low boiling point alcohol;
acetone;
magnetic fluid;
HLB;
liquid crystals;
D O I:
10.1016/S0304-8853(99)00098-0
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Ultra-fine magnetic particles are difficult to be dispersed in lour bailing point solvents such as alcohol (C-1-C-4) and acetone. In this paper, we report the preparation methods of several alcohol and acetone-based magnetic fluids. The stability of magnetic fluid depended on the HLB (hydrophile-lipophile balance) of the solvent and alkyl chain lengths of organic layers. The fluid was most stable only when the HLB value of surfactant and the solvents are similar. (C) 1999 Published by Elsevier Science B.V. All rights reserved.