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微体中的纳米尺度孔隙斗粒子间毛细体吸引力流体界面上的毛细体吸引力

Samuel Trevenen¹, Md Anisur Rahman¹, Heather S C Hamilton²

¹Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States.

|June 5, 2023

概括

研究人员设计了多孔圆体,以控制流体界面上的毛细血管力. 这一突破减少了粒子间的吸引力,使复杂结构能够从异性质粒子中自组装.

科学领域:

材料科学材料科学材料科学
软物质物理学软物质物理学
体科学体科学体科学

背景情况:

流体界面上的异型粒子由于强大的毛细管力而形成无序的结构.
目前的方法经常使用同位体球体,限制了复杂的自组装可能性.
控制粒子间相互作用是 anisotropic 粒子有序组装的关键.

研究的目的:

合成和研究用于接口组装的多孔合体圆体.
为了减少水空界面上的异质粒子之间的毛细管吸引力.
为了能够创建具有复杂配置的远程有序结构.

主要方法:

体圆体的合成与纳米级的多孔性.
在水空气界面上的光滑,粗和多孔圆体的比较.
使用干扰计测量监测粒子动力学和流体变形.

主要成果:

多孔圆体在粒子间的毛细管吸引力中表现出一个数量级的减少.
多孔颗粒显示出短距离的毛细管相互作用潜力,具有独特的缩放.
在多孔圆体周围的流体变形缺乏四极对称性,证实了毛细管能量减少.

结论:

工程纳米结构表面上的异构粒子控制界面毛细管相互作用.
这种方法促进了复杂的二维微观结构的自我组装.
多孔圆体提供了一条途径,以克服自我组装的异性质材料中的障碍.

关键词:

异型粒子是一种异型粒子.毛细化是指毛细化的情况.合物合物合物接口接口接口接口自动组装的自动组装机

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