| Issue |
E3S Web Conf.
Volume 413, 2023
XVI International Scientific and Practical Conference “State and Prospects for the Development of Agribusiness - INTERAGROMASH 2023”
|
|
|---|---|---|
| Article Number | 02019 | |
| Number of page(s) | 8 | |
| Section | Agricultural Engineering and Mechanization | |
| DOI | https://doi.org/10.1051/e3sconf/202341302019 | |
| Published online | 11 August 2023 | |
Aging of PLA/NR electrospun fibers under the influence of UV-irradiation, water and soil environment
1 Bauman Moscow Technical University, ul. Baumanskaya 2-ya, 5/1, 105005 Moscow, Russia
2 Plekhanov Russian University of Economics, 36 Stremyanny per., 115054 Moscow, Russia
3 Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygina str., 119991 Moscow, Russia
4 Federal Scientific Agroengineering Center VIM, 1st Institutskiy proezd, 5, 109428 Moscow, Russia
5 Politecnico di Milano, Piazza Leonardo da Vinci, 32 20133 Milan, Italy
* Corresponding author: mariapdz@mail.ru
Research in the field of the influence of environmental factors on composite materials based on polyesters is very relevant, as such materials are gaining more and more use in various industries and agriculture. This paper presents the results of the influence of UV-irradiation, water and soil on PLA/NR nonwoven fibers. The content of NR was 5-15 wt.%. It was found that the presence of NR over 10 wt. % inhibits photolysis. After 300 hours of irradiation, the melting point of 100% PLA decreases more significantly than in composites with NR. The IR-spectroscopy method confirmed the occurrence of the process of photooxidative degradation in fibrous samples. Biodegradation in soil proceeds more actively in PLA/NR fibrous composites than in pure PLA. Apparently, an increase in the proportion of the amorphous phase in the composites and the bioavailability of rubber contribute to this process.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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