不同HLB值的表面活性剂对磁流变液沉降稳定性能的影响  

Effect of surfactants with different HLB values on settling stability of magnetorheological fluid

作　　者：熊皓 罗一平 王维成 王磊 姜彦文 XIONG Hao;LUO Yiping;WANG Weicheng;WANG Lei;JIANG Yanwen(School of Mechanical and Automotive Engineering, Shanghai University of Engineering and Technology, Shanghai 201620, China)

机构地区：[1]上海工程技术大学机械与汽车工程学院

出　　处：《功能材料》2019年第12期12126-12131,12136,共7页Journal of Functional Materials

基　　金：上海市地方能力建设资助项目(19030501100)

摘　　要：主要研究表面活性剂对磁流变液的的沉降稳定性能的影响。通过实验分析了不同种类和质量分数表面活性剂条件下的磁流变液样品性能上的差异,探究表面活性剂HLB值对磁流变液抗沉降稳定性的影响,发现随着HLB值的减小,磁流变液的沉降稳定性有所提高。此外,还引入了接触角概念,分析在磁流变液的制备过程中测量分散颗粒对基液的润湿性的影响,探究基于磁流变液的抗沉降稳定性的新的评价方法。In this paper, the effect of surfactant on the settling stability of magnetorheological fluid was mainly studied. The differences in the properties of magneto-rheological fluid samples with different kinds and mass fraction of surfactants were analyzed through experiments to explore the influence of surfactant HLB value on the anti-settling stability of magneto-rheological fluid. It was found that the settling stability of magneto-rheological fluid was improved with the decrease of HLB value. In addition, the concept of contact angle was also introduced to analyze the influence of measuring dispersed particles on wettability of base liquid in the preparation process of magnetorheological fluid, and to explore a new evaluation method based on magnetorheological fluid's anti-settling stability.

关 键 词：沉降稳定性 表面活性剂 磁流变液 接触角 

分 类 号：O373[理学—流体力学]