钛酸酯偶联剂含量对磁流变液性能的影响
Effect of Titanate Coupling Agent Content on Performance of Magnetorheological Fluid
摘 要
分别以不同含量的钛酸酯偶联剂为稳定剂, 以羰基铁粉为磁性颗粒制备了硅油基磁流变液, 比较了不同体积分数钛酸酯偶联剂对磁流变液沉降稳定性和剪切性能的影响。结果表明: 磁流变液的沉降稳定性随钛酸酯偶联剂含量增多而下降, 添加2%时具有最好的沉降稳定性; 添加4%钛酸酯偶联剂时, 在400 mT磁场下剪切屈服强度可达20 kPa; 并得到了羰基铁粉体积分数为35%时磁流变液的剪切屈服强度、磁场强度及钛酸酯含量的定量关系式。
钛酸酯偶联剂
沉降率
剪切屈服强度
magnetorheological fluid
titanate coupling agent
sedimentation
shear
Abstract
A novel silicon-oil-based magnetorheological fluid (MRF) was prepared using titanate coupling agent with different contents as stabilizer and carboxyl iron powder as the magnetic particles. The effects of different volume fractions titanate coupling agents on sedimentation stability and shear properties of the MRF were compared. The results show that with the increase of the titanate coupling agent content the sedimentation stability of the MRF decreased. The MRF added 2vol% titanate coupling agent had the best sedimentation stability, while added 4vol% titanate coupling agent had a shear strength of 20 kPa when the magnetic field intensity was 400 mT. The quantitative relationship between shear strength and magnetic field intensity as well as the content of titanate was obtained when the volume fraction of carboxyl iron powder in MRF was 35vol%.
中图分类号 O373
所属栏目
基金项目 国家自然科学基金资助项目(50775043); 广东省自然科学基金资助项目(8151009001000005)
收稿日期 2009/12/19
修改稿日期 2010/9/13
网络出版日期
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备注唐泳波(1987-), 男, 湖南长沙人, 硕士研究生。
引用该论文: TANG Yong-bo,MA Ping,GONG Zheng. Effect of Titanate Coupling Agent Content on Performance of Magnetorheological Fluid[J]. Materials for mechancial engineering, 2011, 35(1): 62～64
唐泳波,马平,龚政. 钛酸酯偶联剂含量对磁流变液性能的影响[J]. 机械工程材料, 2011, 35(1): 62～64
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【2】CARLSON J D, JOHN C.Controllable brake: US, 5842547[P].1998-11-01.
【3】KORMANN C, LAUN H M, RICHER H J. MR fluid with nano-sized magnetic particles[J].International Journal of Mo-dern Physice B, 1996, 10: 3167-3172.
【4】KORDONSKY W I. Additional magnetic dispersed phase improves the MR-fluid properties[J].Intelligent Material Systems and Structures, 1996, 7(5): 522-525.
【5】BOSSIS G, KHUZIR P, lACIS S. Yield behavior of magnetorheological suspensions[J].Magnetism and Magnetic Materials, 2003, 258/259: 456-458.
【6】常建, 杨运民, 彭向和, 等.一种磁流变液流变特性测试装置的研究[J].仪器仪表学报, 2001, 22(4): 354-368.
【7】张先舟, 张培强.基于磁流变液相变技术的柔性夹具[J].实验力学, 2003, 18(2): 185-192.
【8】金宝炎, 包小倩, 张茂才, 等.表面改性对磁流变液稳定性和磁流变性能的影响[J].磁性材料与器材, 2007, 38(4): 51-54.
【9】PLUEDDEMANN E P. Silane coupling agents[M].New York: Plenum Press, 1991.
【10】郭云亮, 张涑戎, 李立平.偶联剂的种类和特点及应用[J].橡胶工程, 2003, 50(11): 692-696.
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