Electrorheological Properties of Suspensions of Polypyrrole Ribbon Particles in Silicone Oil

被引：3
|
作者：
Almajdalawi, Shawqi [1 ]
Pavlinek, Vladimir [1 ]
Cheng, Qilin [1 ]
Saha, Petr [1 ]
Mrlik, Miroslav [1 ]
Stenicka, Martin [1 ]
机构：
[1] Tomas Bata Univ Zlin, Ctr Polymer Syst, Ctr Polymer, Zlin 76001, Czech Republic
来源：
NOVEL TRENDS IN RHEOLOGY IV | 2011年 / 1375卷
关键词：
Polypyrrole ribbon particles; Electrorheology; Conductivity; NANOCOMPOSITE; BEHAVIOR; SIZE;
D O I：
10.1063/1.3604488
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A new polypyrrole (PPy) ribbon particles structure has been synthesized by solution chemistry method (oxidative polymerization) in the presence of surfactant cetyltrimethylammonium bromide (CTAB) with oxidizing agent ammonium persulfate (APS). The resulted polymer was treated with ammonium hydroxide (NH4OH) several times to obtain different sample conductivity. PPy morphology was characterized by SEM. The suspensions were prepared by dispersing PPy with different conductivities in silicone oil. The electrorheological effect (ER) for the suspensions was examined under various electric fields using a rotational rheometer. It was found that suspension of only 3 wt. % of PPy ribbon particles showed large ER effect providing yield stress of 256 Pa at 3 kV.mm(-1).
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页数：9
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