島根大学教育学部紀要. 自然科学

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島根大学教育学部紀要. 自然科学 5
1971-12-20 発行

高分子溶液中での繊維のζ電位測定

ζ-potential Measurements of Fiber in the Presence of Polymer Solution
錦織 禎徳
ファイル
内容記述(抄録等)
ζ-potential measurements of vinylon fiber in the presence of polymer solutions were carried out by the stream compression method. The polymers used were polyethylene oxide (PEO), sodium polyacrylate (SPA) and Tororo-aoi mucilage (TA). The relation between the stream compression method and permeability equation which is the underlying principle of the method was discussed. The stream potential data in all solutions yielded the swollen specific volums of fiber, α, which were significantly greater than those calculated from permeability data. The discrepancy between the α values from stream and permeability methods was interpreted by the β-layer, in which partially dissolved molecules of fiber, bearing an electrical charge, extend into the liquid. Futhermore, the α values from both methods for vinylon in polymer solutions were greater than that in water. It is presumed that the large α values in polymer solutions arise from the non-Newtonian flow of the solutions , and that with viscosity correction both the stream compression and permeability methods are valid for the determination of ζ, α and surface area of fiber in polymer solutions.