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Homogeneous Electrorheological Liquid Based on Side-Chain Liquid Crystal Polysiloxanes Containing p-Methoxyl Phenyl Benzolate and Its Smart Damper
Ma Huiru,Guan Jianguo*,Qu Weilian,Zhang Qingjie,Yuan Runzhang
Author NameAffiliationE-mail
Ma Huiru State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070  
Guan Jianguo* State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070 guanjg@mail.whut.edu.cn  
Qu Weilian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070  
Zhang Qingjie 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:
Based on the synthesis and characterization of side-chain liquid crystal polysiloxanes containing p-methoxyl phenyl benzolate, the homogeneous electrorheological (ER) liquid and its smart damper were fabricated. The properties of the homogeneous ER liquid and its smart damper were tested. The results indicated that the homogeneous ER liquid with significant ER effect at room temperature is obtained by mixing the side-chain liquid crystal polysiloxanes containing p-methoxyl phenyl benzolate and silicone oil. Its shear stress reached 1550Pa at electrical field strength (E) of 2.2 kV/mm and shear rate of 300 s-1. The damping forces of the smart damper based on the homogeneous ER liquid enhanced if E and oscillation frequency increased. Consequently, an effective way for semi-active control using the smart damper based on the homogeneous ER liquid was put forward to reduce the seismic responses of the structures.
Key words:  Polysiloxane, Liquid crystal polymer, Homogeneous electrorheological liquid, Smart damper
FundProject:
用含苯甲酸甲氧基苯酯的聚硅氧烷组成均相电流变液及其智能阻尼特性的研究
马会茹,官建国*,瞿伟廉,张清杰,袁润章
摘要:
在合成并表征含苯甲酸甲氧基苯酯的侧链液晶聚硅氧烷高分子的基础上,制备了均相电流变(ER)液及其智能阻尼器.测试了ER液及其智能阻尼器在室温下的性能.结果表明,用含苯甲酸甲氧基苯酯的侧链液晶聚硅氧烷能组成在室温下表现出较强ER活性的均相ER液,它在外加电场E=2.2 kV/mm,剪切速率为300 s-1时,剪切应力达到1550 Pa;增加E和振动频率,均相ER液智能阻尼器的阻尼力均增加,阻尼效果提高.
关键词:  聚硅氧烷  液晶高分子  均相电流变液  智能阻尼器
DOI:10.1088/1674-0068/18/3/444-447
分类号: