Effects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling

The inherent interfacial bonding formation of layers determines the quality of complex 3D parts fabricated using fused deposition modeling (FDM). The inferior and anisotropic mechanical properties of FDM parts prevent their industrial application. This research is aimed at enhancing the mechanical p...

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Autores principales:	Ning Yu, Xiaoyong Sun, Zhi Wang, Daijun Zhang, Jing Li
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Semi-crystalline polymer Polylactide (PLA) Fused deposition modelling (FDM) Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/ae5ec691c9e64535aa20f52bf8e2d0f6
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id	oai:doaj.org-article:ae5ec691c9e64535aa20f52bf8e2d0f6
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spelling	oai:doaj.org-article:ae5ec691c9e64535aa20f52bf8e2d0f62021-11-14T04:27:58ZEffects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling0142-941810.1016/j.polymertesting.2021.107390https://doaj.org/article/ae5ec691c9e64535aa20f52bf8e2d0f62021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941821003354https://doaj.org/toc/0142-9418The inherent interfacial bonding formation of layers determines the quality of complex 3D parts fabricated using fused deposition modeling (FDM). The inferior and anisotropic mechanical properties of FDM parts prevent their industrial application. This research is aimed at enhancing the mechanical properties and reducing the mechanical anisotropy of FDM parts through an innovative auxiliary heating treatment. Polylactide (PLA), which is a distinct semicrystalline polymer commonly used in 3D printing, was selected to examine the enhancement of mechanical properties by implementing auxiliary heating treatment. When the auxiliary heating treatment is applied, the tensile strength of the FDM-printed PLA part increases from 38.4 MPa to 63.6 MPa, and the degree of mechanical anisotropy decreases from 0.51 to 0.22. The auxiliary heating treatment yields superior mechanical properties compared to those attained through post-thermal annealing. Auxiliary heating represents a kind of “in-situ” annealing strategy during FDM printing. Moreover, the auxiliary heating temperature is similar to the cold crystallization temperature (Tcc) of PLA and is the optimal processing condition to obtain superior mechanical properties. As indicated by the SEM and DSC methods, the interfacial bonding of adjacent strands and crystallinity considerably influence the mechanical properties of FDM-printed PLA parts. Therefore, the auxiliary heating approach has the potential to be applied in the fabrication of large FDM parts.Ning YuXiaoyong SunZhi WangDaijun ZhangJing LiElsevierarticleSemi-crystalline polymerPolylactide (PLA)Fused deposition modelling (FDM)Polymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 104, Iss , Pp 107390- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Semi-crystalline polymer Polylactide (PLA) Fused deposition modelling (FDM) Polymers and polymer manufacture TP1080-1185
spellingShingle	Semi-crystalline polymer Polylactide (PLA) Fused deposition modelling (FDM) Polymers and polymer manufacture TP1080-1185 Ning Yu Xiaoyong Sun Zhi Wang Daijun Zhang Jing Li Effects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling
description	The inherent interfacial bonding formation of layers determines the quality of complex 3D parts fabricated using fused deposition modeling (FDM). The inferior and anisotropic mechanical properties of FDM parts prevent their industrial application. This research is aimed at enhancing the mechanical properties and reducing the mechanical anisotropy of FDM parts through an innovative auxiliary heating treatment. Polylactide (PLA), which is a distinct semicrystalline polymer commonly used in 3D printing, was selected to examine the enhancement of mechanical properties by implementing auxiliary heating treatment. When the auxiliary heating treatment is applied, the tensile strength of the FDM-printed PLA part increases from 38.4 MPa to 63.6 MPa, and the degree of mechanical anisotropy decreases from 0.51 to 0.22. The auxiliary heating treatment yields superior mechanical properties compared to those attained through post-thermal annealing. Auxiliary heating represents a kind of “in-situ” annealing strategy during FDM printing. Moreover, the auxiliary heating temperature is similar to the cold crystallization temperature (Tcc) of PLA and is the optimal processing condition to obtain superior mechanical properties. As indicated by the SEM and DSC methods, the interfacial bonding of adjacent strands and crystallinity considerably influence the mechanical properties of FDM-printed PLA parts. Therefore, the auxiliary heating approach has the potential to be applied in the fabrication of large FDM parts.
format	article
author	Ning Yu Xiaoyong Sun Zhi Wang Daijun Zhang Jing Li
author_facet	Ning Yu Xiaoyong Sun Zhi Wang Daijun Zhang Jing Li
author_sort	Ning Yu
title	Effects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling
title_short	Effects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling
title_full	Effects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling
title_fullStr	Effects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling
title_full_unstemmed	Effects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling
title_sort	effects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ae5ec691c9e64535aa20f52bf8e2d0f6
work_keys_str_mv	AT ningyu effectsofauxiliaryheatontheinterlayerbondsandmechanicalperformanceofpolylactidemanufacturedthroughfuseddepositionmodeling AT xiaoyongsun effectsofauxiliaryheatontheinterlayerbondsandmechanicalperformanceofpolylactidemanufacturedthroughfuseddepositionmodeling AT zhiwang effectsofauxiliaryheatontheinterlayerbondsandmechanicalperformanceofpolylactidemanufacturedthroughfuseddepositionmodeling AT daijunzhang effectsofauxiliaryheatontheinterlayerbondsandmechanicalperformanceofpolylactidemanufacturedthroughfuseddepositionmodeling AT jingli effectsofauxiliaryheatontheinterlayerbondsandmechanicalperformanceofpolylactidemanufacturedthroughfuseddepositionmodeling
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Effects of auxiliary heat on the interlayer bonds and mechanical performance of polylactide manufactured through fused deposition modeling

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