Interfacial Synthesis of SiO2 Doped by Polyaniline and its Electrorheological Behavior

Qing Ming Jia; Shao Yun Shan; Li Hong Jiang; Ya Ming Wang

doi:10.4028/www.scientific.net/AMR.179-180.249

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 179-180Interfacial Synthesis of SiO2 Doped by Polyaniline...

Interfacial Synthesis of SiO₂ Doped by Polyaniline and its Electrorheological Behavior

Abstract:

SiO2 doped by polyaniline for application in electrorheological (ER) ﬂuid was prepared by using a simple one-pot interfacial synthesis method. Scanning electron microscopy (SEM) image shows that the morphologies of SiO2 may be changed from spherical to fibroid structure by changing the molar ratio of tetraethyl orthosilicate(TEOS) and aniline. X-ray diffraction (XRD) proves that polyaniline does not change the crystallinity of SiO2. The ER behaviors of SiO2 doped by polyaniline in silicone oil are investigated with different doping degrees under different shear rate, and the results show that properly doping polyaniline improves electrorheological behavior of SiO2.