Synthesis, Surface Activity, and Antifogging Property of Triethanolamine Monolaurate Ester  

三乙醇胺月桂酸单酯的合成、表面活性及防雾性能

作　　者：蔡梦军[1] 李青青[1] 陈雪梅[1] 

机构地区：[1]华东理工大学化工学院、超细粉末国家工程研究中心,上海200237

出　　处：《Chinese Journal of Chemical Physics》2015年第2期223-229,I0002,共8页化学物理学报（英文）

摘　　要：Triethanolamine monolaurate ester was synthesized by lauric acid and triethanolamine （TEA） with a molar ratio around 1：1 and the esterification process was investigated and optimized. The esterification product of lauric acid with TEA was characterized by infrared spectra and nuclear magnetic resonance. The surface tension （TCMC） at the critical micelle concentration （CMC） was determined, and the antifogging properties of triethanolamine laurate ester on low-density polyethylene （LDPE） films were also measured. The results indicated that the yield of triethanolamine monolaurate ester was more than 69% under optimized esterification condition, the CMC value and 7CMC of esterification product was 0.91 p.g/mL and 22.1 mN/m in aqueous solution at 25 ℃, respectively. The first-drop time and ten-drop time was 257 and 86 s, respectively, and the antifogging duration of triethanolamine laurate ester on the surface of LDPE film at 60 ℃ was more than 150 h.

关 键 词：TRIETHANOLAMINE LAURATE SURFACTANT Antifogging property 

分 类 号：O[理学]