Studies on the Dynamic Surface Tension of GL12 and Anionic Mixtures

N-Dodecanoyl, N-Methyl Glucamine(GL 12)과 음이온 계면활성제 혼합물의 Dynamic Surface Tension에 관한 연구

  • 안호정 (한양대학교 공과대학 공업화학과) ;
  • 최규석 (한양대학교 공과대학 공업화학과)
  • Received : 1995.09.14
  • Accepted : 1995.12.15
  • Published : 1996.02.12

Abstract

The dynamic surface tension of GL12 (easily biodegradable nonionic surfactant and mild to skin), LAS and SLES aqueous solutions and that of mixed surfactant systems were measured by the maximum bubble pressure method at different mixing ratios. The effects of various salt such as NaCl, CsCl and urea on the dynamic surface tension of mixed surfactant systems were also studied. The dynamic surface tension of GL12 was not influenced by the presence of salts. On the contrary, the dynamic surface tensions of anionic surfactants (LAS and SLES) were significantly affected by the salts. In the mixed surfactant systems, the effect of salt increased as the composition of anionic LAS or SLES increased in the GL12/LAS and GL12/SLES mixtures.

Keywords

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