S056021 微小油滴を含む界面活性剤水溶液のせん断流れにおける光散乱特性([S05602]複雑流体の流動現象(2))

概要

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In this study, a shear flow of surfactant solution including organic additives was investigated. The shear flow was implemented by using the parallel plates as fixtures of a rotational type rheometer. The organic additives were dispersed in a surfactant solution as micro oil droplets due to a decrease of surface tension. In experiments of SALS (Small Angle Light Scattering) using a laser light source, the scattering patterns like annulus rings were observed. It was considered that these patterns were related to the Mie scattering, which is produced when the size of oil droplet is comparable as a wavelength of laser. However, the configuration of scattering pattern changed with the increase in shear rate, and it was thought that this result was closely related to the deformation of wormlike micelles.
2011-09-11