Manufacturing Technology 2022, 22(3):327-333 | DOI: 10.21062/mft.2022.041

Degradation of 3D Printed Polymer Composites with Filler of Cellulose-Based Materials

Dominik Piš ORCID..., Hana Pouzarová ORCID..., Kristýna Hanušová ORCID...

Faculty of Engineering, Department of Material Science and Manufacturing Technology, Czech University of Life Sciences Prague, Kamycka 129, Prague 6 - Suchdol, 165 00 Prague, Czech Republic

Today, the emphasis is on the production of materials that are degradable in nature and on produc-tion with modern technologies. In order for these materials to find a suitable use, they need to be exposed to the conditions that may arise in the application. The effect of degradation was assessed for composite materials with a PLA matrix and a natural-based filler, which were processed by 3D printing technology. The progress of degradation in the climate chamber was monitored over a peri-od of 6 weeks. The results are determined by static tensile test and hardness test and the difference in weights of the test bodies. The test results confirmed. During the degradation process, the test spec-imens with natural fillers deformed less than the specimens made of pure PLA. The maximum ten-sile strength values for the material with natural fillers were approximately two thirds lower than for pure PLA. The maximum tensile strength during degradation showed an increasing or stagnant ten-dency. the maximum elongation decreased during degradation for the material with fillers showed a logarithmic behavior compared to pure PLA with a linear tendency.

Keywords: Additive manufacturing, Biofillers, PLA, mechanical properties

Grants and funding:

Contribution has been prepared within the solving of scientific grant project IGA 2021:31140/1312/3115 “Degradation of polymer composite materials printed by 3D printing with cellulose-based filler.“

Received: March 8, 2022; Revised: June 18, 2022; Accepted: June 21, 2022; Prepublished online: June 22, 2022; Published: July 1, 2022  Show citation