[1]李广学,张茂润.硅油基复合磁流体稳定性的影响因素[J].东南大学学报(自然科学版),2005,35(4):619-623.[doi:10.3969/j.issn.1001-0505.2005.04.027]
 Li Guangxue,Zhang Maorun.Influential factors of the stability of complex magnetic liquid in silicon oil carrier[J].Journal of Southeast University (Natural Science Edition),2005,35(4):619-623.[doi:10.3969/j.issn.1001-0505.2005.04.027]
点击复制

硅油基复合磁流体稳定性的影响因素()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
35
期数:
2005年第4期
页码:
619-623
栏目:
化学化工
出版日期:
2005-07-20

文章信息/Info

Title:
Influential factors of the stability of complex magnetic liquid in silicon oil carrier
作者:
李广学 张茂润
安徽理工大学化学工程系, 淮南 232001
Author(s):
Li Guangxue Zhang Maorun
Department of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
关键词:
复合磁流体 硅油 分散体系 影响因素
Keywords:
complex magnetic liquid silicon oil dispersion system influential factor
分类号:
O654.162
DOI:
10.3969/j.issn.1001-0505.2005.04.027
摘要:
为了提高硅油基复合磁流体的稳定性,用化学法制备的纳米Co,Fe3O4微粒,经表面活性剂改性后再用过渡液进行复合包覆,借助超声分散和机械分散手段将其分散在硅油中,解决了磁微粒的团聚问题,得到了透光率低于2.5%的稳定分散体系——硅油基Co/Fe3O4超顺磁性复合磁流体.经振动样品磁强计测定,其饱和磁化强度达106.2 mT.分析了磁微粒与硅油形成稳定分散体系的条件及其影响因素.分析结果表明:影响磁微粒与硅油形成稳定分散体系的主要因素有磁微粒粒径的大小; 表面活性剂、过渡液的用量及分散的方式.
Abstract:
To improve the stability of complex magnetic liquid in silicon oil, Co, Fe3O4 nanoparticles prepared by chemical method and modified by surfactant and then composite coated by transition liquid are dispersed in silicon oil through ultrasonic and mechanic measure to eliminate aggregation of magnetic particulate. Therefore a stable dispersion system of Co/Fe3O4 complex magnetic liquid in silicon oil with light transmittance less than 2.5% is produced. The saturation magnetic intensity is up to 106.2 mT. The formation condition of the stable dispersion system in silicon oil carrier and its influential factors were investigated. The main factors that influence the formation of stable dispersion system of the magnetic particulate in silicon oil include the size of magnetic particle, surfactant, the dosage of the transition liquid, and the dispersion manner.

参考文献/References:

[1] Papell S S.Low viscosity magnetic fluid obtained by colloidal suspension of magnetic particles[P].US Patent,3215572.1965-10-02.
[2] Horng H E,Hong C Y,Yang S Y,et al.Novel properties and applications of magnetic fluids[J].Journal of Physics and Chemistry of Solids,2001,62(12):1749-1764.
[3] Seo J W,Park S J.An experimental study of light modulator using magnetic fluid for display applications[J].Journal of Magnetism and Magnetic Materials,1999,192(3):499-504.
[4] Piso M I.Applications of magnetic fluids for inertial sensors[J].Journal of Magnetism and Magnetic Materials,1999,201(2):380-384.
[5] Piso M I,Vékás L.Magnetic fluid composites and tools for microgravity experiments[J].Journal of Magnetism and Magnetic Materials,1999,201(3):410-412.
[6] Ganguly R,Sen S,Puri I K.Heat transfer augmentation using a magnetic fluid under the influence of a line dipole[J].Journal of Magnetism and Magnetic Materials,2004,271(1):63-73.
[7] Qi J,Wakayama N I,Yabe A.Magnetic control of thermal convection in electrically non-conducting or low-conducting paramagnetic fluids[J].International Journal of Heat and Mass Ttransfer,2001,44(16):3043-3052.
[8] Nakatsuka K,Jeyadevan B,Neveu S,et al.The magnetic fluid for heat transfer applications[J].Journal of Magnetism and Magnetic Materials,2002,252(4):360-362.
[9] Müller R,Hiergeist R,Steinmetz H,et al.Barium hexaferrite ferrofluids —— preparation and physical properties[J].Journal of Magnetism and Magnetic Materials,1999,201(1):34-37.
[10] Upadhyay R V,Davies K J,Wells S,et al.Preparation and characterization of ultra-fine MnFe2O4 and MnxFe1-xO4 spinel systems:Ⅱ.magnetic fluids[J].Journal of Magnetism and Magnetic Materials,1995,139(2):249-254.
[11] 朱传征,沈骎,徐超,等.钇铁氧体磁流体的超顺磁性研究[J].化学通报,2000,63(4):30-34.
  Zhu Chuanzheng,Shen Jin,Xu Chao,et al.Research for the superparamagnetism of yttrium ferrite ferrofluids[J].Chemistry,2000,63(4):30-34.(in Chinese)
[12] Bica D,Vekas L,Rasa M.Preparation and magnetic properties of concentrated magnetic fluids on alcohol and water carrier liquids[J].Journal of Magnetism and Magnetic Materials,2002,252(1):10-12.
[13] O’Connor C J,Seip C T,Carpenter E E,et al.Synthesis and reactivity of nanophase ferrites in reverse micellar solutions[J].Nanostructured Materials,1999,12(1):65-70.
[14] Wagener M,Guünther B.Sputtering on liquids —— a versatile process for the production of magnetic suspensions[J].Journal of Magnetism and Magnetic Materials,1999,201(1):41-44.
[15] Shafi K V P M,Wizel S,Prozorov T,et al.The use of ultrasound radiation for the preparation of magnetic fluids[J].Thin Solid Films,1998,318(1):38-41.
[16] 张茂润,陶昭才.硅油基钴/Fe3O4复合磁流体的研制及磁性能[J].四川大学学报(工程科学版),2004,36(4):31-35.
  Zhang Maorun,Tao Zhaocai.Preparation and magnetic performance of silicon-oil-based Co/Fe3O4 ferrum magnetic fluid[J].Journal of Sichuan University(Engineering Science Edition),2004,36(4):31-35.(in Chinese)
[17] 李广学,张茂润.Co-Fe3O4 磁性流体磁性能的研究[J].合肥工业大学学报(自然科学版),2001,24(2):248-250.
  Li Guangxue,Zhang Maorun.Research on the magnetic performance of Co-Fe3O4 magnetic fluid[J].Journal of Hefei University of Technology(Natural Science),2001,24(2):248-250.(in Chinese)
[18] 徐华成,李广学,张茂润.影响Fe3O4磁性流体的磁性能因素[J].合肥工业大学学报(自然科学版),2002,25(2):301-303.
  Xu Huacheng,Li Guangxue,Zhang Maorun.On the factors influencing the magnetic performance of Fe3O4 magnetic fluid[J].Journal of Hefei University of Technology(Natural Science),2002,25(2):301-303.(in Chinese)

备注/Memo

备注/Memo:
基金项目: 安徽省教育厅重点科研资助项目(2001kj235zd).
作者简介: 李广学(1966—), 男, 博士生, 副教授, gxli@aust.edu.cn.
更新日期/Last Update: 2005-07-20