프로필렌 옥사이드를 부가한 소듐 라우레스 설페이트 음이온 계면활성제의 계면 특성에 관한 연구

Abstract

In this study, ASCO((R)) SLES-430 surfactant was synthesized by adducting 3 moles of ethylene oxide and 1 mole of propylene oxide to lauryl alcohol followed by a sulfation process, and the structure of the synthesized ASCO((R)) SLES-430 was elucidated by performing FT-IR, H-1-NMR and C-13-NMR analyses. Interfacial properties such as critical micelle concentration, static surface tension, emulsification index, and contact angle were measured, and environmental compatibility indices such as oral toxicity and skin irritation were also estimated for ASCO((R)) SLES-430. Both results were compared with ASCO((R)) SLES-226 and ASCO((R)) SLES-328 SLES surfactants possessing 2 moles and 3 moles of ethylene oxide, respectively. In particular, both foaming ability and foam stability were evaluated for ASCO. SLES-430 and compared with ASCO((R)) SLES-226 and ASCO((R)) SLES-328, which have been widely used in detergent products, in order to test the potential applicability of ASCO((R)) SLES-430 in detergent product formulation for a small capacity built-in washing machine.