Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Synthesis of Carboxylate-Based Anionic surfactant from Coconut Oil Source and Characterization of Interfacial Properties

코코넛 오일로부터 유래된 카르복실레이트계 음이온 계면활성제의 합성 및 계면 특성에 관한 연구

  • Lee, Ye Jin (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Park, Ki Ho (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Shin, Hee Dong (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Lim, Jong Choo (Department of Chemical and Biochemical Engineering, Dongguk University)
  • 이예진 (동국대학교 공과대학 화공생물공학과) ;
  • 박기호 (동국대학교 공과대학 화공생물공학과) ;
  • 신희동 (동국대학교 공과대학 화공생물공학과) ;
  • 임종주 (동국대학교 공과대학 화공생물공학과)
  • Received : 2021.03.25
  • Accepted : 2021.03.30
  • Published : 2021.06.10
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Abstract

In this study, a carboxylate-based anionic surfactant SLEC-3 was prepared from coconut oil and the structure was elucidated by using FT-IR, 1H-NMR and 13C-NMR analysis. Measurements of interfacial properties such as critical micelle concentration, static and dynamic surface tensions, emulsification index, and foam stability have shown that SLEC-3 is better in terms of interfacial activity and more effective in lowering interfacial free energy than those of SLES, which has been widely used as a conventional anionic surfactant in the detergent industry. Biodegradability, acute oral toxicity and dermal irritation tests also revealed that SLEC-3 surfactant possesses excellent mildness and low toxicity, indicating the potential applicability in detergents and cleaner products formulation.

본 연구에서는 코코넛 오일로부터 카르복실레이트계 음이온 계면활성제 SLEC-3을 합성하였으며, 합성된 계면활성제의 구조를 FT-IR, 1H-NMR 및 13C-NMR 분석을 통하여 확인하였다. 합성한 계면활성제 SLEC-3에 대하여 임계 마이셀 농도, 정적 및 동적 표면장력, 유화력, 거품 안정성 등의 계면 물성을 측정한 결과, 기존 세제 제품에서 널리 사용되는 음이온 계면활성제 SLES와 비교하여 계면 활성이 보다 우수하고 계면 에너지를 낮추는데 더 효과적이었다. 또한 SLCE-3에 대한 생분해성, 급성 경구 독성 및 급성 피부자극 시험을 실시한 결과, 저자극 및 저독성을 가지고 있기 때문에 세제 및 세정제 제품에 적용할 수 있을 것으로 판단되었다.

Keywords

Acknowledgement

본 연구는 산업통상자원부 소재부품기술개발-소재부품패키지형(과제번호 20011027, 반도체 디스플레이 공정용 불소계 계면활성제 제조기술 개발)의 지원을 받아 수행되었으며, 이에 감사드립니다.

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