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Properties of Magnetorheological Suspension for Filled Clusters of Cobalt-Phthalocyanine/Iron Nanoparticles
Gong Rongzhou,Guan Jianguo,Yuan Runzhang
Author NameAffiliationE-mail
Gong Rongzhou State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070 rzhgong@public.wh.hb.cn  
Guan Jianguo State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070  
Yuan Runzhang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070  
Abstract:
Magnetorheological suspension(MRS)consists of methylic silicone oil and filled clusters ofcobalt-phthalocyanine/Iron(CoPc/Fe)nanoparticles,and the filled clusters have been obtained using method of composite in situ.Exhibited dynamic shear stress of the MRS induced by external magnetic field is in direct-ratio relation with strength of external magnetic field and concentration of the filled clusters in the MRS.The relation of shear stress with shear rate shows that the filled clusters of CoPc/Fe nanoparticles have arranged in chain by external magnetic field in the MRS.And it is little that the shear stress is affected by change of temperature.Response of the MRS is superior reversibility of changes in viscosity induced and the response time is faster than 0.1s by external magnetic field.
Key words:  Magnetorheological suspension,Properties,Response time,Filled clusters of cobalt-phthalocyanine/Iron nanoparticles
FundProject:国家自然科学基金项目(No.29674021和29904005)和武汉工业大学材料复合新技术国家重点实验室开放基金资助
酞菁钴/铁纳米填充母粒组成的磁流变液性能
龚荣洲,官建国,袁润章
摘要:
采用有机/无机原位(insitu)复合方法制备得出酞菁钴/铁纳米填充母粒,与甲基硅油组成磁流变液(MRS)。MRS的附加动态剪切应力(Δτ)与分散介质浓度、外加磁场强度呈正比例关系;剪切速率对Δτ的影响表明磁致流变为链状结构特征;Δτ对温度不敏感;MRS对外加磁场有可逆的开/关变化特征,无记忆效应,磁流变响应时间小于0.1s。
关键词:  磁流变液  性能  响应时间  酞菁钴/铁纳米填充母粒
DOI:10.1088/1674-0068/13/4/508-512
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