DLVO理论
化学物理
胶粒
平面的
材料科学
相(物质)
溶剂
毛细管作用
胶体
化学工程
二进制数
脚手架
自组装
纳米技术
纳米颗粒
化学
复合材料
有机化学
算术
计算机图形学(图像)
工程类
计算机科学
数学
作者
Eduardo Sanz,K. A. White,Paul S. Clegg,Michael E. Cates
标识
DOI:10.1103/physrevlett.103.255502
摘要
The liquid-liquid phase separation of a binary solvent can be arrested by colloidal particles trapped at the interface [K. Stratford et al., Science 309, 2198 (2005)]. We show experimentally that the colloidal network so formed can remain stable after fully remixing the liquids, creating a new type of gel in which colloids in a single-phase solvent have locally planar coordination. We argue that this structure is likely maintained by primary-minimum Derjaguin-Landau-Verweg-Overbeek bonding of our charged colloids, created under strong compression by capillary forces. We present simulation evidence that the combination of a short-ranged attraction with a repulsive barrier can strongly stabilize such locally planar gels.
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