长短链醇混合单分子膜抑制水分蒸发的研究  

Study on the retardation of water evaporation with monolayers of fatty alcohols and short chain alcohols

作　　者：吴燕[1] 夏萍[1] 衣守志[1] 

机构地区：[1]天津科技大学材料科学与化学工程学院,天津300222

出　　处：《功能材料》2007年第A09期3412-3414,共3页Journal of Functional Materials

基　　金：天津市高等学校科技发展基金资助项目（20060513）;天津科技大学引进人才启动基金资助项目（20060413）

摘　　要：以长链脂肪醇作为水分蒸发抑制剂，探讨了短链醇的引入、长短链醇的复配比例、环境温度等因素对分子膜抑制水分蒸发效果的影响。研究结果表明：与长链醇相比，将长短链醇复配可大幅度提升分子膜抑制水分蒸发的效果。其中，十六醇与正丁醇的复配效果最好，在温度为25℃，膜表面浓度为8．0×10^-2／m^2，复配比例为3：1时，抑制率最高可达66．7％。并且，混合单分子膜具有更好的抗温度干扰能力。分子膜的APM图像显示，长短链醇复配能形成比长链醇更为凝聚的分子膜，产生更为理想的抑制水分蒸发效果。The water evaporation retardants are prepared with blends of long chain fatty alcohol and short chain alcohol. The affect factors of the rate of retardation of water evaporation with monolayers are discussed, such as the addition of short chain alcohol, mixed ratios of fatty alcohol and short chain alcohol, environmental temperature etc. The results show that the percentage resistance of water evaporation at 25℃is up to 66.7%, when the surface concentration of monolayer is 8.0×10^-2g/m^2, the mixed ratio of hexadecanol and butanol is 3 ： 1. The mixed monolayers show an enhanced effect on the retardation of water evaporation and the ability of anti-temperature interference. From AFM observation of transferred films on mica, it has been found that the mixed monolayers of hexadecanol with butanol give a film with a less-defective.

关 键 词：脂肪醇 短链醇 抑制水分蒸发 混合单分子膜 

分 类 号：Q647.1[生物学—生物物理学]