Coating Flows of Power-Law Non-Newtonian Fluids in Slot Coating
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- Tsuda Takeaki
- Dai Nippon Printing Co., Ltd.
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抄録
One-dimensional flow equations were derived for non-Newtonian fluids in slot coating and a simple numerical method was proposed to solve the equations. We investigated non-Newtonian effects on coating performance and coating quality in slot coating. In some cases, computational results and experimental data were compared and both agreed well. A series of numerical computations showed that the one-dimensional approach can describe non-Newtonian flow under lips in a few minutes and that a pressure field equation proposed by Higgins can determine the location of an upstream meniscus. Moreover, it was found that the non-Newtonian characteristics of coating liquids affect both coating performance and coating quality. Because each non-Newtonian effect is quite different, we should optimize the conditions of slot coating and die geometries according to the target problem.
収録刊行物
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- 日本レオロジー学会誌
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日本レオロジー学会誌 38 (4_5), 223-230, 2010
一般社団法人 日本レオロジー学会
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詳細情報 詳細情報について
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- CRID
- 1390001205090927104
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- NII論文ID
- 10029819241
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- NII書誌ID
- AN00198812
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- ISSN
- 21864586
- 03871533
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- NDL書誌ID
- 10960408
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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
- IRDB
- NDL
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- 使用不可