优化后的结果进行了离心稳定性、静置稳定性验证实验,测量了优化后乳液的粒径分布。结果表明,BS-12/MMT含量为4%,油水质量比为1∶1,AEO-3含量为1%,乳化时间为10 min,有利于维持乳液的稳定。优化后的乳液粒径分布窄,有利于乳液的长期稳定。

关键词: 蒙脱土, 十二烷基二甲基甜菜碱, Pickering乳液, 稳定性

Abstract:

The dodecyl dimethyl betaine modified montmorillonite (BS-12/MMT) was prepared using dodecyl dimethyl betaine (BS-12) as modifier. The BS-12/MMT was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and the three-phase contact angle measuring instrument. An L9(3 4) orthogonal experiment was designed to optimize the content of each component and preparation process of the BS-12/MMT stabilized Pickering emulsion. The optimized results were verified by centrifugal stability and static stability experiments. The particle size distribution of the emulsions was measured by the Zeta Plus particle size analyzer. The results show that the BS-12/MMT content is 4%, the oil-water mass ratio is 1∶1, the AEO-3 content is 1%, and the emulsification time is 10 min, which is more conductive to maintaining the stability of the BS-12/MMT stabilized Pickering emulsion. The optimized emulsion particle size distribution is narrow, which is beneficial to the long-term stability of the emulsion.

Key words: montmorillonite, dodecyl dimethyl betaine, Pickering emulsion, stability

中图分类号: 

  • TQ423