稳态磁场对液体润湿角的影响  

Effect of steady magnetic field on wetting angles of liquids

作　　者：曹洋[1,2,3] 郭锐 何盛亚[1,2,3] 李传军 玄伟东[1,2,3] 王江[1,2,3] 任忠鸣[1,2,3] CAO Yang;GUO Rui;HE Shengya;LI Chuanjun;XUAN Weidong;WANG Jiang;REN Zhongming(State Key Laboratory of Advanced Special Steel,Shanghai University,Shanghai 200444,China;Shanghai Key Laboratory of New Technology Development and Application of Iron and Steel Metallurgy,Shanghai University,Shanghai 200444,China;School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China)

机构地区：[1]上海大学省部共建高品质特殊钢冶金与制备国家重点实验室,上海200444 [2]上海大学上海市钢铁冶金新技术开发应用重点实验室,上海200444 [3]上海大学材料科学与工程学院,上海200444

出　　处：《上海大学学报（自然科学版）》2019年第2期215-221,共7页Journal of Shanghai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(U1560202;51690162;51604172)

摘　　要：利用润湿角测量仪测量了稳态磁场下去离子水和甘油在有机玻璃表面的润湿角,发现两种液体的润湿角随磁场强度增加而减小. 5 T磁场下去离子水和甘油的润湿角分别减小了10.8%和4.0%.分析表明,磁场下润湿角减小源于磁场削弱了液体分子间相互作用从而减小了液体表面张力,进而导致两种液体的润湿性能得到提升.Wetting angles of liquids such as deionized water and glycerol on the surface of plexiglass were measured using wetting angle goniometer.It was found that the wetting angles of the two liquids decreased with increasing magnetic field intensity.In the magnetic field of 5 T,decreases of wetting angles of two liquids were up to 10.8% and 4.0%,respectively. The phenomenon was attributed to the weakening of intermolecular interaction in liquids in a magnetic ield,reducing surface tensions of liquids and improving wetability of the two liquids.

关 键 词：润湿角 磁场 分子间作用 表面张力 

分 类 号：O441.2[理学—电磁学]