Coated-PMMA microspheres consisting of poly (methyl methacrylate)(PMMA) core and barium titanate (BaTiO3) shell were synthesized by the modified sol-gel processing and then adopted as an electrorheological (ER) materials. The structure and morphology of coated powders were characterized by SEM and FT-IR; the shear stress of the suspensions of coated-PMMA particles and pure PMMA particles in silicone oil with a 20 vol% were investigated. The results show that the BaTiO3 coated PMMA microspheres based suspension in silicone oil exhibited typical ER behavior and stronger ER effects.
参考文献
| [1] | Tam WY;Yi GH;Wen WJ;Ma HR;Loy MMT;Sheng P .New electrorheological fluid: Theory and experiment[J].Physical review letters,1997(15):2987-2990. |
| [2] | H R Ma;W J Wen;W Y Tam;P Sheng .DielectricElectrorheological Fluids:Theory and Experiment[J].Advances in Physics,2003,52:343-383. |
| [3] | Weijia Wen;Xianxiang Huang;Shihe Yang;Lunquan Lu;Ping Sheng .The giant electrorheological effect in suspensions of nanoparticles[J].Nature materials,2003(11):727-730. |
| [4] | J. Akhavan;K. Slack .Coating of a semi-conducting polymer for use in electrorheological fluids[J].Synthetic Metals,2001(2/3):363-371. |
| [5] | T Hao .The Interfacial Polarization Induced Electrorehological Effect[J].Journal of Colloid and Interface Science,1998,206:240-246. |
| [6] | L C Davis .Polarization Force and Conductivity Effects in ER Fluids[J].Journal of Applied Physics,1992,72:1334-1339. |
| [7] | K Cao;J Yu;B G Li;Z R Pan .Micron-size Uniform Poly(methyl methacrylate) Particles by Dispersion Polymerization in Polar Media[J].Chemical Engineering Journal,2000,78:211-215. |
| [8] | Wei JH;Shi J;Liu ZY;Guan JG;Yuan RZ .The conductivity and temperature dependence of BaTiO3 coated-PAn based electrorheological fluids[J].International Journal of Modern Physics, B. Condensed Matter Physics, Statistical Physics, Applied Physics,2005(7/9):1423-1429. |
| [9] | Z Y Qiu;H Zhang;Y Tang.Influence of Polarization Rate and Dielectric Loss on ER Effects[A].Singapore,World Scientific,1998 |
| [10] | Yucheng Lan;Xiaoyu Xu;Shouqiang Men .The conductivity dependence of the shear stress in electrorheological fluids[J].Applied physics letters,1998(19/24):2908-2910. |
| [11] | P Atten;C Boissy;J N Foulc .The Role of Conduction in Electrorheological Fluids:from Interaction Between Particles to Structuration of Suspensions[J].Journal of Electrostatics,1997,40:5789-5797. |
| [12] | Tang X.;Conrad H.;Wu C. .ON THE CONDUCTIVITY MODEL FOR THE ELECTRORHEOLOGICAL RESPONSE OF DIELECTRIC PARTICLES WITH A CONDUCTING FILM[J].Journal of Applied Physics,1995(6):4183-4188. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%