By Yan Zeng
This dissertation contributes to the certainty of primary matters within the hugely interdisciplinary box of colloidal technology. past colloid technological know-how, the procedure additionally serves as a version for learning interactions in organic subject.
This paintings quantitatively investigated the scaling legislation of the attribute lengths of the structuring of colloidal dispersions and proven the generality of those legislation, thereby explaining and resolving a few long-standing contradictions in literature.
It published the influence of confinement at the structuring, independently of particular homes of the confining interfaces. furthermore, it resolved the impression of roughness and cost of the confining interfaces at the structuring and besides delivering a style to degree the influence of floor deformability on colloidal structuring.
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Extra resources for Colloidal Dispersions Under Slit-Pore Confinement
6) An attractive force between AFM probe and substrate causes an extension and a positive deformation while a repulsive force causes a negative deformation. During the measurements, an absolute measure of the shape change of the bubble surface is not known, only the changes in X are measured. g. interferometry. Thus it is difficult to plot F versus h. Instead F versus X is presented in this thesis. 7) The “contact point” (zero X ) was taken to be the point at which the linear compliance line reached zero force, followed by the previous protocols on deformable surfaces [10, 11].
When φ is known, the variation of h is equivalent to a simple horizontal translation of the experimental curve with respect to the theoretical one, the latter being uniquely determined. The minimization of with respect to h corresponds to the best coincidence of the two curves. When φ is not known, both h and φ should be 20 2 Scientific Background varied to minimize numerically in Eq. 43, and to find the best fit. When calculating the theoretical curves, in Eq. 29 the value A H = 7 × 10−21 J of the Hamaker constant for silica/water/silica films is used .
Therefore, the experimental AFM and SAXS results are completely consistent with the DFT prediction λ f = λb [28, 29]. Moreover, one see from Fig. 3 that there is excellent agreement between experimental and theoretical data for λ f . 36 decay of surface forces, which conforms with the DFT predictions [28, 29]. It is also noted that, irrespective of the concentration considered, the amplitudes and phases characterizing the experimental data are different from those of the theoretical functions F(h) illustrated in Fig.