RT Journal Article
T1 Correlation between Surface Texture, Wettability and Mechanical Strength of Polylactic Acid Parts Fabricated by Fused Filament Fabrication.
A1 Bañón-García, Fermín
A1 Bermudo-Gamboa, Carolina
A1 López-Fernández, José Andrés
A1 Trujillo-Vilches, Francisco Javier
A1 Martín-Béjar, Sergio
K1 Procesos de fabricación
K1 Polímeros
K1 Superficies (Tecnología)
K1 Materiales - Textura
AB This research investigates the generation and evaluation of various geometric surface textures on PLA components produced via fused filament fabrication (FFF). Textures, including grooves, pyramids, and cylinders, were created at different depth levels on the PLA surfaces. The surface quality of these textures was assessed using a 3D optical system, focusing on area parameters such as Sa and Sz. The wettability of each texture was evaluated through contact angle and sliding angle tests, revealing the ability to modulate contact angles and achieve either hydrophobic or hydrophilic surfaces depending on the texture type. Subsequently, pairs of textured PLA pieces were bonded using a cyanoacrylate adhesive following standardised protocols, and shear tests were conducted to determine the maximum shear stress at bond (τmax) of each texture. Notably, textured surfaces generally exhibited hydrophobic properties that reduce the adhesion between the adhesive and the piece, leading to reduced maximum shear stress at bond values compared to non-textured surfaces. However, groove textures notably increased τmax values. The results were analysed to establish correlations between surface quality, wettability, and shear strength. This comprehensive evaluation aims to elucidate the influence of surface texture on the mechanical performance and adhesive properties of FFF-manufactured PLA components.
PB MDPI
YR 2024
FD 2024-08-14
LK https://hdl.handle.net/10630/40150
UL https://hdl.handle.net/10630/40150
LA eng
NO Bañón-García, F.; Bermudo Gamboa, C.; López-Fernández, J.A.; Trujillo-Vilches, F.J.; Martín-Béjar, S. Correlation between Surface Texture, Wettability and Mechanical Strength of Polylactic Acid Parts Fabricated by Fused Filament Fabrication. Coatings 2024, 14, 1033. https://doi.org/10.3390/coatings14081033
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026