Viscosity properties and magnetoviscous effects of Ni0.5Zn0.5Fe2O4 vegetable oil-based magnetic fluid

被引：0

作者：

Xie Z. ^{[1
]}

Wu Z. ^{[1
]}

Zhu Q. ^{[1
]}

Jiang J. ^{[1
]}

Liang T. ^{[1
]}

Liu Z. ^{[1
]}

机构：

[1] College of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Yunnan, Kunming

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2023年 / 42卷 / 07期

关键词：

dispersion; magnetic fluid; magnetoviscous effects; nanoparticles; sedimentation stability; vegetable oil; viscosity;

D O I：

10.16085/j.issn.1000-6613.2022-1549

中图分类号：

学科分类号：

摘要：

The mineral oil-based magnetic fluid has the problems of environmental pollution and difficulty in biodegradation. Vegetable oil has the advantages of being green and excellent biodegradability. In this paper, Ni0.5Zn0.5Fe2O4 magnetic fluid was prepared by two-step method using vegetable oil as base liquid. The sedimentation stability was studied by orthogonal experiment, and the viscosity properties and magnetoviscous effects were studied by single variable method. Experimental results showed that the sedimentation stability was better when acetone was used as dispersant with a mass fraction of 11% and Ni0.5Zn0.5Fe2O4mass fraction of 2.4%. Under the condition of no magnetic field or magnetic field, the viscosity decreased with increasing temperature. The viscosity increased and then decreased with increasing mass fraction of dispersant and Ni0.5Zn0.5Fe2O4, and the inflection point appeared when the mass fraction of dispersant was 11% and the mass fraction of Ni0.5Zn0.5Fe2O4 was 2.4%. The viscosity increased with increasing magnetic field intensity, showing the characteristics of non-Newtonian fluids. Vegetable oil as the base liquid of magnetic fluids was an ideal choice. Vegetable oil-based magnetic fluid had better sedimentation stability, having unique advantages over mineral oil-based magnetic fluid. In the future, vegetable oil-based magnetic fluid can become a new environmentally friendly working medium. © 2023 Chemical Industry Press. All rights reserved.

引用

页码：3623 / 3633

页数：10

共 42 条

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