Polylactide/hemp hurd biocomposites as sustainable 3D printing feedstock

Xiao, Xianglian and Chevali, Venkata S. ORCID: https://orcid.org/0000-0002-5648-0344 and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X and He, Dongning and Wang, Hao (2019) Polylactide/hemp hurd biocomposites as sustainable 3D printing feedstock. Composites Science and Technology, 184. pp. 1-8. ISSN 0266-3538


Industrial hemp hurd (HH) is emerging as a bio-based filler in thermoplastic biocomposites. In this paper, HH/polylactide (PLA) biocomposites were developed as fused deposition modelling (FDM) feedstock through parametric analysis of the effects of HH loading with respect to melt flow, rheology, physical, thermo mechanical, and mechanical properties of the biocomposites. Poly (butylene adipate-co-terephthalate) (PBAT) and ethylene-methyl acrylate-glycidyl methacrylate terpolymer (EGMA) were used as toughening and compatibilisation agents respectively in melt-compounding and extrusion to produce FDM filament. The FDM-printed standard samples were compared against corresponding injection-moulded biocomposites. The FDM filament exhibited a diameter tolerance within ±0.02 mm, and roundness variability below 0.03 mm, and the FDM-printed parts with HH loading under 30 phr showed higher impact toughness than the commercial PLA filament control. In addition, the FDM-printed samples exhibited greater dimensional accuracy with increasing HH loading.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021)
Date Deposited: 21 Jan 2020 03:12
Last Modified: 24 Nov 2021 00:34
Uncontrolled Keywords: Polymer-matrix composites (PMCs); Impact behaviour; Elastic properties; Injection moulding; Rheology
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
40 ENGINEERING > 4016 Materials engineering > 401609 Polymers and plastics
Socio-Economic Objectives (2008): B Economic Development > 86 Manufacturing > 8698 Environmentally Sustainable Manufacturing > 869899 Environmentally Sustainable Manufacturing not elsewhere classified
B Economic Development > 86 Manufacturing > 8606 Industrial Chemicals and Related Products > 860607 Plastic Products (incl. Construction Materials)
Funding Details:
Identification Number or DOI: https://doi.org/10.1016/j.compscitech.2019.107887
URI: http://eprints.usq.edu.au/id/eprint/37208

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