- 고급지방산 에스테르형 양이온 제미니 계면활성제의 합성 및 특성
- ㆍ 저자명
- 박종권,정노희,Park. Jong-Kwon,Jeong. Noh-Hee
- ㆍ 간행물명
- 한국유화학회지
- ㆍ 권/호정보
- 2011년|28권 2호|pp.140-145 (6 pages)
- ㆍ 발행정보
- 한국유화학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Cationic gemini-surfactant, namely 1,4-butane-bis(N-alkanoyloxyethyl-N,Ndimethyl)-diammonium bromide was synthesized and their inhibition effect on corrosion of mild steel in 1 M HCl solution was tested by weight loss method. The synthesized product was confirmed by FT-IR and $^1H-NMR$ spectroscopy. Surface tensions were measured by surface tensiometer Sigma 70. Their c.m.c. values evaluated by surface tension method was $4.1{ imes}10^{-5}{sim}5.4{ imes}10^{-5}$ mol/L. The Krafft point of the these surfactants were <0~$10.7^{circ}C$. The emulsifying properties of synthesized cationic gemini surfactants and sodium dodecyl sulfate (SDS), tetradecyl trimethyl ammonium bromide (TTAB) was investigated. Of these, 1,4-butane-bis(N-lauroyloxyethyl-N,N-dimethyl)- diammonium bromide, CGL 14-4-14 has been confirmed as a good emulsifier. The inhibition efficiency increases by increasing cationic gemini surfactant concentration. As a result, these surfactants are expected to be applied as corrosion inhibitors.