Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Interfacial Properties of Propylene Oxide Adducted Sodium Laureth Sulfate Anionic Surfactant

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

  • Jeong Min Lee (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Ki Ho Park (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Hee Dong Shin (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Woo Jin Jeong (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Jong Choo Lim (Department of Chemical and Biochemical Engineering, Dongguk University)
  • 이정민 (동국대학교 화공생물공학과) ;
  • 박기호 (동국대학교 화공생물공학과) ;
  • 신희동 (동국대학교 화공생물공학과) ;
  • 정우진 (동국대학교 화공생물공학과) ;
  • 임종주 (동국대학교 화공생물공학과)
  • Received : 2023.03.30
  • Accepted : 2023.04.24
  • Published : 2023.06.10
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Abstract

In this study, ASCOⓇ 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Ⓡ SLES-430 was elucidated by performing FT-IR, 1H-NMR and 13C-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Ⓡ SLES-430. Both results were compared with ASCOⓇ SLES-226 and ASCOⓇ 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Ⓡ SLES-226 and ASCOⓇ SLES-328, which have been widely used in detergent products, in order to test the potential applicability of ASCOⓇ SLES-430 in detergent product formulation for a small capacity built-in washing machine.

본 연구에서는 라우릴 알코올에 에틸렌 옥사이드 3 몰과 프로필렌 옥사이드 1 몰을 부가한 후 설페이션을 공정을 거쳐서 ASCOⓇ SLES-430을 제조하였으며, 합성한 계면활성제의 구조를 FT-IR, 1H-NMR 및 13C-NMR 분석을 통하여 확인하였다. 합성한 ASCOⓇ SLES-430의 임게 마이셀 농도, 정적 표면장력, 유화력, 접촉각 등의 계면 물성과 경구 독성 및 피부 자극성 등의 안정성 지표 등을 측정하였으며, SLES 계면활성제 내에 에틸렌 옥사이드가 각각 2 몰 및 3 몰 부가된 ASCOⓇ SLES-226 및 ASCOⓇ SLES-328 계면활성제들과 비교하였다. 특히, ASCOⓇ SLES-430의 기포 생성력과 기포 안정성을 평가하여 기존 세제 제품에서 널리 사용되고 있는 ASCOⓇ SLES-226과 ASCOⓇ SLES-328과 비교함으로써 ASCOⓇ SLES-430의 소형 빌트인 세탁기용 세제 적용 가능성을 검토하였다.

Keywords

Acknowledgement

본 연구는 산업통상자원부 월드클래스플러스사업 (P133500002, 탄소 중립화를 위한 바이오 천연원료 사용으로 가정용 주방, 개인용품 및 화장품 적용이 가능한 친환경 음이온 계면활성제 개발)의 지원을 받아 수행되었으며, 이에 감사드립니다.

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