Impregnation of Poly(lactic Acid) with Polyphenols of Plant Origin

• Autorzy: Latos-Brozio Malgorzata , Masek Anna

Identyfikatory

DOI

10.5604/01.3001.0013.7308

Warianty tytułu

PL

Impregnacja poli(kwasu mlekowego) (PLA) polifenolami pochodzenia roślinnego

• Języki publikacji: EN

Abstrakty

EN

The aim of the research was the solvent-based impregnation of poly(lactic acid) (PLA) with polyphenols of plant origin. The process is a scientific novelty because quercetin, rutin, xanthone and green tea extract had not been previously used to stabilise PLA as a result of the solvent-based impregnation of a polymer. As part of the work, the extruded poly(lactic acid) was impregnated with ethanol solutions of polyphenols. Samples after impregnation were subjected to tests: determination of mechanical properties, differential scanning calorimetry, melt flow index and SEM microscopy. In addition, the properties of the samples, such as the Vicat softening temperature and change in colour, before and after controlled weathering as well as thermal and UV aging were investigated. On the basis of the results presented, the effectiveness of the impregnation of poly(lactic acid) with natural compounds was confirmed as a new method of stabilisation of the biodegradable polyester selected.

PL

Celem badań była rozpuszczalnikowa impregnacja poli(kwasu mlekowego) (PLA) z zastosowaniem polifenoli pochodzenia roślinnego. Proces jest nowością naukową, ponieważ kwercetyna, rutyna, ksanton i ekstrakt zielonej herbaty nie były wcześniej stosowane do stabilizacji PLA w procesie impregnacji polimeru. W ramach pracy wytłoczyny poli(kwasu mlekowego) impregnowano etanolowymi roztworami polifenoli. Próbki po impregnacji poddano badaniom: określeniu właściwości mechanicznych, różnicowej kalorymetrii skaningowej, wskaźnikowi szybkości płynięcia i mikroskopii SEM. Ponadto zbadano właściwości próbek, takie jak temperatura mięknienia Vicata i zmiana koloru, przed i po kontrolowanym starzeniu klimatycznym, termicznym i wywołanym promieniowaniem UV. Na podstawie przedstawionych wyników potwierdzono skuteczność impregnacji poli (kwasu mlekowego) związkami naturalnymi jako nową metodę stabilizacji wybranego biodegradowalnego poliestru.

Słowa kluczowe

EN

poly(lactic acid); PLA; polyphenol; antioxidants; impregnation

PL

poli(kwas mlekowy); PLA; polifenol; przeciwutleniacze; impregnacja

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2020
• Tom: Vol. 28, no. 2 (140)
• Strony: 15--20
• Opis fizyczny: Bibliogr. 33 poz., rys., tab.

Twórcy

autor

Latos-Brozio Malgorzata

• Lodz University of Technology, Institute of Polymer and Dye Technology, Faculty of Chemistry, 90-924 Lodz, ul. Stefanowskiego 12/16, Poland

autor

Masek Anna

• Lodz University of Technology, Institute of Polymer and Dye Technology, Faculty of Chemistry, 90-924 Lodz, ul. Stefanowskiego 12/16, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).