Influence of the Structure of Low MolecularWeight Esters on Poly(lactic acid) in the Plasticization Process - part 1
Karolina Gzyra-Jagieła
- Łukasiewicz Research Network - Łódź Institute of TechnologyŁódź, Poland
- Lodz University of Technology, Faculty of Material Technologies and Textile DesignŁódź, Poland
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, Konrad Sulak
Łukasiewicz Research Network - Łódź Institute of TechnologyŁódź, Poland
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, Zbigniew Draczyński
Lodz University of Technology, Faculty of Material Technologies and Textile DesignŁódź, Poland
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, Longina Madej Kiełbik
Łukasiewicz Research Network - Łódź Institute of TechnologyŁódź, Poland
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, e Dominik Borkowski
- Łukasiewicz Research Network - Łódź Institute of TechnologyŁódź, Poland
- Lodz University of Technology, Faculty of Material Technologies and Textile DesignŁódź, Poland
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28 set 2022
INFORMAZIONI SU QUESTO ARTICOLO
Categoria dell'articolo: Research Article
Pubblicato online: 28 set 2022
Pagine: 93 - 101
DOI: https://doi.org/10.2478/ftee-2022-0027
Parole chiave
© 2022 Karolina Gzyra-Jagieła, et al, published by Sciendo
This work is licensed under the Creative Commons Attribution 3.0 Public License.
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![Free volume theory [22, 23]](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6471db0b215d2f6c89db3264/j_ftee-2022-0027_fig_003.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA6AP2G7AKOUXAVR44%2F20250911%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20250911T215610Z&X-Amz-Expires=3600&X-Amz-Signature=70f402cb68a04d0e4eed7afd77bcbdbf09673e048813aca21ae9838fb689391b&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
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Substances used in the PLA plasticisation process
| Glycerol triacetate (TAC) | ThermoFisher Scientific, Germany | 218 | |
| Triethyl citrate (TEC) | Gentham, UK | 276 | |
| Acetyl triethyl citrate (Ac-TEC) | TCI, Japan | 318 | |
| Tributyl citrate (TBC) | Acros, USA | 360 | |
| Acetyl tributyl citrate (Ac-TBC) | Merck, Germany | 402 |
Properties of 6201D PLA according to manufacturer's data
| Specific gravity, g/cm3 | 1.24 | ASTM D792 |
| Relative viscosity | 3.1 | CD Internal Viscotek Method |
| Melt index (210°C), g/10 min | 15–30 | ASTM D1238 |
| Glass transition temperature, °C | 55–60 | ASTM D3417 |
| Crystalline melt temperature, °C | 160–170 | ASTM D3418 |
Thermal parameters obtained during the second heating
| 60.0 | 0.50 | 123.9 | 42.1 | 165.9 | 42.2 | |
| 38.8 | 0.51 | 100.8 | 35.2 | 150.0 |
35.3 | |
| 41.7 | 0.52 | 104.2 | 35.1 | 153.0 |
35.3 | |
| 37.5 | 0.50 | 101.6 | 34.3 | 149.8 |
34.4 | |
| 37.8 | 0.49 | 93.0 | 34.6 | 148.9 |
34.8 | |
| 40.1 | 0.52 | 96.0 | 35.0 | 151.0 |
35.0 | |