硬球体的三元混合物及其多个分离的相
Luka Sturtewagen1, Erik van der Linden1
1Laboratory of Physics and Physical Chemistry of Foods, Wageningen University, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands.
Molecules (Basel, Switzerland)
|December 9, 2023
概括
本研究探讨了三元硬球混合物,揭示了添加第三个组件如何改变液相行为和相位图. 组件的兼容性在这些复杂系统中显著影响相位分离和分离.
科学领域:
- 物理化学 物理化学
- 材料科学 材料科学 材料科学
- 热力学是一种热力学.
背景情况:
- 了解多成分混合物的液相行为对于材料设计和化学过程至关重要.
- 硬球模型为研究解决方案中的相位过渡提供了一个基本框架.
研究的目的:
- 为了研究单分散硬球的三元混合物的液相行为.
- 为了确定与第三个组件 (C) 的不同相互作用如何影响相位图,包括二极管,三相边界和点.
- 在不同的条件下分析组件的分成.
主要方法:
- 理论建模三元混合物使用第二个virial系数添加式硬球 (HS) 和非添加式硬球 (NAHS) 相互作用.
- 计算相位边界 (双节,三相边界),点和旋点.
- 第三个组成部分 (C) 与前两个 (A和B) 相互作用的系统变化.
主要成果:
- 第三个组件 (C) 与其他两个组件的兼容性显著改变了相位图.
- 如果所有子混合物 (AB,AC,BC) 呈现相位分离,并且相容性足够高,那么三相系统是可能的.
- 三相区域的位置和范围取决于特定的组件间相互作用.
- 组件分成是受到初始度和组件间相互作用的影响.
结论:
- 添加第三个硬球元件可以导致复杂的相位行为,包括三相共存.
- 组件兼容性是确定三元混合物相位图结构的关键因素.
- 理论预测为理解和设计具有特定相隔性质的混合物提供了基础.
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