Development of an Apparatus for the Introduction of Biaxial Strain in Thin Polymer Films

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Authors
  1. MacKay, K.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN);MARTEC Ltd, Halifax NS (CAN)
Abstract
The Tailored Polymers Group DRDC Atlantic is involved in the development of dielectric polymer actuators. As part of this research effort, the effect of orientation on the polymer properties will be investigated. This requires the design and fabrication of an apparatus to introduce biaxial strains into thin polymer films. This report describes the work by Martec Limited to design and build such an apparatus. The design allows for strains between 100% and 500% to be applied with the amount of strain controlled by the initial gage length of the specimens. The apparatus allows the strain in the polymer to be maintained after the applied load has been removed. Initial testing showed that the device is capable of introducing and maintaining biaxial strain in two polymer dielectric materials. The maximum strain produced during initial testing was 108.8%, however this was limited by the properties of the supplied materials.

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Keywords
biaxial strain;apparatus;polymer films;orientation;Dielectric actuators;Material properties
Report Number
DRDC-ATLANTIC-CR-2004-143;MARTEC-TR-04-39 — Contractor Report
Date of publication
01 Jul 2004
Number of Pages
32
DSTKIM No
CA025220
CANDIS No
522805
Format(s):
CD ROM

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