Selective laser sintering responses of keratin-based bio-polymer composites
Keratin-based materials have unique biological and mechanical attributes due to the protein's molecular structure and organisation. The current study evaluates the possible consolidation of keratin powders by selective laser sintering (SLS), a key enabler of additive manufacturing. The laser en...
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doaj-8f6b0019bf99467cb97790751b6bbb7f2020-11-25T01:43:59ZengElsevierMaterials & Design0264-12752019-12-01183Selective laser sintering responses of keratin-based bio-polymer compositesSarat Singamneni0Rajkumar Velu1Malaya Prasad Behera2Sonya Scott3Peter Brorens4Duane Harland5Juliet Gerrard6Auckland University of Technology, Auckland, New Zealand; Corresponding author.Singapore University of Technology and Design, SingaporeAuckland University of Technology, Auckland, New ZealandAgresearch Ltd, Lincoln, New ZealandAgresearch Ltd, Lincoln, New ZealandAgresearch Ltd, Lincoln, New ZealandSchool of Biological Sciences, University of Auckland, Auckland, New Zealand; School of Chemical Sciences, University of Auckland, Auckland, New ZealandKeratin-based materials have unique biological and mechanical attributes due to the protein's molecular structure and organisation. The current study evaluates the possible consolidation of keratin powders by selective laser sintering (SLS), a key enabler of additive manufacturing. The laser energy input became too intense for the thermally sensitive keratin powders. However, polymer keratin composites developed by blending with polyamide and polyethylene powders were evaluated and shown to be suitable for processing by SLS. Blends were thermally characterised to establish the initial process conditions. Morphological evaluation of the initial sintered samples allowed optimisation of the energy densities. Mechanical responses of the samples produced under these conditions were evaluated. Polymer-keratin composites were established as candidate materials for SLS. Critical attributes of these material combinations require further optimisation before these materials would be competitive in the market place. Keywords: Keratin, Polyamide, Polyethylene, Selective laser sintering, Polymer-keratin compositeshttp://www.sciencedirect.com/science/article/pii/S0264127519305258 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sarat Singamneni Rajkumar Velu Malaya Prasad Behera Sonya Scott Peter Brorens Duane Harland Juliet Gerrard |
spellingShingle |
Sarat Singamneni Rajkumar Velu Malaya Prasad Behera Sonya Scott Peter Brorens Duane Harland Juliet Gerrard Selective laser sintering responses of keratin-based bio-polymer composites Materials & Design |
author_facet |
Sarat Singamneni Rajkumar Velu Malaya Prasad Behera Sonya Scott Peter Brorens Duane Harland Juliet Gerrard |
author_sort |
Sarat Singamneni |
title |
Selective laser sintering responses of keratin-based bio-polymer composites |
title_short |
Selective laser sintering responses of keratin-based bio-polymer composites |
title_full |
Selective laser sintering responses of keratin-based bio-polymer composites |
title_fullStr |
Selective laser sintering responses of keratin-based bio-polymer composites |
title_full_unstemmed |
Selective laser sintering responses of keratin-based bio-polymer composites |
title_sort |
selective laser sintering responses of keratin-based bio-polymer composites |
publisher |
Elsevier |
series |
Materials & Design |
issn |
0264-1275 |
publishDate |
2019-12-01 |
description |
Keratin-based materials have unique biological and mechanical attributes due to the protein's molecular structure and organisation. The current study evaluates the possible consolidation of keratin powders by selective laser sintering (SLS), a key enabler of additive manufacturing. The laser energy input became too intense for the thermally sensitive keratin powders. However, polymer keratin composites developed by blending with polyamide and polyethylene powders were evaluated and shown to be suitable for processing by SLS. Blends were thermally characterised to establish the initial process conditions. Morphological evaluation of the initial sintered samples allowed optimisation of the energy densities. Mechanical responses of the samples produced under these conditions were evaluated. Polymer-keratin composites were established as candidate materials for SLS. Critical attributes of these material combinations require further optimisation before these materials would be competitive in the market place. Keywords: Keratin, Polyamide, Polyethylene, Selective laser sintering, Polymer-keratin composites |
url |
http://www.sciencedirect.com/science/article/pii/S0264127519305258 |
work_keys_str_mv |
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