Mechanical properties and microstructure of hemp hurd reinforced polylactide biocomposites for 3D printing
Article
Article Title | Mechanical properties and microstructure of hemp hurd reinforced polylactide biocomposites for 3D printing |
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ERA Journal ID | 1690 |
Article Category | Article |
Authors | Xiao, Xianglian, Chevali, Venkata S., Song, Pingan, Yu, Bin, Feng, Jiabing, Loh, Thomas W and Wang, Hao |
Journal Title | Polymer Composites |
Number of Pages | 11 |
Year | 2024 |
Publisher | John Wiley & Sons |
Place of Publication | United States |
ISSN | 0272-8397 |
1548-0569 | |
Digital Object Identifier (DOI) | https://doi.org/10.1002/pc.28893 |
Web Address (URL) | https://4spepublications.onlinelibrary.wiley.com/doi/10.1002/pc.28893 |
Abstract | Polylactide (PLA) biocomposite filaments containing hemp hurd (HH) of variable particle size were evaluated in comparison with injection-molded counterparts using single/twin screw extrusion in this study. HH particle size (35, 50, and 160 μm) was parametrically investigated for its efficacy within PLA/HH biocomposites and fused filament fabrication (FFF)-printed parts by assessing its effect on performance through rheological, microstructural, mechanical, and surface finish analyses. In addition, melt flow indexing, rheometry, scanning electron microscopy, mechanical testing, and x-ray computed tomography were utilized to analyze microstructure, mechanical performance, and surface roughness. With an increase in particle size of the HH, the corresponding biocomposites showed increased flowability, and the injection-molded specimens showed increased impact strength. The FFF printing of the biocomposite filament presented no challenges, and the mechanical properties of FFF parts enhanced with a particle size smaller than the printed layer thickness. Compared with injection-molded parts, FFF-printed samples showed higher impact strength. The FFF-printed PLA/HH biocomposite samples showed considerable potential over their injection molded alternatives for low-volume specialized applications. |
Keywords | hemp hurd; surface roughnes; 3D printing; porosity; polylactic acid; particle size; mechanical properties |
Article Publishing Charge (APC) Funding | Other |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
401609. Polymers and plastics | |
Byline Affiliations | Centre for Future Materials |
Hunan Institute of Technology, China | |
University of Science and Technology of China, Hefei, China | |
Jiaxing University, China | |
Royal Melbourne Institute of Technology (RMIT) |
https://research.usq.edu.au/item/z95vq/mechanical-properties-and-microstructure-of-hemp-hurd-reinforced-polylactide-biocomposites-for-3d-printing
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Polymer Composites - 2024 - Xiao - Mechanical properties and microstructure of hemp hurd reinforced polylactide.pdf | ||
License: CC BY-NC 4.0 | ||
File access level: Anyone |
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