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Open AccessArticle

Performance Analysis of Colored PLA Products with a Fused Filament Fabrication Process

by Roberto Spina 1,2,3
1
Dip. di Meccanica, Matematica e Management, Politecnico di Bari, 70131 Bari, Italy
2
Istituto Nazionale di Fisica Nucleare (INFN)—Sezione di Bari, 70125 Bari, Italy
3
Consiglio Nazionale delle Ricerche—Istituto di Fotonica e Nanotecnologie (CNR-IFN), 70126 Bari, Italy
Polymers 2019, 11(12), 1984; https://doi.org/10.3390/polym11121984
Received: 3 October 2019 / Revised: 21 November 2019 / Accepted: 28 November 2019 / Published: 2 December 2019
(This article belongs to the Section Polymer Applications)
The objective of the present work is to study the influence of color additives used for the polylactic acid (PLA) filament on the final quality of fused filament fabrication (FFF) parts. The main processing parameters of FFF parts were evaluated, identifying the significant correlations between PLA properties and part performance, using a commercial FFF machine. The quality of the products was evaluated in terms of thermo-mechanical properties such as mechanical strength, principal material temperatures, and viscosity. These last properties were characterized using differential scanning calorimetry (DSC) for the thermal measurements and a rotational rheometry (RHEO) for viscosity measurements. Cylindrical specimens were then produced for the compression test. The experimental activity and related testing of products are fully described, pointing out a significant difference in performance between parts made of different colored filaments. View Full-Text
Keywords: FFF parts; material characterization; mechanical testing FFF parts; material characterization; mechanical testing
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MDPI and ACS Style

Spina, R. Performance Analysis of Colored PLA Products with a Fused Filament Fabrication Process. Polymers 2019, 11, 1984.

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