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Sacrificial component fabrication for optimised production of micro-vascular polymer composite

Dalton, B, Dixon, D, McIlhagger, AT and Archer, E (2015) Sacrificial component fabrication for optimised production of micro-vascular polymer composite. IOP Conference Series Materials Science and Engineering, 74(1) . [Journal article]

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DOI: 10.1088/1757-899X/74/1/012005

Abstract

Smart functional materials are a viable future goal for advanced applications in aerospace, space and medical applications. In this work micro-vascular polymer composite systems have been developed using sacrificial fibres produced from catalyst loaded Poly(lactic acid). The sacrificial fibres have been produced via a published technique which treated PLA in a solvent catalyst mixture of 60% Trifluoroethanol, 40% H2O dispersed with 10 wt% tin (II) oxalate catalyst. A second process of polymer extrusion of PLA using graded fill contents of tin (II) oxalate has also been developed for the up scaled production of fibres as an alternative to solution treatment. Thermal analysis (TGA) was used to compare sacrificial fibre specimens. PLA fibres produced via the polymer extrusion method outperformed solution treated fibres displaying a lower degradation onset temperature (average 25°C lower), higher degradation rates (observed through a derivative curve comparison) and lower residual catalyst content (0.67% solvent treated fibre against 0.16% extruded fibre). The continuous extrusion process is solvent free and is suitable for high volume production. This work has been carried out to fully understand the fabrication issues with sacrificial components.

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
Engineering Research Institute > Engineering Composites
ID Code:31040
Deposited By: Dr Edward Archer
Deposited On:02 Mar 2015 10:39
Last Modified:02 Mar 2015 10:39

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