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Colloids and Interfaces, Free Full-Text

Colloids and Interfaces, Free Full-Text

Most reported slip length measurements have been made at the surfaces of synthetic materials and modified synthetic materials. In contrast, few slip length measurements at the surface of unmodified natural mineral surfaces have been reported. In this regard, flow at the silica face surfaces of the phyllosilicate minerals, talc and mica, was considered. A slip boundary condition was expected at the nonpolar hydrophobic silica surface of talc leading to enhanced flow, and a no-slip boundary condition was expected at the hydrophilic silica surface of mica. Atomic force microscopy (AFM) slip length measurements were made at the talc and mica surfaces. The slip length results for the hydrophobic silica surface of talc were contrasted to the results for the hydrophilic silica surface of mica (no-slip flow). The results are discussed based on molecular dynamics simulations (MDS), as reported in the literature, and AFM images of surface nanobubbles. For nonpolar hydrophobic surfaces (such as talc), it is doubtful that the MDS interfacial water structure and the water exclusion zone (3.2 Å) account for the AFM slip flow with slip lengths as great as 95 nm. Rather, a better explanation for the AFM slip flow condition is based on reduced interfacial viscosity due to the presence of dissolved gas and the accommodation of pancake nanobubbles at the talc surface having a height dimension of magnitude similar to the slip length.

Progress in Colloid and Interface Science - Book Series - Routledge & CRC Press

Colloids and Interfaces, Free Full-Text

Colloids and Interfaces An Open Access Journal from MDPI

Colloids and Surfaces A: Physicochemical and Engineering Aspects, Journal

Colloid and interface chemistry : Vold, Robert D : Free Download, Borrow, and Streaming : Internet Archive

Colloids and Interfaces, Free Full-Text

Colloids and Interfaces An Open Access Journal from MDPI

Colloids and Interfaces, Free Full-Text

Colloids and Interfaces, Free Full-Text

Colloidal Particles at a Range of Fluid–Fluid Interfaces

Molecular dynamics simulations of the colloidal interaction between smectite clay nanoparticles in liquid water - ScienceDirect

Journal of Colloid and Interface Science, Vol 602, Pages 1-902 (15 November 2021)