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The Impact of Multifunctional Polysiloxanes on Enhancing the Properties of Polyethylene Terephthalate Glycol (PET-G) for FDM/FFF 3D-Printing Cover

The Impact of Multifunctional Polysiloxanes on Enhancing the Properties of Polyethylene Terephthalate Glycol (PET-G) for FDM/FFF 3D-Printing

Open Access
|Jun 2025

Figures & Tables

Fig. 1.

PWS-2HEX-1AGE, Poly((hexylmethylsiloxane)-co-(3-propylglycidyl), trimethylsilyl terminated
PWS-2HEX-1AGE, Poly((hexylmethylsiloxane)-co-(3-propylglycidyl), trimethylsilyl terminated

Fig. 2.

PWS-2OKT-1AGE, Poly((methyloctylsiloxane)-co-(3-propylglycidyl), trimethylsilyl terminated
PWS-2OKT-1AGE, Poly((methyloctylsiloxane)-co-(3-propylglycidyl), trimethylsilyl terminated

Fig. 3.

PWS-2HEX-1TMOS, Poly((hexylmethylsiloxane)-co-(methyl(trimethoxyethyl)siloxane)), trimethylsilyl terminated (94% convertion)
PWS-2HEX-1TMOS, Poly((hexylmethylsiloxane)-co-(methyl(trimethoxyethyl)siloxane)), trimethylsilyl terminated (94% convertion)

Fig. 4.

PWS-2OCT-1TMOS, Poly((methyloctylsiloxane)-co-(methyl(trimethoxyethyl)siloxane)), trimethylsilyl terminated (94% conversion)
PWS-2OCT-1TMOS, Poly((methyloctylsiloxane)-co-(methyl(trimethoxyethyl)siloxane)), trimethylsilyl terminated (94% conversion)

Fig. 5.

Tensile strain (elongation at tensile strength) of PET-G and its composites as a function of polysiloxane-based modifier share
Tensile strain (elongation at tensile strength) of PET-G and its composites as a function of polysiloxane-based modifier share

Fig. 6.

Force vs elongation curves of PET-G and its composites
Force vs elongation curves of PET-G and its composites

Fig. 7.

Tensile strength of PET-G and its composites as a function of polysiloxane-based modifier share
Tensile strength of PET-G and its composites as a function of polysiloxane-based modifier share

Fig. 8.

Flexural strength of PET-G and its composites as a function of polysiloxane-based modifier share
Flexural strength of PET-G and its composites as a function of polysiloxane-based modifier share

Fig. 9.

Flexural modulus of PET-G and its composites as a function of polysiloxane-based modifier share
Flexural modulus of PET-G and its composites as a function of polysiloxane-based modifier share

Fig. 10.

Melt flow rate of PET-G and its composites as a function of polysiloxane-based modifier share
Melt flow rate of PET-G and its composites as a function of polysiloxane-based modifier share

Fig. 11.

Microscopic photos of sample fractures: 1A-2A Reference; 1B- 0.1%, 2B- 2.5% - PETG/PWS-AGE:2HEX; 1C- 0.1%, 2C- 2.5% - PETG/PWS-AGE:2OCT; 1D- 0.1%, 2D- 2.5% - PETG/PWS-TMOS:2OCT; 1E- 0.1%, 2E- 2.5% PETG/PWS-TMOS:2HEX
Microscopic photos of sample fractures: 1A-2A Reference; 1B- 0.1%, 2B- 2.5% - PETG/PWS-AGE:2HEX; 1C- 0.1%, 2C- 2.5% - PETG/PWS-AGE:2OCT; 1D- 0.1%, 2D- 2.5% - PETG/PWS-TMOS:2OCT; 1E- 0.1%, 2E- 2.5% PETG/PWS-TMOS:2HEX

Fig. 12.

DSC curves recorded for samples
DSC curves recorded for samples

Contact angle measurement results for PET-G systems containing 2_5% polysiloxane-based additive

Name of the sampleContact angle[°]
PET-G neat70.6
PETG/PWS-TMOS:2HEX73.4
PETG/PWS-TMOS:4OCT80.6
PETG/PWS-AGE:2HEX75.8
PETG/PWS-AGE:2OCT88.2

Results of DSC analysis

Name of the sampleTg [°C]
PET-G neat86.3
PETG/PWS-TMOS:2HEX82.1
PETG/PWS-TMOS:2OCT80.4
PETG/PWS-AGE:2HEX84.3
PETG/PWS-AGE:2OCT78.2

Polysiloxane derivatives

CoreOlefin 1Olefin 2Molar ratio
PWSHEXTMOS2:1
PWSOCTTMOS4:1
PWSHEXAGE2:1
PWSOCTAGE2:1

3D Printing process parameters

Parameter nameParameter value
Layer height0.18 mm
Top layer height0.27 mm
Shells2
Top and bottom layers number3
Infill density100%
Fill angle45°
Infill patternRectlinear grid
Printing speed60 mm/s
Idle speed80 mm/s
Extruder temp.230°C
Table temp.75°C
DOI: https://doi.org/10.2478/ama-2025-0030 | Journal eISSN: 2300-5319 | Journal ISSN: 1898-4088
Language: English
Page range: 243 - 249
Submitted on: Dec 27, 2023
Accepted on: Nov 27, 2024
Published on: Jun 6, 2025
Published by: Bialystok University of Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2025 Bogna SZTORCH, Julia GŁOWACKA, Miłosz FRYDRYCH, Daria PAKUŁA, Eliza ROMAŃCZUK-RUSZUK, Natalia KUBIAK, Robert E. PRZEKOP, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.