Facile fabrication of Pickering emulsion polymerized polystyrene/laponite composite nanoparticles and their electrorheology

Title
Facile fabrication of Pickering emulsion polymerized polystyrene/laponite composite nanoparticles and their electrorheology
Authors
최형진
Keywords
Pickering emulsion Polystyrene Laponite Electrorheological fluid
Issue Date
2013
Publisher
JOURNAL OF MATERIALS SCIENCE
Series/Report no.
JOURNAL OF MATERIALS SCIENCE; vol.394 startpage 108 endpage 114
Abstract
Polystyrene (PS)/laponite composite nanoparticles were fabricated using a surfactant-free Pickering emulsion polymerization method, in which emulsions of styrene dispersed in water were stabilized by hydrophilic laponite modified with cetyltrimethylammonium bromide. The PS/laponite nanoparticles, of which their surface was covered compactly by laponite clay platelets, were observed by scanning electron microscopy. Fourier-transform infrared spectroscopy, X-ray diffraction, and thermogravimetric analysis confirmed their chemical composition, crystallographic structure, and thermal properties and weight loss percentage of the laponite located on the surface of the PS particle, respectively. When an external electrical field was applied, the chain-like structure of the laponite coated nano-sized PS particle exhibiting electrorheological characteristics was observed by optical microscopy. The electrorheological performance of the bulk properties was also examined using a rotational rheometer equipped with a high voltage generator.
URI
http://dx.doi.org/10.1016/j.jcis.2012.12.040
http://dspace.inha.ac.kr/handle/10505/31677
ISSN
0021-9797
Appears in Collections:
College of Engineering(공과대학) > Mechanical Engineering(기계공학) > Journal Papers, Reports(기계공학 논문, 보고서)
Files in This Item:
33295.pdfDownload

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse