Electrorheological Fluids Based on Metallo-Supramolecular Polyelectrolyte-Silicate Composites

被引：21
|
作者：
Schwarz, Guntram [1 ]
Maisch, Stefan [1 ]
Ullrich, Stefan [1 ]
Wagenhoefer, Julian [1 ]
Kurth, Dirk G. [1 ,2 ]
机构：
[1] Univ Wurzburg, D-97070 Wurzburg, Germany
[2] Fraunhofer Inst Silicatforsch ISC, D-97082 Wurzburg, Germany
来源：
ACS APPLIED MATERIALS & INTERFACES | 2013年 / 5卷 / 10期
关键词：
electrorheological fluids; supramolecular chemistry; SBA-15; self-assembly; electrorheology; MESOPOROUS SILICA; SBA-15;
D O I：
10.1021/am401104d
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We present an innovative concept for the design of electrorheological fluids (ERF) based on a dispersed phase of rigid-rod-shaped metallo-supramolecular polyelectrolytes (MEPE) intercalated in mesoporous SBA-15 silica. While applying an electric field to this composite dispersed in silicone oil, rheological measurements reveal a strong increase in the storage modulus, indicating the solidification of the fluid. Besides the strong electrorheological effect and the low current densities, we note that the required amount of MEPE is five times lower than in comparable host-guest ERFs. Composites based on mononuclear complexes do not show a comparable electrorheological effect.
引用
收藏
页码：4031 / 4034
页数：4
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