量化电解质对自发乳化动态的影响
Muhannad K Zabar1, Chi M Phan1, Ahmed Barifcani1
1Discipline of Chemical Engineering, WASM: MECE, Curtin University, Perth, Western Australia 6845, Australia.
Langmuir : the ACS journal of surfaces and colloids
|December 18, 2023
概括
电解质通过增加表面活性剂扩散和减少滴滴大小来影响重碳化合物乳化,从而减缓自发乳化. 化显示出比化更大的效果.
科学领域:
- 合体和表面科学科学
- 物理化学 物理化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 自发乳化现象 (SEP) 对于碳化合物溶解至关重要.
- 了解电解质对SEP动态的影响对于工业应用至关重要.
- 在表面活性剂溶液中沉重碳化合物的乳化需要详细的运动分析.
研究的目的:
- 量化电解质 (NaCl,KCl) 对重碳化合物自发乳化过程的动力学的影响.
- 调查电解质在表面活性剂扩散和乳液液滴形成中的作用.
- 开发一个模型来预测电解质对SEP的影响.
主要方法:
- 监测单个油滴摄影以测量乳化速率.
- 动态光散射以确定乳液滴滴大小.
- 表面活性剂扩散的质量转移系数计算.
主要成果:
- 电解质增加了通过中间层的表面活性剂扩散率.
- 电解质减少了最终的乳液滴滴大小.
- NaCl和KCl都降低了自发乳化速率,而KCl显示出更显著的减少.
结论:
- 电解质显著影响自发乳化过程的动力学.
- 该研究提供了一个模型,验证了离子对SEP动态学的影响.
- 结果为预测电解质溶液中的重碳化合物溶解提供了基础.
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