Electrorheological performance of SiO2particle materials of Ce-doping and adsorbed chitosan

被引：0
|
作者：
Li, Shuxin [1 ,2 ]
Ma, Shuzhen [2 ]
Xu, Mingyuan [2 ]
Shang, Yanli [1 ]
Li, Junran [1 ]
Zhang, Shaohua [3 ]
Zhang, Yuanjing [4 ]
Gao Song [1 ]
机构：
[1] Lab. of Rare Earth Mat. Chem., Coll. of Chem. and Molecular Eng., Peking Univ., Beijing 100871, China
[2] Dept. of Chem., Baoding Teacher's Coll., Baoding 071051, China
[3] Sch. of Transmission Eng., Beijing Inst. of Technol., Beijing 100081, China
[4] Dept. of Chem., Shijiazhuang Coll., Shijiazhuang 050035, China
来源：
Journal of Rare Earths | 2004年 / 22卷 / SUPPL. 2期
关键词：
Dielectric properties - Electric field effects - Grain size and shape - Pore size - Suspensions (fluids);
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学科分类号：
摘要：
The electrorheological (ER) materials of pure SiO2(Sample 1), Ce-doping SiO2(Ce-SiO2, Sample 2) and Ce-SiO2adsorbed chitosan (Ce-SiO2-chitosan, Sample 3) were prepared using Na2SiO3, Ce(NO3)3and chitosan as starting materials. Their ER properties were studied. The results show that Ce-doping can enhance the ER activity of SiO2, and the ER activity of SiO2can be further improved by adsorbing chitosan on the surfaces of Ce-SiO2particles. The ER activity of a particle material is correlated with the average grain size, surface area, pore volume and average pore size of the material.
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页码：46 / 50
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