Nano-SiO<,2> doped with rare earth carboxylate grafting continuous component of functional poly- silicone liquid, a kind of subsidence high- resistance. Electrorheological fluid (ERF) was synthesized. And its viscoelastic properties were investigated experimentally. The special polarization effect of rare earth in the ERF was also discussed. The forced oscillating behavior was obtained using a rheometer. The variation of the shear modulus of ERF subjected to various stress amplitude and frequency were investigated. The complex shear modulus and storage modulus of ERF were also given at different electric field intensities. Meanwhile, the creep and recovery characteristics of ERF were also measured. The equilibrium compliance J<,c> and the steady state recoverable compliance J<,R> were investigated as a function of electric field strength and ratio of reactant, and the effect of ERFs structure was analyzed. With increasing in electric field strength at fixed ratio of reactant, the plastic response diminishes, and the elastic behavior rose.
Dai Shaojun(代少俊) Zhang Ming(张明) Pan Shenglin(潘生林) Xiao Chunyan(肖春燕) Yan Changhao(严长浩) Gao Po(高坡) Inoue Shinichi(井上真一) Qiu Guanming(邱关明)
College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, Chin College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, Chin College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002,China Department