皮克林乳液由内外Janus纳米管稳定:油触发了一个不断演变的固体界面层
Estelle Puel1, Céline Cau Dit Coumes2, Arnaud Poulesquen2
1Université Paris-Saclay, CEA Saclay, CNRS, NIMBE, UMR 3685, LIONS, 91191 Gif-Sur-Yvette Cedex, France.
Journal of colloid and interface science
|June 4, 2023
概括
雅努斯的imogolite纳米管 (Imo-CH3) 在低度下有效地稳定了油在水中的皮克林乳液. 由于自组装接口层,可以在临界Imo-CH3度以上实现乳液稳定性.
科学领域:
- 合体和表面科学科学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 皮克林乳液在油水界面的固体颗粒中得到稳定.
- 斯纳米粒子具有独特的表面特性,提供可调节的界面行为.
- 修改为Janus (Imo-CH3) 的imogolite纳米管具有独特的水友性/疏水性特性.
研究的目的:
- 为了研究Janus imogolite纳米管 (Imo-CH3) 的乳化特性.
- 阐明油在水皮克林乳液中Imo-CH3的稳定机制.
- 为了确定有效稳定乳液的临界度.
主要方法:
- 小角度X射线散射 (SAXS) 用于结构分析.
- 接口观测来监测滴滴的行为.
- 风湿学测量以评估乳液稳定性.
- 雅努斯 (Imo-CH3) 异构石纳米管的合成.
主要成果:
- 在Imo-CH3临界度为0.6%的重量百分比的情况下,实现了油在水乳液的快速界面稳定.
- 在值以下,发生了级联凝聚,排出了多余的石油.
- 在值以上,由聚合的Imo-CH3纳米管形成了一个强大的界面固体层,增强了稳定性.
结论:
- 雅努斯的imogolite纳米管 (Imo-CH3) 是有效的稳定油在水皮克林乳液的稳定剂.
- 形成稳定接口层的Imo-CH3的临界度是必不可少的.
- 在界面上的Imo-CH3纳米管的自组装驱动了乳液稳定性.
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