Vpliv sestave zmesi za 3D tisk iz lesnih delcev, mavca in lepila na lastnosti 3D natisnjenega kompozita

Mirko Kariž; Andrej Pavlič

doi:10.26614/les-wood.2025.v74n01a01

Authors

Mirko Kariž
Andrej Pavlič

DOI:

https://doi.org/10.26614/les-wood.2025.v74n01a01

Keywords:

3D printing, additive manufacturing, composite materials, wood, plaster, flexural strength, deformations

Abstract

As part of our research, we focused on the development of a new, environmentally friendly composite material for extrusion-based 3D printing based on wood particles, plaster and an adhesive additive. By systematically varying the ratios of the individual components, we investigated their influence on the printing and mechanical properties of the end products. It was found that a higher proportion of wood particles increases the force required to extrude the material through the printing nozzle, while the addition of adhesive reduces this force. The highest flexural strength of solidified samples (6.7 N/mm²) was found for the mixture containing 25% adhesive, 22% wood particles and 53% plaster. Materials with a higher proportion of wood particles showed an increased tendency to shrink and deform during drying, which had a negative effect on the geometric accuracy of the final products. Future research could focus on optimizing the material composition to reduce drying-related deformations, using larger wood particles and developing new types of binders that would improve the bonding between the individual components, and thus increase the long-term stability of the material.

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