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通过含有三表面活性剂的混合物提高表面/接口活性和可湿性.
Chao Zhang1, Jianlin Jiang1, Linbi Zhou1
1Sinopec Research Institute of Petroleum Processing, Beijing 100083, P. R. China. qiaofulin.ripp@sinopec.com.
Soft matter
|February 5, 2025
概括
这项研究显示,当将三元表面活性剂与离子-非离子表面活性剂混合时,会产生协同效应. 这种组合增强了表面活动,形成了较小的囊泡,改善了油水接口的性能.
科学领域:
- 合体和表面科学科学
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
背景情况:
- 表面活性剂聚合行为对于诸如洗剂,乳化剂和药物输送等应用至关重要.
- 了解混合表面活性剂系统,特别是那些涉及协同相互作用的系统,是优化性能的关键.
- 三元表面活性剂及其与其他表面活性剂类型的组合,由于其复杂的结构,具有独特的特性.
研究的目的:
- 为了研究三元表面活性剂 (Citric-3C12) 与离子-非离子表面活性剂 (9-EOS/12-EOS) 混合的聚合行为和协同效应.
- 评估不同摩尔分数对混合表面活性剂系统性质的影响.
- 描述界面和细胞组成和吸附行为.
主要方法:
- 测量表面张力 测量表面张力
- 动态光散射 (DLS) 是一种
- 泽塔潜力分析分析
- 低温传输电子显微镜 (Cryo-TEM) 是一种电子显微镜.
- 理想的混合和常规溶液模型.
主要成果:
- 负相互作用参数 (βσ和βm) 表示强烈的协同作用.
- 与单个表面活性剂相比,混合系统表现出明显较低的表面张力和临界微粒度 (CMC).
- 表面活性剂在CMC上方形成囊泡,在电荷中和后的尺寸下降.
- 观察到增强的油水界面活动和在疏水表面的优越可湿性.
结论:
- 三聚离子和离子-非离子表面活性剂的组合表现出由静电,疏水和结合相互作用驱动的显著协同作用.
- 混合表面活性剂系统显示出卓越的界面吸附和湿特性.
- 这些发现表明,在需要增强表面活动和受控自组装的领域有潜在的应用.
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