RT journal article
T1 On the Relationship between Mechanical Properties and Crystallisation of Chemically Post-Processed Additive Manufactured Polylactic Acid Pieces
A1 Valerga Puerta, Ana Pilar
A1 Fernández Vidal, Severo Raúl
A1 Girot, F.
A1 Gámez López, Antonio Juan
A2 Ingeniería Mecánica y Diseño Industrial
K1 manufacturing design
K1 hardness
K1 tensile strength
K1 crystallite
K1 polylactic acid
K1 fused deposition modelling
K1 finishing processes
K1 biodegradable polymer
AB Nowadays, improvement of the surface finish of parts manufactured by fused deposition modelling is a well-studied topic. Chemical post-treatments have proven to be the best technique in terms of time consumption and smoothness improvement. However, these treatments modify the structure of the material and, consequently, its mechanical properties. This relationship was studied in this work. In this case, on the basis of a previous study on crystallisation, polylactic acid pieces were subjected to different post-treatments to evaluate their effects on the sample's mechanical properties, i.e., tensile strength and hardness. Models were obtained according to their percentage of crystallisation, which was related to the different treatments, as well as immersion time. Dramatic changes were obtained within a wide range of material behaviour with some treatments. Specifically, changes were obtained in the maximum stress (from 55 to 20 MPa), in elongation (from 3% to 260%), and in the hardness scale (Shore D to A).
PB MDPI
SN 2073-4360
YR 2020
FD 2020-04
LK http://hdl.handle.net/10498/23173
UL http://hdl.handle.net/10498/23173
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-may-2026