Solidification Thickness Dependent Electrostriction of Polyurethane Films

Masae Kanda; Kaori Yuse; Benoit Guiffard; Laurent Lebrun; Yoshitake Nishi; Daniel Guyomar

doi:10.2320/matertrans.MAW201208

This article has now been updated. Please use the final version.

Solidification Thickness Dependent Electrostriction of Polyurethane Films

Masae Kanda, Kaori Yuse, Benoit Guiffard, Laurent Lebrun, Yoshitake Nishi, Daniel Guyomar

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Keywords: electrostriction, electro active, crystalline periodicity

JOURNAL FREE ACCESS Advance online publication

Article ID: MAW201208

DOI https://doi.org/10.2320/matertrans.MAW201208

The final version of this article is now available: Vol. 53 (2012), No. 10

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Abstract

To obtain large electrostriction (S_max) at low electric filed (E_max), a dependence of the solidification thickness (L) on S_max was investigated for polyurethane films. Thinning the films remarkably enhanced S_max at high E_max at 20 MV/m, whereas thick films apparently exhibited higher S_max at low E_max of less than 3 MV/m. The L dependent S_max from 5.01% for 140 µm thickness to 30.99% for 28 µm thickness exhibited linear relationship of pure polyurethane. Considering crystalline volume fraction and crystalline periodicity, the L dependent S_max was explained.

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