The Fabrication and Viscosity Analysis of Magneteroheogical Fluid

• Main Authors: Hung-Jen Chu, 朱宏仁
• Other Authors: 鍾清枝
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/gr9yu5

碩士 === 國立臺北科技大學 === 製造科技研究所 === 97 === Magnetorheological fluids (MRF) are a kind of novel smart material , which are the suspension composed of based fluids, magnetic micro-particles and surfactants; it has significant magnetorheological effect in additional magnetic field. It has widely applied in mechanics, chemical engineering, and opto-eletronics industry now. In this study, the viscosity of silicone oil is the # 1000 for the main solution, in accordance with the different ratio of oleic acid and lauryl glucoside were made of magnetic fluid . MRF obtained under different environmental conditions, such as magnetic field strength and temperature changes, and its viscosity as well as static observation of the experiment, according to the results to confer the effect of MRF and relationships, and obvious of the MRF on the characteristics of a variety of factors, According to the experimental results confer that with lauryl glucoside more better than oleic acid with good stability of the interface agent and dispersing agent is also added to help the effective magnetic particles dispersed in the liquid contained in the capacity of MRF to enhance the effect of the magnetization, but not all the more , magnetic particle content greater than 20% of the added surfactants and dispersing agent interface requires at least 3 % more than in order to have better results. Experiment also was advised that when the temperature rises to 70 ℃ after, it will disrupts the flow of magnetic fluid (working), and there is the phenomenon of disappearing, so the machine should avoid the use of the overall temperature has increased.