Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7213245 | Composites Part B: Engineering | 2015 | 9 Pages |
Abstract
Polydimethylsiloxane-α,Ï-diols were used as matrix for barium titanate particles to obtain electroactive elastomeric composites. Filler particles were previously treated with a surfactant to improve the compatibility with and dispersibility in the matrix. The composites, processed as films and crosslinked with methyltriacetoxysilane, were investigated from point of view of the morphology, moisture sorption and thermal properties, as well as mechanical and dielectric behavior. Maximum strain value of 850% at 0.32 MPa and dielectric permittivity of 4.41 at 10 Hz and 20 °C were obtained. Two parameters of interest for potential future application of such materials in electromechanical devices (actuation or harvesting), electromechanical sensitivity and harvesting energy capacity, were estimated and discussed in correlation with the molecular mass of the polymeric matrix and the content of the active filler.
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Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Adrian Bele, Maria Cazacu, George Stiubianu, Stelian Vlad, Mircea Ignat,