Document Type
Article
Publication Date
2012
Journal or Book Title
Composites Science and Technology
Volume
72
Issue
14
First Page
1692
Last Page
1696
DOI
10.1016/j.compscitech.2012.06.023
Abstract
Polymer-matrix composites (PMCs) with dispersed Si nanoparticles have been fabricated and investigated for their dielectric and mechanical properties for the first time. It is found that Si nanofillers significantly enhance the dielectric constant of the nanocomposites while preserve the low loss tangent of the Bisphenol E cyanate ester (BECy) matrix. Meanwhile, incorporation of Si nanoparticles effectively stiffens the polymer, as manifested by the large increase in the storage modulus. Furthermore, the AC conductivity of the composite is observed to decrease under compressive mechanical stresses due to the piezoresistive effect of Si. Therefore, these novel Si/BECy nanocomposites simultaneously display mechanical load-carrying, electric energy-storing and stress-sensing capabilities, very promising for multifunctional devices such as structural capacitors.
Copyright Owner
Sun, et al.
Copyright Date
2012
Language
en
File Format
application/pdf
Recommended Citation
Sun, Weixing; De Leon, Elise; Ma, Cheng; Tan, Xiaoli; and Kessler, Michael R., "Novel Si/cyanate ester nanocomposites with multifunctional properties" (2012). Materials Science and Engineering Publications. 189.
https://lib.dr.iastate.edu/mse_pubs/189
Comments
NOTICE: this is the author’s version of a work that was accepted for publication in Composites Science and Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composites Science and Technology, [72, (2012] DOI: 10.1016/j.compscitech.2012.06.023.