ǂThe ǂeffect of printing parameters and wood surface preparation on the adhesion of directly 3d-printed PLA on wood

Daša Krapež (Avtor), Angela Balzano (Avtor), Jure Žigon (Avtor), Milan Šernek (Avtor), Mirko Kariž (Avtor)

Povzetek

As additive manufacturing technologies advance, new opportunities are opening up for their application in the furniture industry. Wood remains one of the leading raw materials in the furniture industry; therefore, possible options for combining it with 3D printing have been researched. The bonding of 3D-printed polymer parts with wood or 3D printing with wood-plastic composites is already known, but in our research we attempted to directly 3D print polylactic acid (PLA) on wood surfaces. The effect of printing parameters, as well as the surface preparation of wood on the shear strength of the bond between wood and on-printed material was tested. Microscopic images of cross-sections of samples were analyzed. The results show that with a lower initial layer thickness (0.1 mm), a higher printing temperature (220°C), and with the use of polyvinyl acetate (PVAc) primer on the wood surface before 3D printing, a higher bond strength (5.4 MPa) was achieved, but the values for the bond strength remain low compared to the conventional bonding of wood to wood with PVAc adhesive (around 10 MPa). Microscopy studies revealed barely visible penetration of PLA into the lumens of the wood cells. However, the PVAc adhesive used as primer penetrated more into the cell lumens and served as interface layer between deposited melted PLA and the wood, thus creating stronger joints.

Ključne besede

FDM;direct 3D printing;adhesion;printing parameters;wood;PLA;PVAc;

Podatki

Jezik:	Angleški jezik
Leto izida:	2022
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL BF - Biotehniška fakulteta
UDK:	630*8
COBISS:	93164291
ISSN:	2164-6341
Št. ogledov:	252
Št. prenosov:	154
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	direkten 3D tisk;adhezija;parametri tiskanja;les;
Strani:	str. 1787-1796
Letnik:	ǂVol. ǂ10
Zvezek:	ǂno. ǂ7
Čas izdaje:	2022
DOI:	10.32604/jrm.2022.019760
ID:	14305985