Optimization of Process Parameters for Fabricating Polylactic acid Filaments Using Design of Experiments Approach
<b> </b>The amount of wasted polylactic acid (PLA) is increasing because 3D printing services are an increasingly popular offering in many fields. The PLA is widely employed in the fused deposition modeling (FDM) since it is an environmentally friendly polymer. However, failed prototypes...
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doaj-77c4ee311ad44ecc857e0bedcba1ee002021-04-09T23:07:04ZengMDPI AGPolymers2073-43602021-04-01131222122210.3390/polym13081222Optimization of Process Parameters for Fabricating Polylactic acid Filaments Using Design of Experiments ApproachChil-Chyuan Kuo0Jia-You Chen1Yuan-Hao Chang2Department of Mechanical Engineering, Ming Chi University of Technology, Gungjuan Road 84, New Taipei City 243, TaiwanDepartment of Mechanical Engineering, Ming Chi University of Technology, Gungjuan Road 84, New Taipei City 243, TaiwanDepartment of Mechanical Engineering, Ming Chi University of Technology, Gungjuan Road 84, New Taipei City 243, Taiwan<b> </b>The amount of wasted polylactic acid (PLA) is increasing because 3D printing services are an increasingly popular offering in many fields. The PLA is widely employed in the fused deposition modeling (FDM) since it is an environmentally friendly polymer. However, failed prototypes or physical models can generate substantial waste. In this study, the feasibility of recycling PLA waste plastic and re-extruded it into new PLA filaments was investigated. An automatic PLA filament extruder was first developed for fabricating new PLA filaments. This paper also discusses the process, challenges, and benefits of recycling PLA waste plastic in an effort to fabricate new PLA filaments more sustainable. It was found that it was possible to fabricate PLA filament using recycled PLA waste plastic. The production cost is only 60% of the commercially available PLA filament. The tensile strength of the developed PLA filament is approximately 1.1 times that of the commercially available PLA filament. The design of experiments approach was employed to investigate the optimal process parameters for fabricating PLA filaments. The most important control factor affecting the diameter of PLA filament is the barrel temperature, followed by recycled material addition ratio, extrusion speed, and cooling distance. The optimal process parameters for fabricating PLA filament with a diameter of 1.7 mm include the barrel temperature of 184 °C, extrusion speed of 490 mm/min, cooling distance of 57.5 mm, and recycled material addition ratio of 40%.https://www.mdpi.com/2073-4360/13/8/1222fused deposition modelingpolylactic acidfilamentdesign of experiments approach |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chil-Chyuan Kuo Jia-You Chen Yuan-Hao Chang |
spellingShingle |
Chil-Chyuan Kuo Jia-You Chen Yuan-Hao Chang Optimization of Process Parameters for Fabricating Polylactic acid Filaments Using Design of Experiments Approach Polymers fused deposition modeling polylactic acid filament design of experiments approach |
author_facet |
Chil-Chyuan Kuo Jia-You Chen Yuan-Hao Chang |
author_sort |
Chil-Chyuan Kuo |
title |
Optimization of Process Parameters for Fabricating Polylactic acid Filaments Using Design of Experiments Approach |
title_short |
Optimization of Process Parameters for Fabricating Polylactic acid Filaments Using Design of Experiments Approach |
title_full |
Optimization of Process Parameters for Fabricating Polylactic acid Filaments Using Design of Experiments Approach |
title_fullStr |
Optimization of Process Parameters for Fabricating Polylactic acid Filaments Using Design of Experiments Approach |
title_full_unstemmed |
Optimization of Process Parameters for Fabricating Polylactic acid Filaments Using Design of Experiments Approach |
title_sort |
optimization of process parameters for fabricating polylactic acid filaments using design of experiments approach |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2021-04-01 |
description |
<b> </b>The amount of wasted polylactic acid (PLA) is increasing because 3D printing services are an increasingly popular offering in many fields. The PLA is widely employed in the fused deposition modeling (FDM) since it is an environmentally friendly polymer. However, failed prototypes or physical models can generate substantial waste. In this study, the feasibility of recycling PLA waste plastic and re-extruded it into new PLA filaments was investigated. An automatic PLA filament extruder was first developed for fabricating new PLA filaments. This paper also discusses the process, challenges, and benefits of recycling PLA waste plastic in an effort to fabricate new PLA filaments more sustainable. It was found that it was possible to fabricate PLA filament using recycled PLA waste plastic. The production cost is only 60% of the commercially available PLA filament. The tensile strength of the developed PLA filament is approximately 1.1 times that of the commercially available PLA filament. The design of experiments approach was employed to investigate the optimal process parameters for fabricating PLA filaments. The most important control factor affecting the diameter of PLA filament is the barrel temperature, followed by recycled material addition ratio, extrusion speed, and cooling distance. The optimal process parameters for fabricating PLA filament with a diameter of 1.7 mm include the barrel temperature of 184 °C, extrusion speed of 490 mm/min, cooling distance of 57.5 mm, and recycled material addition ratio of 40%. |
topic |
fused deposition modeling polylactic acid filament design of experiments approach |
url |
https://www.mdpi.com/2073-4360/13/8/1222 |
work_keys_str_mv |
AT chilchyuankuo optimizationofprocessparametersforfabricatingpolylacticacidfilamentsusingdesignofexperimentsapproach AT jiayouchen optimizationofprocessparametersforfabricatingpolylacticacidfilamentsusingdesignofexperimentsapproach AT yuanhaochang optimizationofprocessparametersforfabricatingpolylacticacidfilamentsusingdesignofexperimentsapproach |
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