【作者】 吴燕； 夏萍； 衣守志；

【Author】 WU Yan XIA Ping YI Shou-zhi (School of Material Science and Chemical Engineering,Tianjin University Science & Technology,Tianjin 300222,China)

【机构】 天津科技大学材料科学与化学工程学院；

【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^-2g/m²,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 AFM 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．更多还原

【Abstract】 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/m²,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.更多还原