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Heat-cured silicone rubber incorporating pyrite powders for actuation elements

M. CAZACU1,* , M. IGNAT2, A. VLAD1, M. ALEXANDRU1, G. ZARNESCU2

Affiliation

  1. “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, Iasi-700487, Romania
  2. National Institute for Research and Development in Electrical Engineering ICPE-CA, Splaiul Unirii 313, Bucharest – 030138, Romania

Abstract

Two pyrite powder sorts were physically incorporated in a silicone rubber matrix consisting of high molecular mass (Mv=450000) polydimethylsiloxane, fumed silica and Fe2O3. The obtained composites processed as crosslinked thick (0.60-0.72 mm) films were tested as sensing elements in a nanoactuation device. An interferometric method was used for measurement of the linear displacement of polymeric films by applying a continuum electric field (dc). Displacements of 1600 and 3300 nm were registered under a voltage 475 V..

Keywords

Polydimethylsiloxane-silica composite, Elastomer, Pyrite, Nanoactuation.

Citation

M. CAZACU, M. IGNAT, A. VLAD, M. ALEXANDRU, G. ZARNESCU, Heat-cured silicone rubber incorporating pyrite powders for actuation elements, Optoelectronics and Advanced Materials - Rapid Communications, 4, 3, March 2010, pp.349-351 (2010).

Submitted at: Aug. 18, 2010

Accepted at: March 12, 2010