| ELECTRORHEOLOGICAL PROPERTIES OF POLYANILINE/PUMICE COMPOSITE SUSPENSIONS |
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| 作者姓名： | Mustafa Yavuz |
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| 作者单位： | Department of Chemistry, Faculty of Arts and Science, Siileyman Demirel University, 32260 lsparta, Turkey |
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| 基金项目： | This work was financially supported by the TUBITAK （Turkish Scientific and Technical Research Foundation） and Süleyman Demirel University （Nos. TBAG-AY-344, SDU BAP 03-m-714）. |
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| 摘 要： | Electrorheological （ER） properties of polyaniline （PAni）, pumice and polyaniline/pumice composites （PAPC） were investigated. Polyaniline and PAni/pumice composite were prepared by oxidative polymerization. PAni/pumice particlesbased ER suspensions were prepared in silicone oil （SO）, and their ER behavior was investigated as a function of shear rate, electric field strength, concentration and temperature. Sedimentation stabilities of suspensions were determined. It has been found that ER activity of all the suspensions increases with increasing electric field strength, concentration and decreasing shear rate. It has shown that the suspensions have a typical shear thinning non-Newtonian viscoelastic behavior. Yield stress of composite suspensions increased linearly with increasing applied electric field strength and with concentrations of the particles. The effect of high temperature on ER activity of purrfice/silicone oil systems was also investigated.
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| 关 键 词： | 电流变学 屈服应力 浮石 聚苯胺 复合物 |
| 收稿时间： | 2006-07-14 |
| 修稿时间： | 2006-07-14 |
ELECTRORHEOLOGICAL PROPERTIES OF POLYANILINE/PUMICE COMPOSITE SUSPENSIONS |
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| Mustafa Yavuz.ELECTRORHEOLOGICAL PROPERTIES OF POLYANILINE/PUMICE COMPOSITE SUSPENSIONS[J].Chinese Journal of Polymer Science,2007,0(4):347-355. |
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| Authors: | Mustafa Yavuz |
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| Institution: | Department of Chemistry, Faculty of Arts and Science, Süleyman Demirel University, 32260 Isparta, Turkey |
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| Abstract: | Electrorheological (ER) properties of polyaniline (Pani), pumice and polyaniline/pumice composites (PAPC) were investigated. Polyaniline and Pani/pumice composite were prepared by oxidative polymerization. Pani/pumice particlesbased ER suspensions were prepared in silicone oil (SO), and their ER behavior was investigated as a function of shear rate, electric field strength, concentration and temperature. Sedimentation stabilities of suspensions were determined. It has been found that ER activity of all the suspensions increases with increasing electric field strength, concentration and decreasing shear rate. It has shown that the suspensions have a typical shear thinning non-Newtonian viscoelastic behavior. Yield stress of composite suspensions increased linearly with increasing applied electric field strength and with concentrations of the particles. The effect of high temperature on ER activity of pumice/silicone oil systems was also investigated. |
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| Keywords: | Electrorheology Yield stress Pumice Composite Suspension |
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