Environmental Durability of Bio-Based and Synthetic Thermoplastic Composites in Large-Format Additive Manufacturing-Reference-Cited by-同舟云学术

Environmental Durability of Bio-Based and Synthetic Thermoplastic Composites in Large-Format Additive Manufacturing

Published:2024-03-12 Issue:6 Volume:16 Page:787
ISSN:2073-4360
Container-title:Polymers
language:en
Short-container-title:Polymers

Author:

Saavedra-Rojas Felipe A.¹²^ORCID,Bhandari Sunil¹²^ORCID,Lopez-Anido Roberto A.¹²^ORCID

Affiliation:

1. Advanced Structures and Composite Center, University of Maine, Orono, ME 04469, USA

2. Department of Civil and Environmental Engineering, University of Maine, Orono, ME 04469, USA

Abstract

This research investigates the durability of large-format 3D-printed thermoplastic composite material systems under environmental exposure conditions of moisture and freeze–thaw. Durability was evaluated for two bio-based composite material systems, namely wood-fiber-reinforced semi-crystalline polylactic acid (WF/PLA) and wood-fiber-reinforced amorphous polylactic acid (WF/aPLA), and one conventionally used synthetic material system, namely short-carbon-fiber-reinforced acrylonitrile butadiene styrene (CF/ABS). The moisture absorption, coefficient of moisture expansion, and reduction of relevant mechanical properties—flexural strength and flexural modulus—after accelerated exposure were experimentally characterized. The results showed that the large-format 3D-printed parts made from bio-based thermoplastic polymer composites, compared to conventional polymer composites, were more susceptible to moisture and freeze–thaw exposure, with higher moisture absorption and greater reductions in mechanical properties.

Funder

Transportation Infrastructure Durability Center at the University of Maine

Publisher

MDPI AG

Link

https://www.mdpi.com/2073-4360/16/6/787/pdf

Reference50 articles.

1. Large-scale 3D printers for additive manufacturing: Design considerations and challenges;Shah;Int. J. Adv. Manuf. Technol.,2019

2. Bishop, E.G., and Leigh, S.J. (2020). Using large-scale additive manufacturing as a bridge manufacturing process in response to shortages in personal protective equipment during the COVID-19 outbreak. Int. J. Bioprinting, 6.

3. Roschli, A., Post, B.K., Chesser, P.C., Sallas, M., Love, L.J., and Gaul, K.T. (2018, January 13–15). Precast concrete models fabricated with big area additive manufacturing. Proceedings of the 2018 International Solid Freeform Fabrication Symposium, Austin, TX, USA.

4. Bhandari, S., Lopez-Anido, R., and Anderson, J. (2020, January 13–14). Large scale 3D printed thermoplastic composite forms for precast concrete structures. Proceedings of the Conference & Exhibition on Thermoplastic Composites, Bremen, Germany.

5. Bhandari, S., Lopez-Anido, R., Rojas, F., and LeBihan, A. (2022, January 1–5). Design and Manufacture of Precast Concrete Formworks Using Polymer Extrusion-Based Large-Scale Additive Manufacturing and Postprocessing. Proceedings of the ASTM International Conference on Additive Manufacturing (ICAM 2021), Anaheim, CA, USA.

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