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Effect of thermal modification of wood on the rheology, mechanical properties and dimensional stability of wood composite filaments and 3D-printed parts
ID
Krapež Tomec, Daša
(
Avtor
),
ID
Schöflinger, Manfred
(
Avtor
),
ID
Leßlhumer, Jürgen
(
Avtor
),
ID
Žigon, Jure
(
Avtor
),
ID
Humar, Miha
(
Avtor
),
ID
Kariž, Mirko
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(3,29 MB)
MD5: C47D8CC4FB038559337DA96982D50F20
URL - Izvorni URL, za dostop obiščite
https://www.tandfonline.com/doi/full/10.1080/17480272.2024.2316740
Galerija slik
Izvleček
This paper describes the development and characterisation of wood-filled polylactic acid (PLA) composite filaments for application in fused filament fabrication three-dimensional (3D) printing. Four different wood-polymer composite filaments for 3D printing were prepared, and specimens were 3D-printed with the obtained materials. The composite filaments consisted of wood particles (10% or 20% mass ratio) and a PLA polymer matrix. Wood particles were prepared by grinding and sieving non-modified beech wood and thermally modified (TM) (at 200 °C) beech wood. Thermal modification of wood affected particle preparation and smaller particles with lower aspect ratios were obtained. Filaments with TM wood particles were extruded better than with non-modified wood particles, with lower surface roughness and lower porosity. With a higher wood ratio, the surface roughness and porosity of the filament increased. Non-homogenous filaments also affected extrusion in 3D printing and reduced the properties of 3D-printed parts. Parts 3D-printed from filaments with TM particles had better tensile strength than from filaments with non-modified particles, but were lower than from pure PLA filaments. The tensile strength of the injection-moulded specimens was 18–69% higher than that of the 3D-printed specimens, depending on the filament composition. The results indicate some positive effects of thermal modification of wood particles on the properties of filaments and 3D-printed parts. Nevertheless, further optimisation of particle preparation and extrusion parameters is needed to obtain quality filaments with this size of wood particles.
Jezik:
Angleški jezik
Ključne besede:
wood-polylactic acid composite
,
3D printing
,
thermally modified wood
,
dimensional stability
,
mechanical properties
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
BF - Biotehniška fakulteta
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Datum objave:
01.01.2024
Leto izida:
2024
Št. strani:
Str. 1-15
Številčenje:
Vol. [sprejeto v objavo], iss. [sprejeto v objavo]
PID:
20.500.12556/RUL-154538
UDK:
630*8
ISSN pri članku:
1748-0280
DOI:
10.1080/17480272.2024.2316740
COBISS.SI-ID:
186147843
Datum objave v RUL:
20.02.2024
Število ogledov:
614
Število prenosov:
45
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Wood material science & engineering
Skrajšan naslov:
Wood mater. sci. eng
Založnik:
Taylor & Francis
ISSN:
1748-0280
COBISS.SI-ID:
522172953
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
les-PLA kompozit
,
3D tisk
,
termično modificiran les
,
dimenzijska stabilnost
,
mehanske lastnosti
Projekti
Financer:
ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:
P4-0015
Naslov:
Les in lignocelulozni kompoziti
Financer:
ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:
P4-0430
Naslov:
Gozdno-lesna veriga in podnebne spremembe: prehod v krožno biogospodarstvo
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