Abstract
The inter‐particle bonding energy between mono‐modal spherical PMMA particles with different particle sizes in aqueous media was evaluated by both Usui's thixotropy model and an atomic force microscope (AFM) measurement. Usui has recently proposed the thixotropy model in which the number of primary particles contained in an aggregated cluster was adopted as the thixotropic model parameter. This model was mainly developed for silica‐water slurries which showed typical non‐Newtonian and thixotropic characteristics. In this model, inter‐particle bonding energy between primary particles is easily determined when the steady state viscosity data are given experimentally. On the other hand, the adhesive force between two particles was tried to measure directly by AFM in liquid recently. It is known that both the adhesive and repulsive forces between two particles were obtained through the force curve measurement. In this presentation, the inter‐particle bonding energy was not only calculated by Usui's thixotropy...
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