Impact of Chemical Post-Processing in Fused Deposition Modelling (FDM) on Polylactic Acid (PLA) Surface Quality and Structure

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2019-03Department
Ingeniería Mecánica y Diseño IndustrialSource
Polymers 2019, 11, 566Abstract
The application of techniques to improve the surface finish of pieces obtained by fused
deposition modelling, as well as other functional aspects, is of great interest nowadays. Polylactic
acid, a biodegradable material, has been considered a possible substitute for petroleum-based
polymers. In this work, different chemical post-processing methods are applied to polylactic acid
pieces obtained by fused deposition modelling and some characteristics are studied. Structural,
thermal, and crystallinity property changes are analyzed according to the treatments applied. This
can prevent degradation, eliminate the glass transition phase of the material, and thereby increase
the thermal resistance by about 50 C. An improvement in the roughness of the pieces of up to 97%
was also found.
Subjects
additive manufacturing; organic solvent; chemical treatment; roughness; finishing processes; biodegradable polymer; green technologyCollections
- Artículos Científicos [5002]
- Articulos Científicos Ing. Mec. [93]