ITEM METADATA RECORD
Title: Heating shape memory polymers in alternative ways: microwave and direct electrical heating
Authors: Fabré, Maarten ×
Binst, Johan
Bocsan, Iulia
De Smet, Carl
Ivens, Jan #
Issue Date: 24-Jun-2012
Publisher: University of Padova
Series Title: 15th European Conference on Composite Materials pages:1-8
Conference: European Conference on Composite Materials edition:15 location:Venice, Italy date:24-28 June 2012
Article number: 777
Abstract: For the moment, shape memory polymers or SMPs are mainly used in aerospace and medical
application due to their limited mechanical properties, and small recovery speed and
recovery stress. The transformation and recovery speed is significantly affected by the heating
rate. One way to achieve a faster heating rate is by adding fillers; the SMP can be heated by
direct electrical resistivity, microwaves or induction. Adding carbon nanotubes or CNTs and
carbon black improves the heating rate when heating the SMPs by microwaves, but also
introduced the occurrence of hot spots, limiting the usability of this method of heating. Adding
up to 1.13% CNTs improved the electrical conductivity enough to allow direct electrical
heating, greatly increasing the heating rate. When applying a fixed voltage to the same
sample, both the evolution of the current and temperature differed during the first test from
the following test runs, indicating alignment of the CNTs, resulting in a lower resistivity.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Materials Technology TC @ Thomas More Mechelen
Technologiecluster Materialentechnologie
Department of Architecture - LUCA
Metallurgy and Materials Engineering - miscellaneous
Structural Composites and Alloys, Integrity and Nondestructive Testing
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
pub06262.pdfMain article Published 531KbAdobe PDFView/Open

 


All items in Lirias are protected by copyright, with all rights reserved.