Naslov
Some effects of γ-radiation on poly(lactic acid) filaments

Autori
Vidotto, Monica ; Žauhar, Gordana ; Mihaljević, Branka ; Valić, Srećko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Book of Abstracts / Biliškov, Nikola - Zagreb : Institut Ruđer Bošković, 2019, 111-111

ISBN
978-953-7941-32-1

Skup
Solid State Science and Research Meeting

Mjesto i datum
Zagreb, Hrvatska, 27.06.2019. - 29.06.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Recenziran

Ključne riječi
Poly(lactic acid) ; PLA, γ-radiation ; structure

Sažetak
Poly(lactic acid) (PLA) is a biodegradable polymer that has a wide application from food packaging to medical implants [1]. In this study, commercially available 3D printing (2.85 mm) PLA filaments was used to investigate the influence of high energy radiation on structural parameters. Samples were irradiated in a 60Co γ-source at room temperature in the presence of air, using a dose rate of 7, 94 Gy/s. Total irradiation doses were varied from 25 kGy to 300 kGy. Electron spin resonance (ESR), a powerful tool in radical detection, was used as the principal technique. FTIR spectroscopy was applied to investigate structural changes caused by irradiation, while the changes in mechanical behavior were investigated on a testing machine. Changes induced by samples irradiation, observed by ESR and FTIR spectroscopy as well as by mechanical measurements, will be reported and discussed, based on the results found in the literature [2, 3]. [1] L. T. Sin, A. R. Rahmat, W. A. W. A. Rahman (2012). Polylactic Acid: PLA Biopolymer Technology and Applications, Elsevier, Amsterdam, 2012. [2] P. Nugroho, H. Mitomo, F. Yoshii, T. Kume, Polym. Degrad. Stabil. 72 (2001) 337-343. [3] H. Y. Lin, S. Y. Tsai, H. T. Yu, C. P. Lin., J. Polym. Environ. 26 (2018) 122-131.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija, Kemijsko inženjerstvo

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