Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability

Dimonie, Doina; Dragomir, Nicoleta

Doina Dimonie, Nicoleta Dragomir

Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability

Abstract:
The article presents results regarding the use of the melt flow index method (MFIM) in estimating the rheological properties of polylactic acid (PLA) and PLA-based materials, as tool in the selection of the operating conditions at their shaping into filaments and for 3D printing with thus obtained filaments. Based on the MFIM, the molecular weight of various PLA grade commonly used in melt processing techniques, including printing, were qualitatively compared. It was found that PLA for printing has the lowest molecular weight as compared with the PLA melt processed through injection, extrusion, thermoforming. It has been also shown that the MFIM can be used to verify the efficiency of drying, pre-treatment always needed to be done, before filaments obtaining and/or printing, especially in case of renewable polyesters. By simulating the printing at the indexer, via depositing successive layers, one over the other, it was possible to estimate the optimal flow conditions that ensure a good adhesion between the deposited layers. The estimation of the condition which ensure the needed adhesion between the deposited layers with the help of the MFIM was verified with good results on a grade of high loaded PLA achieved according to an original formulation.

Keywords:
renewable; polymers; melt rheology properties; melt flow index method; PLA; filaments; 3D/4D printing

Issue: 2020 Volume 57, Issue 4

Pages: 77-87

Publication date: 2021/1/6

https://doi.org/10.37358/MP.20.4.5408

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
DIMONIE, D., DRAGOMIR, N., Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability, Mater. Plast., 57(4), 2020, 77-87. https://doi.org/10.37358/MP.20.4.5408

Vancouver
Dimonie D, Dragomir N. Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability. Mater. Plast.[internet]. 2020 Dec;57(4):77-87. Available from: https://doi.org/10.37358/MP.20.4.5408

APA 6th edition
Dimonie, D., Dragomir, N. (2020). Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability. Materiale Plastice, 57(4), 77-87. https://doi.org/10.37358/MP.20.4.5408

Harvard
Dimonie, D., Dragomir, N. (2020). 'Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability', Materiale Plastice, 57(4), pp. 77-87. https://doi.org/10.37358/MP.20.4.5408

IEEE
D. Dimonie, N. Dragomir, "Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability". Materiale Plastice, vol. 57, no. 4, pp. 77-87, 2020. [online]. https://doi.org/10.37358/MP.20.4.5408

Text
Doina Dimonie, Nicoleta Dragomir,
Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability,
Materiale Plastice,
Volume 57, Issue 4,
2020,
Pages 77-87,
ISSN 2668-8220,
https://doi.org/10.37358/MP.20.4.5408.
(https://revmaterialeplastice.ro/Articles.asp?ID=5408)
Keywords: renewable; polymers; melt rheology properties; melt flow index method; PLA; filaments; 3D/4D printing

RIS
TY - JOUR
T1 - Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability
A1 - Dimonie, Doina
A2 - Dragomir, Nicoleta
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2020
VL - 57
IS - 4
SP - 77
EP - 87
UR - https://doi.org/10.37358/MP.20.4.5408
KW - renewable
KW - polymers
KW - melt rheology properties
KW - melt flow index method
KW - PLA
KW - filaments
KW - 3D/4D printing
ER -

BibTex
@article{MatPlast2020P77,
author = {Dimonie Doina and Dragomir Nicoleta},
title = {Melt Rheology of Renewable Polymers and of New Materials Based on them as Tool in Controlling the 3D/4D Printability},
journal = {Materiale Plastice},
volume = {57},
number = {4},
pages = {77-87},
year = {2020},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.20.4.5408},
url = {https://revmaterialeplastice.ro/Articles.asp?ID=5408}
}

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