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The Suitability of 3-D Printed Eutectic Gallium-Indium Alloy as a Heating Element for Thermally Active Hydrogels

Published online by Cambridge University Press:  15 December 2016

Charles Hamilton ,
Gursel Alici ,
Geoff Spinks  and
Marc in het Panhuis
Charles Hamilton*
Affiliation:
Soft Materials Group, School of Chemistry, University of Wollongong, Wollongong 2522 NSW, Australia Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, University of Wollongong, Wollongong 2522, NSW, Australia
Gursel Alici
Affiliation:
Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, University of Wollongong, Wollongong 2522, NSW, Australia School of Mechanical, Materials, and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
Geoff Spinks
Affiliation:
Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, University of Wollongong, Wollongong 2522, NSW, Australia School of Mechanical, Materials, and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
Marc in het Panhuis
Affiliation:
Soft Materials Group, School of Chemistry, University of Wollongong, Wollongong 2522 NSW, Australia Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, University of Wollongong, Wollongong 2522, NSW, Australia
*
*(Email: [email protected])
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Abstract

We report the use of a novel extrusion tip that allows for the omnidirectional printing of eutectic gallium-indium (eGaIn) alloy onto the surface of hydrogel materials into complex 2-dimensional patterns. The use of these printed soft “wires” as an electrothermal heating element for soft robotics purposes was explored. Heating of the eGaIn structures encapsulated in an alginate/acrylamide ionic-covalent entanglement hydrogel was measured by a thermal imaging camera. It was determined that eGaIn is a suitable material for use in future soft robotics applications as an electrothermal heating element to actuate thermally responsive N-isoproylacrylamide hydrogels.

Keywords

metallic conductorextrusionactuator
Type
Articles
Information
MRS Advances , Volume 2 , Issue 6: Biomaterials and Soft Materials , 2017 , pp. 335 - 340
Copyright
Copyright © Materials Research Society 2016 

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References

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