The Surface Tension Components of Mixed Surfactant Solutions

혼합계면활성제 용액의 표면장력 성분

  • 정혜원 (인하대학교 가정대학 의류학과) ;
  • 윤혜신 (인하대학교 가정대학 의류학과)
  • Published : 1996.07.01


In order to study the affect of surfactants on the soil removal, the dispersion and polar force components of surface tension for surfactant solutions (such as LAS, AS, AOS, AES, AE) were calculated using extended Fowkes equation. The contact angles on paraffin and surface tension of surfactant solutions were measured. Cmcs of LAS, AS, AES and AE were below the concentration of 0.05%, but the cmc of AOS was between 0.05% and 0.1%. The surface tension of AE was lowest but the dispersion force component was greastest. Total surface tension of every mixed anionic surfactant was lower than that of single surfactants, and the dispersion force components were almost decreased. The addition of sodium carbonate to the sufactant solutions decreased the surface tension, and the surface tensions of surfactant solutions were lowered after washing.