【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。更多还原

【Abstract】 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.更多还原