Nonuniform Thinning of Polymeric Coatings under Marangoni Stress
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概要
- 論文の詳細を見る
We investigate the surface deformation of polymeric coatings dried under interfacial stresses. The surface-tension-driven Marangoni stress drives the liquid from low-surface-tension regimes to high-surface-tension regimes. The results of our computations reveal that with an increase in the Biot number, three distinct deformation modes are formed: (i) one elevation and two depressions, (ii) flat interface, and (iii) one depression near the air impingement point. A new drying map is presented to show the manner in which the nonuniform thickness varies with the Biot and Marangoni numbers. The map helps us decide the optimum operating conditions for achieving uniform surface coatings.
- 社団法人化学工学会の論文
- 2010-03-01
著者
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Kage Hiroyuki
Department Of Applied Chemistry Kyushu Institute Of Technology
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Kage Hiroyuki
Dep. Of Applied Chemistry Kyushu Inst. Of Technol.
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YAMAMURA Masato
Department of Materials Science, Kyushu Institute of Technology
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MAWATARI Yoshihide
Department of Applied Chemistry, Kyushu Institute of Technology
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WAJIMA Shiro
Department of Applied Chemistry, Kyushu Institute of Technology
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Mawatari Yoshihide
Department Of Applied Chemistry Kyushu Institute Of Technology
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Yamamura Masato
Department Of Applied Chemistry Kyushu Institute Of Technology
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Wajima Shiro
Department Of Applied Chemistry Kyushu Institute Of Technology
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