Two-step migration of particles in evaporating bimodal suspension films at high Peclet numbers
作者: Tomonori TashimaMasato Yamamura
作者单位: 1Kyushu Institute of Technology
刊名: Journal of Coatings Technology and Research, 2017, Vol.14 (5), pp.965-970
来源数据库: Springer Journal
DOI: 10.1007/s11998-017-9946-1
关键词: SuspensionDryingCoatingMigrationPhotoluminescence
英文摘要: During the drying of bimodal colloidal suspensions containing particles of various sizes, smaller particles preferentially migrate to the top surface under particular drying conditions, leading to undesirable drying defects in batteries and in other coating applications. Despite extensive previous studies, the migration mechanism is far from being understood because few in situ observations are available to support the hypotheses. To remedy this, we use real - time photoluminescence (PL) microscopy to investigate the migration of small fluorescent latex particles co-dispersing with large nonemissive latex particles. Comparing the measured PL intensity with that predicted by a model allows us to determine the quantity of small particles near the evaporating surface. The results reveal that...
原始语种摘要: During the drying of bimodal colloidal suspensions containing particles of various sizes, smaller particles preferentially migrate to the top surface under particular drying conditions, leading to undesirable drying defects in batteries and in other coating applications. Despite extensive previous studies, the migration mechanism is far from being understood because few in situ observations are available to support the hypotheses. To remedy this, we use real - time photoluminescence (PL) microscopy to investigate the migration of small fluorescent latex particles co-dispersing with large nonemissive latex particles. Comparing the measured PL intensity with that predicted by a model allows us to determine the quantity of small particles near the evaporating surface. The results reveal that...
全文获取路径: Springer  (合作)
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影响因子:1.094 (2012)

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关键词翻译
关键词翻译
  • migration 迁移
  • dispersing 分散的
  • evaporating 蒸发
  • colloidal 胶质的
  • films 薄膜
  • bimodal 双峰的
  • attributed 属性
  • reveal 显露
  • large 大的
  • evaporation 蒸发