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Selective laser sintering responses of keratin-based bio-polymer composites

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posted on 2023-05-03, 19:03 authored by Sarat Singamneni, Rajkumar Velu, Malaya Prasad Behera, Sonya ScottSonya Scott, Peter BrorensPeter Brorens, Duane HarlandDuane Harland, Juliet Gerrard
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.

History

Rights statement

© 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/.

Language

  • English

Does this contain Māori information or data?

  • No

Publisher

Elsevier

Journal title

Materials and Design

ISSN

0264-1275

Citation

Singamneni, S., Velu, R., Behera, M. P., Scott, S., Brorens, P., Harland, D., & Gerrard, J. (2019). Selective laser sintering responses of keratin-based bio-polymer composites. Materials and Design, 183, 108087. doi:10.1016/j.matdes.2019.108087

Funder

Strategic Science Investment Fund (SSIF)

Contract number

A21232

Job code

151803x01

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