稳态磁场对液体润湿角的影响
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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.
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.
引文
[1]Yamaguchi M,Tanimot Y.Magneto-science:magnetic field effects on materials:fundamentals and applications[M].Tokyo:Springer Series in Materials Science,2006:1-17.
[2]Hosoda H,Mori H,Sogoshi N,et al.Refractive indices of water and aqueous electrolyte solutions under high magnetic fields[J].Journal of Physical Chemistry A,2004,108(9):1461-1464.
[3]Cai R,Yang H W,He J S,et al.The effects of magnetic fields on water molecular hydrogen bonds[J].Jornal of Molecular Structure,2009,938:15-19.
[4]Iwasaka M,Ueno S.Structure of water molecules under 14 T magnetic field[J].Journal of Applied Physics,1998,83(11):6459-6461.
[5]Abdul-Majeed W S,Zimmerman W B.The study of the impact of mercury sample magnetization prior to detection by emission spectroscopy[J].Journal of Environmental Science and Engineering A,2012,1(3A):380-387.
[6]Cho Y I,Lee S H.Reduction in the surface tension of water due to physical water treatment for fouling control inn heat exchangers[J].International Communications in Heat and Mass transfer,2005,32:1-9.
[7]Ghauri S A,Ansari M S.Increase of water viscosity under the influence of magnetic field[J].Journal of Applied Physics,2006,100(6):066101.
[8]Marmur A.Soft contact:measurement and interpretation of contact angles[J].Soft Matter,2006,2(1):12-17.
[9]Pang X F,Deng B.The changes of macroscopic features and microscopic stuctures of water under influence of magnetic field[J].Physica B:Condensed Matter,2008,403(19/20):3571-3577.
[10]Otsuka I,Ozeki S.Does magentic treatment of water change its properties[J].Journal of Physical Chemisry B,2006,110(4):1509-1512.
[11]Ruijter M,Kolsch P,Voue M,et al.Effect of temperature on the dynamic contact angle[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,1998,144(1/2/3):235-243.
[12]Stalder A F,Melchior T,Muller M,et al.Low-bond axisymmetric drop shape analysis for surface tension and contact angle measurements of sessile drops[J].Colloids and surfaces APhysicochemical and Engineering Aspects,2010,364(1/2/3):72-81.
[13]Sasges M R,Ward C A.Effect of gravity on contact angle:An experimental investigation[J].Journal of Chemical Physics,1998,109(9):3661-3669.
[14]Good R J,Koo M N.The effect of drop size on contact angle[J].Journal of Colloid and Interface Science,1979,71(2):283-291.
[15]Taylor M,Urquhart A J,Zelzer M,et al.Pocolite water contact angle measurement on polymers[J].Langmuir,2007,23(13):6875-6878.
[16]Ems H,Ndao S.Microstructure-alone induced transition from hydrophilic to hydrophobic wetting state on silicon[J].Applied Surface Science,2015,339:137-143.
[17]Monnier C B,Shanahan M E R.Influence of evaporization on contact angle[J].Langmuir,1995,11(7):2820-2829.
[18]Nakagawa J,Hirota N,Kitazawa K,et al.Magnetic field enhancement of water vaporization[J].Journal of Applied Physics,1999,86(5):2923-2925.
[19]Kwok D Y,Neumann A W.Contact angle interpretation in terms of solid surface tension[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2000,161(1):31-48.
[20]Amiri M C,Dadkhah A A.On reduction in the surface tension of water due to magnetic treatment[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2006,278(1/2/3):252-255.
[21]庞晓峰,邓波.水在磁场作用后的特性变化研究[J].中国科学G辑:物理学力学天文学,2008,38(9):1205-1213.
[22]Krems R V.Breaking van der waals molecules with magnetic fields[J].Physical Review Letters,2004,93(1):013201.
[23]Zhou K X,Lu G W,Zhou Q C,et al.Monte carlo simulation of liquid water in a magnetic field[J].Journal of Applied Physics,2000,88(4):1802-1805.
[24]Oss C J,Good R J.Estimation of the polar surface tension parameters of glycerol and formamide,for use in contact angle measurements on polar solids[J].Journal of Dispersion Science and Technology,1990,11(1):75-81.
[2]Hosoda H,Mori H,Sogoshi N,et al.Refractive indices of water and aqueous electrolyte solutions under high magnetic fields[J].Journal of Physical Chemistry A,2004,108(9):1461-1464.
[3]Cai R,Yang H W,He J S,et al.The effects of magnetic fields on water molecular hydrogen bonds[J].Jornal of Molecular Structure,2009,938:15-19.
[4]Iwasaka M,Ueno S.Structure of water molecules under 14 T magnetic field[J].Journal of Applied Physics,1998,83(11):6459-6461.
[5]Abdul-Majeed W S,Zimmerman W B.The study of the impact of mercury sample magnetization prior to detection by emission spectroscopy[J].Journal of Environmental Science and Engineering A,2012,1(3A):380-387.
[6]Cho Y I,Lee S H.Reduction in the surface tension of water due to physical water treatment for fouling control inn heat exchangers[J].International Communications in Heat and Mass transfer,2005,32:1-9.
[7]Ghauri S A,Ansari M S.Increase of water viscosity under the influence of magnetic field[J].Journal of Applied Physics,2006,100(6):066101.
[8]Marmur A.Soft contact:measurement and interpretation of contact angles[J].Soft Matter,2006,2(1):12-17.
[9]Pang X F,Deng B.The changes of macroscopic features and microscopic stuctures of water under influence of magnetic field[J].Physica B:Condensed Matter,2008,403(19/20):3571-3577.
[10]Otsuka I,Ozeki S.Does magentic treatment of water change its properties[J].Journal of Physical Chemisry B,2006,110(4):1509-1512.
[11]Ruijter M,Kolsch P,Voue M,et al.Effect of temperature on the dynamic contact angle[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,1998,144(1/2/3):235-243.
[12]Stalder A F,Melchior T,Muller M,et al.Low-bond axisymmetric drop shape analysis for surface tension and contact angle measurements of sessile drops[J].Colloids and surfaces APhysicochemical and Engineering Aspects,2010,364(1/2/3):72-81.
[13]Sasges M R,Ward C A.Effect of gravity on contact angle:An experimental investigation[J].Journal of Chemical Physics,1998,109(9):3661-3669.
[14]Good R J,Koo M N.The effect of drop size on contact angle[J].Journal of Colloid and Interface Science,1979,71(2):283-291.
[15]Taylor M,Urquhart A J,Zelzer M,et al.Pocolite water contact angle measurement on polymers[J].Langmuir,2007,23(13):6875-6878.
[16]Ems H,Ndao S.Microstructure-alone induced transition from hydrophilic to hydrophobic wetting state on silicon[J].Applied Surface Science,2015,339:137-143.
[17]Monnier C B,Shanahan M E R.Influence of evaporization on contact angle[J].Langmuir,1995,11(7):2820-2829.
[18]Nakagawa J,Hirota N,Kitazawa K,et al.Magnetic field enhancement of water vaporization[J].Journal of Applied Physics,1999,86(5):2923-2925.
[19]Kwok D Y,Neumann A W.Contact angle interpretation in terms of solid surface tension[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2000,161(1):31-48.
[20]Amiri M C,Dadkhah A A.On reduction in the surface tension of water due to magnetic treatment[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2006,278(1/2/3):252-255.
[21]庞晓峰,邓波.水在磁场作用后的特性变化研究[J].中国科学G辑:物理学力学天文学,2008,38(9):1205-1213.
[22]Krems R V.Breaking van der waals molecules with magnetic fields[J].Physical Review Letters,2004,93(1):013201.
[23]Zhou K X,Lu G W,Zhou Q C,et al.Monte carlo simulation of liquid water in a magnetic field[J].Journal of Applied Physics,2000,88(4):1802-1805.
[24]Oss C J,Good R J.Estimation of the polar surface tension parameters of glycerol and formamide,for use in contact angle measurements on polar solids[J].Journal of Dispersion Science and Technology,1990,11(1):75-81.