RT journal article
T1 Impact of In-Soil Ageing Effect on PLA Printed Parts Tensile Properties
A1 Valerga Puerta, Ana Pilar
A1 Fernández Vidal, Severo Raúl
A1 Girot, Franck
A2 Ingeniería Mecánica y Diseño Industrial
K1 surface improvement
K1 additive manufacturing
K1 design
K1 chemical treatment
K1 tensile test
K1 degradation
AB Material extrusion (MEX), more commonly known as fused deposition modelling (FDM/FFF),is one of the most widely used techniques in polymeric Additive Manufacturing (AM). This technologyis increasingly present in fields such as engineering and medicine with polymeric materials,including additives of many types. Polylactic acid polymer (PLA) is one of the most widely usedmaterials currently on the market for MEX technology. In addition to its ease of printing, it is aplastic of natural origin, biodegradable and supplants petroleum derivatives in many applications.However, the effect of ageing on the mechanical properties of PLA are still to be evaluated andunderstood. The main objective of this work is to investigate the effects of ageing of PLA sampleson the tensile properties. To investigate the effect of ageing, the samples were tested periodicallyafter exposure to fertilized soil for a period up to 6 months. In addition, some of the samples werechemically pre-treated to improve the surface quality, and the effect of ageing on the treated anduntreated samples was also evaluated. This study showed that ultimate strength decreased withageing from 46 to 36 MPa (22%), and it increased with treatment time in high percentages (even 40%)depending on the time of immersion in the solvent. However, this effect of the chemical treatmentgradually disappeared, with the exception of the surface improvement obtained.
PB MDPI
SN 2073-4360
YR 2023
FD 2023
LK http://hdl.handle.net/10498/32448
UL http://hdl.handle.net/10498/32448
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026