Dielectric constants of PDMS nanocomposites using conducting polymer nanowires

Author

Du, Ping ; Lin, Xi ; Zhang, Xin

Author_Institution

Dept. of Mech. Eng., Boston Univ., Boston, MA, USA

fYear

2011

fDate

5-9 June 2011

Firstpage

645

Lastpage

648

Abstract

Polydimethylsiloxane (PDMS) is one of the most used materials in bio-applications. However, previous works were mainly focused on mechanical aspects. In this paper we presented a practical and efficient approach to enhance the electrical properties of PDMS by using conducting polymer nanowires (CPNWs). The nanowires were synthesized using the template method and added in PDMS to form nanocomposites. The dielectric constants of the composites were characterized by impedance measurements. The dielectric relaxation behavior and the volume fraction of CPNWs were investigated. Based on the percolation theory a much lower threshold (5.3 vol.%) was achieved.

Keywords

conducting polymers; dielectric relaxation; electric impedance measurement; nanocomposites; nanowires; percolation; permittivity; CPNW; PDMS electrical property; PDMS nanocomposite; conducting polymer nanowire; dielectric constant; dielectric relaxation behavior; impedance measurement; percolation theory; polydimethylsiloxane nanocomposite; template method; volume fraction; Dielectric constant; Impedance; Mathematical model; Nanocomposites; Nanowires; Polymers; Conducting polymer; Dielectric constant; Nanocomposite; Nanowire; PDMS;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International

Conference_Location

Beijing

ISSN

Pending

Print_ISBN

978-1-4577-0157-3

Type

conf

DOI

10.1109/TRANSDUCERS.2011.5969789

Filename

5969789