한국의류학회지 (Journal of the Korean Society of Clothing and Textiles)
- 제24권7호
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- Pages.1065-1072
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- 2000
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- 1225-1151(pISSN)
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- 2234-0793(eISSN)
Span 20과 Tween계 계면활성제의 물/공기 계면에서의 분자면적과 계면장력 거동
Molecular Area and Interfacial Tension Behavior of Span 20 and Tween series surfactants at water/air interface
초록
The molecular areas and the interfacial tension behavior of ten nonionic surfactants, i.e., Span 20 and Tween 20, 40, 60. 80, 21, 61, 81, 65, & 85 are tested to assay their effects on the wetting and liquid retention properties of hydrophilic and hydrophobic fibrous materials. The molecular areas at water/air interface are derived from Gibbs’adsorption equations. The following conclusions are drawn from the results: 1) Span 20 is efficient in lowering the interfacial tension and effective in adsorption at the water/air interface, resulting in the low interfacial tension at critical micelle concentration (
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