A Novel Preparation Process for Magnetorheological Fluid with High Sedimentation Stability
A Novel Preparation Process for Magnetorheological Fluid with High Sedimentation Stability
复制标题
高沉降稳定性磁流变液制备新工艺
DOI：
10.1080/10426914.2016.1198032
复制
发表时间：
2016
影响因子：
4.8
通讯作者：
Wang Jian
中科院分区：
文献类型：
--
作者：
Tian Zuzhi;Chen Fei;Wu Xiangfan;Wang Jian
报道了以硅烷偶联剂和膨润土为添加剂，通过一系列实验确定了合适的添加量，制备了高性能磁流变液。我们还采用了一种新的制备工艺，通过正交试验设计对其进行了优化。确定了工艺参数对磁流变液沉降稳定性的影响。通过测量沉降率、表观粘度和屈服应力来评价优化工艺制备的磁流变液的性能。结果表明，当硅烷偶联剂和膨润土质量分数分别为2.88%和3.60%时，磁流变液的沉降稳定性得到提高。此外，第二次搅拌对沉淀稳定性的影响比第一次搅拌更重要。确定了制备高性能磁流变液的最佳工艺参数为：第一、二次搅拌温度20℃，第一次搅拌时间5min，第二次搅拌时间5h，第一、二次搅拌转速2000rpm。
We report the preparation of a high-performance magnetorheological (MR) fluid by using silane coupling agent and bentonite as additives at appropriate contents determined by a series of experiments. We also adopted a new preparation process that was optimized through an orthogonal experimental design. The effects of process parameters on the sedimentation stability of the MR fluid were determined. Sedimentation ratio, apparent viscosity, and yield stress were measured to evaluate the performance of the MR fluid prepared by the optimized process. Results indicated that the MR fluid exhibited enhanced sedimentation stability when the silane coupling agent and bentonite mass fractions were 2.88% and 3.60%, respectively. Moreover, the effect of the second stirring process on sedimentation stability was found to be more important than the first. The optimal preparation parameters determined for the high-performance MR fluid are as follows: first and second stirring temperature of 20°C, first stirring time of 5 min, second stirring time of 5 h, and first and second stirring rotation speed of 2000 rpm.