Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 69, Issue 7-8, Pages 1082-1087Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2009.01.031
Keywords
Functional composites; Curing; Differential scanning calorimetry (DSC); Dynamic mechanical thermal analysis (DMTA); Thermally mendable polymer
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Funding
- Air Force Office of Scientific Research through a MURI [9550-05-1-0346]
- NSF [DGE-0114443]
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The cure kinetics of a thermally mendable polymer based on Diels-Alder (DA) and retro-Diels-Alder (rDA) reactions, mendomer 401, was investigated using dynamic differential scanning calorimetry (DSC). The resulting behavior was modeled using a conventional cure kinetic model for thermosetting polymers. A composite panel with two layers of carbon fabric and mendomer 401 was fabricated following the cure cycle suggested by the cure kinetics model. Micro-indentation tests were performed to investigate mechanical properties and dynamic mechanical thermal analysis (DMTA) was conducted to study thermal behavior and to find the trigger temperature for healing. Self-healing behavior of the carbon fiber/mendomer composite was demonstrated using electrical resistive heating over the glass transition temperature. (C) 2009 Elsevier Ltd. All rights reserved.
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