Electrorheological and magnetorheological response of polypyrrole/magnetite nanocomposite particles

Title
Electrorheological and magnetorheological response of polypyrrole/magnetite nanocomposite particles
Authors
최형진
Keywords
Electrorheological fluid . Magnetorheological fluid . Polypyrrole . Magnetite
Issue Date
2013
Publisher
COLLOID AND POLYMER SCIENCE
Series/Report no.
COLLOID AND POLYMER SCIENCE; vol.291 startpage 1781 endpage 1786
Abstract
Magnetic nanoparticles of magnetite (Fe3O4) were synthesized within a conducting polypyrrole (PPY) matrix using a facile method, and employed as both electrorheological (ER) and magnetorheological (MR) materials to provide a well dispersed suspension of either ER orMR fluids. The PPY to Fe3O4 weight ratio was adjusted to 5 % to avoid possible deterioration of the magnetic properties of the Fe3O4 particles. Transmission electron microscopy and X-ray diffraction provided information on the structure and particle size of the PPY/Fe3O4. Both ER and MR performance of pure Fe3O4 and PPY/Fe3O4 nanocomposites were examined through rotational and oscillatory tests using a rotational rheometer under an applied electric and magnetic field, respectively, demonstrating typical ER and MR characteristics.
URI
http://dspace.inha.ac.kr/handle/10505/31877
ISSN
0303-402X
Appears in Collections:
College of Engineering(공과대학) > Polymer Science and Engineering (고분자공학) > Journal Papers, Reports(고분자공학 논문, 보고서)
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