書誌事項
- タイトル別名
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- Investigation of Surface Forces in Highly Viscous Polymer Solutions by Colloidal Probe AFM Method
- コウネンセイ コウブンシ ヨウエキ チュウ デ ノ コロイドプローブ AFMホウ ニ ヨル ヒョウメン カンリョク ノ ヒョウカ
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The interaction between silica particle and mica substrate in highly viscous aqueous polyvinyl alcohol （PVA） solutions of different concentrations was determined by colloidal probe AFM. Since a large hydrodynamic force acts on the colloidal probe in highly viscous solutions, it is difficult to determine the actual interaction between the colloidal probe and the substrate in concentrated polymer solutions. In this study, the hydrodynamic force acting on the colloidal probe in an aqueous solution was determined at a relatively long surface distance ranging from 500 to 900 nm, and the hydrodynamic force acting on the colloidal particle was estimated by Stokes' law. The influence of the polymer concentration on the interaction forces between the silica particle and mica substrate was investigated, where the calculated hydrodynamic force was subtracted from the measured force-distance curve. The attractive force resulting from van der Waals interaction was not observed in PVA solutions. At PVA concentrations below 6 mass％, the repulsive force resulting from the adsorption of PVA on silica particles decreased with increasing PVA concentration. At 9 and 12 mass％ PVA, the repulsive force and the amount of adsorbed PVA showed a sudden increase. It was suggested that the repulsive force is correlated to the amount of adsorbed PVA.
収録刊行物
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- 粉体工学会誌
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粉体工学会誌 52 (4), 188-195, 2015
一般社団法人 粉体工学会
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詳細情報 詳細情報について
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- CRID
- 1390282679488861568
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- NII論文ID
- 130005065078
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- NII書誌ID
- AN00222757
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- ISSN
- 18837239
- 03866157
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- NDL書誌ID
- 026336100
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可