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Hygromorphic response dynamics of 3D-printed wood-PLA composite bilayer actuators [Elektronski vir]Krapež Tomec, Daša, 1990- ...The use of wood particles in wood-plastic composites (WPC) is well known and similar use could occur in materials for fused deposition modeling (FDM) 3D printing. Wood particles could be one of the ... possible solutions in the search for natural-based materials to minimize the use of synthetic-origin materials in additive manufacturing. Wood particles for 3D printing filaments can be made from wood waste and could serve as a cheap filler or as a value-added reinforcing component, depending on their properties and incorporation. The disadvantages of wood (dimensional changes due to water adsorption and desorption) could be used as functions when dimensional change is desirable, such as in shape-changing 4D printing materials. In this research, FDM printing materials made of polylactic acid (PLA), with different amounts of wood particles, were used to design moisture-induced shape-changing bilayer actuators, which could serve as a principle for active façade or ventilation valves. The initial research shows that the wood content in the WPC causes dimensional changes and thus shape changes of the designed actuators under changing climates. The shape change depends on the ratio of the materials in the two-layered actuator and the wood content in the wood-PLA composite used, and thus on sorption. The rate of the shape change behaves in the same way: the higher the wood content, the greater the change observed. The dynamics of the hygromorphism of bimaterial composites is greater with a small amount of added hygromechanically active material.Source: Polymers [Elektronski vir]. - ISSN 2073-4360 (Vol. 13, iss. 19, 2021, str. 1-16)Type of material - e-article ; adult, seriousPublish date - 2021Language - englishCOBISS.SI-ID - 77786627
Author
Krapež Tomec, Daša, 1990- |
Straže, Aleš |
Haider, Andreas |
Kariž, Mirko
Topics
3D tiskanje |
4D tiskanje |
aktuator |
les |
dimenzijske spremembe |
materiali z oblikovnim spominom |
3D printing |
4D printing |
actuators |
wood |
dimensional changes |
shape-changing materials
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Krapež Tomec, Daša, 1990- | 52214 |
Straže, Aleš | 18149 |
Haider, Andreas | ![]() |
Kariž, Mirko | 29227 |
Source: Personal bibliographies
and: SICRIS
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