書誌事項
- タイトル別名
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- Squeezing Flow Successively Generated in the Normal and Reverse Directions in Polymer Solutions. 1st Report. Experiment on Transmitting Forces.
- コウブンシ ヨウエキ ノ オウフク スクイーズ ナガレ ニ カンスル ケンキュ
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抄録
In a pool of solution, an upper spherical surface is first approached (or separated) and subsequently made to separate (or approach) relative to a lower flat plate at a constant speed. The transmitted forces are measured, and the following are observed. In the cases of Separan solutions, the measured force overshoots the force estimated by viscous stress at the inception of the subsequent squeezing when a pause time taken in transit between the two squeezing is sufficiently long. However, when the pause time is short, the overshoot in the subsequent squeezing decreases because of an unrelaxed part of the stress produced in the preceding squeezing and the stress generated in the slow squeezing due to the springback of the load cells utilized. If more than 20% of the opposite force evaluated by viscous stress is unrelaxed and left at the inception of the subsequent squeezing, then no overshoot is developed. In the case of PEO solution, whose properties are similar to those of the Separan solution in steady flow, the force measured can be predicted by the viscous stress alone. It is considered that there is a difference between these two solutions in the molecular size of the polymer in water.
収録刊行物
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- 日本機械学会論文集B編
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日本機械学会論文集B編 58 (546), 441-448, 1992
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282680871867264
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- NII論文ID
- 110002391437
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- NII書誌ID
- AN00187441
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- COI
- 1:CAS:528:DyaK2cXitF2it78%3D
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- ISSN
- 18848346
- 03875016
- http://id.crossref.org/issn/03875016
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- HANDLE
- 10191/5741
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- NDL書誌ID
- 3752363
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可