论文标题
胶体分散剂干燥的物理学：图案形成和干燥裂纹
The Physics of Drying of Colloidal Dispersion: Pattern Formation and Desiccation Cracks
论文作者
论文摘要
胶体分散体的干燥及其合并为颗粒沉积物是一种常见现象。该过程涉及各种物理过程，例如液体分子扩散到环境大气中，并通过蒸发驱动的流量扩散分散的颗粒。形成干燥沉积物的胶体颗粒表现出不同的模式，并且经常具有结构缺陷，例如干燥裂纹。本章对胶体分散和各种相关现象的干燥进行了介绍性综述。原则上，胶体分散，巩固过程和流体流动动力学的干燥均以多种干燥构型进行了研究。在这里，我们解释了干燥诱导的现象与无柄滴干干燥。我们首先介绍胶体，提供有关干燥物理学的背景，然后解释模式和干燥裂纹的形成。简要说明了蒸发驱动的流量及其对颗粒积累的影响，各种物理参数对模式形成和裂纹的影响均简要说明。
Drying of colloidal dispersion and their consolidation into a particulate deposit is a common phenomenon. This process involves various physical processes such as diffusion of liquid molecules into the ambient atmosphere and advection of dispersed particles via evaporation driven flow. The colloidal particles forming a dried deposit exhibits distinct patterns and frequently possess structural defects such as desiccation cracks. This chapter gives an introductory review of the drying of colloidal dispersion and various associated phenomena. In principle, the drying of colloid dispersion, the process of their consolidation, and fluid-flow dynamics are all studied in numerous drying configurations. Here we explain drying induced phenomena concerning sessile drop drying. We begin with an introduction to colloids, provide background on the physics of drying, and then explain the formation of pattern and the desiccation cracks. The role of evaporation driven flows and their influence on particle accumulation, the impact of various physical parameters on pattern formation and cracks are all briefly illustrated.
