Influence of the Structure of Low MolecularWeight Esters on Poly(lactic acid) in the Plasticization Process - part 1

• Autorzy: Gzyra-Jagieła Karolina , Sulak Konrad , Draczyński Zbigniew , Madej Kiełbik Longina , Jagodzińska Sylwia , Borkowski Dominik

Identyfikatory

DOI

10.2478/ftee-2022-0027

• Języki publikacji: EN

Abstrakty

EN

Polymers derived from renewable sources which are additionally subject to degradation processes are currently an interesting alternative to conventional polymers of petrochemical origin. One of such polymers is poly(lactic acid) (PLA), which can be used in the packaging, textile and also medical industries. Its great advantage is the susceptibility to biodegradation and the nontoxicity of the degradation products. Because of high brittleness and stiffness, the modification of PLA is necessary to improve its plastic deformability, which can expand the new application possibilities. As part of the research work, the modification of PLA by plasticisation was undertaken to improve its plastic deformability properties. The low molecular mass esters from the citrate group and glycerol triacetate were used. The samples extruded from plasticised polymer were characterised using Differential Scanning Calorimetry (DSC) and Gel Permeation Chromatography/Size Exclusion Chromatography (GPC/SEC). The mechanical properties and melt flow rate after modification were determined. The aim of the research was to determine the relationship between the structure of a plasticiser and its ability to reduce the interactions in the polymer chain in order to develop an optimal polymerplasticiser arrangement. Based on this research, there was no relationship between the efficiency of the plasticisation process and the increasing molecular mass of the plasticiser. The additional chemical (acetyl) group in the plasticiser also does not increase the efficiency of the PLA plasticisation process. In the next steps of the research, functional forms will be produced, i.e. fibers, films, and fittings from the selected polymer-plasticiser systems.

Słowa kluczowe

EN

polylactic acid; plasticisation; GPC/SEC; gel permeation chromatography; size exclusion chromatography; citrate; glycerol triacetate

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2022
• Tom: Vol. 30, no. 3
• Strony: 93--101
• Opis fizyczny: Bibliogr. 35 poz., rys., tab.

Twórcy

autor

Gzyra-Jagieła Karolina

• Łukasiewicz Research Network - Łódź Institute of Technology, 19/27 M. Skłodowskiej-Curie Str., 90 570 Łódź, Poland
• Lodz University of Technology, Faculty of Material Technologies and Textile Design 116 Żeromskiego Str., 90-924 Łódź, Poland

• https://orcid.org/0000-0001-5611-0274

autor

Sulak Konrad

• Łukasiewicz Research Network - Łódź Institute of Technology, 19/27 M. Skłodowskiej-Curie Str., 90 570 Łódź, Poland

• https://orcid.org/0000-0001-8198-0327

autor

Draczyński Zbigniew

• Lodz University of Technology, Faculty of Material Technologies and Textile Design 116 Żeromskiego Str., 90-924 Łódź, Poland

• https://orcid.org/0000-0002-4036-0559

autor

Madej Kiełbik Longina

• Łukasiewicz Research Network - Łódź Institute of Technology, 19/27 M. Skłodowskiej-Curie Str., 90 570 Łódź, Poland

• https://orcid.org/0000-0002-0610-3356

autor

Jagodzińska Sylwia

• Łukasiewicz Research Network - Łódź Institute of Technology, 19/27 M. Skłodowskiej-Curie Str., 90 570 Łódź, Poland

• https://orcid.org/0000-0001-6505-6951

autor

Borkowski Dominik

• Łukasiewicz Research Network - Łódź Institute of Technology, 19/27 M. Skłodowskiej-Curie Str., 90 570 Łódź, Poland
• Lodz University of Technology, Faculty of Material Technologies and Textile Design 116 Żeromskiego Str., 90-924 Łódź, Poland

• https://orcid.org/0000-0001-7096-8090

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