Effect of water and soil microbiota on structure and properties of PLA fiber composites
Nonwoven fibers from biodegradable polymers such as polylactide and natural rubber were obtained by electrospinning. The fiber morphology was studied by optical microscopy. Thermal properties were studied by differential scanning calorimetry. It is shown that after the action of water for 180 days,...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/13/e3sconf_ersme2023_01049.pdf |
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| author | Tertyshnaya Y. Khramkova A. Podzorova M. |
| author_facet | Tertyshnaya Y. Khramkova A. Podzorova M. |
| author_sort | Tertyshnaya Y. |
| collection | DOAJ |
| description | Nonwoven fibers from biodegradable polymers such as polylactide and natural rubber were obtained by electrospinning. The fiber morphology was studied by optical microscopy. Thermal properties were studied by differential scanning calorimetry. It is shown that after the action of water for 180 days, the glass transition temperature is not observed on DSC thermograms. The degree of crystallinity of all samples increases by 9- 12% depending on the composition. After exposure to soil, the glass transition temperature changes little for pure PLA and a sample containing 5 wt.% of natural rubber and decreases by 2-3 оC in samples with a rubber content of 10 and 15 wt.%. The melting point of PLA fiber increases by 2 оC during degradation in the soil, and in fibrous composites it decreases by 1.5 оC. Changes in the values of the degree of crystallinity have a similar tendency. Thus, under the same temperature and time conditions, water has a stronger effect compared to soil on the structure of nonwoven fibrous materials PLA/NR. |
| first_indexed | 2024-04-09T19:06:54Z |
| format | Article |
| id | doaj.art-58cb33e4879e4293ac3ff703173d8991 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-09T19:06:54Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-58cb33e4879e4293ac3ff703173d89912023-04-07T08:57:40ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013760104910.1051/e3sconf/202337601049e3sconf_ersme2023_01049Effect of water and soil microbiota on structure and properties of PLA fiber compositesTertyshnaya Y.0Khramkova A.1Podzorova M.2Emanuel Institute of Biochemical Physics, Russian Academy of SciencesPolitecnico di MilanoEmanuel Institute of Biochemical Physics, Russian Academy of SciencesNonwoven fibers from biodegradable polymers such as polylactide and natural rubber were obtained by electrospinning. The fiber morphology was studied by optical microscopy. Thermal properties were studied by differential scanning calorimetry. It is shown that after the action of water for 180 days, the glass transition temperature is not observed on DSC thermograms. The degree of crystallinity of all samples increases by 9- 12% depending on the composition. After exposure to soil, the glass transition temperature changes little for pure PLA and a sample containing 5 wt.% of natural rubber and decreases by 2-3 оC in samples with a rubber content of 10 and 15 wt.%. The melting point of PLA fiber increases by 2 оC during degradation in the soil, and in fibrous composites it decreases by 1.5 оC. Changes in the values of the degree of crystallinity have a similar tendency. Thus, under the same temperature and time conditions, water has a stronger effect compared to soil on the structure of nonwoven fibrous materials PLA/NR.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/13/e3sconf_ersme2023_01049.pdfbiodegradable polymersnonwoven fiberspolylactidenatural rubbersoil microbiota |
| spellingShingle | Tertyshnaya Y. Khramkova A. Podzorova M. Effect of water and soil microbiota on structure and properties of PLA fiber composites E3S Web of Conferences biodegradable polymers nonwoven fibers polylactide natural rubber soil microbiota |
| title | Effect of water and soil microbiota on structure and properties of PLA fiber composites |
| title_full | Effect of water and soil microbiota on structure and properties of PLA fiber composites |
| title_fullStr | Effect of water and soil microbiota on structure and properties of PLA fiber composites |
| title_full_unstemmed | Effect of water and soil microbiota on structure and properties of PLA fiber composites |
| title_short | Effect of water and soil microbiota on structure and properties of PLA fiber composites |
| title_sort | effect of water and soil microbiota on structure and properties of pla fiber composites |
| topic | biodegradable polymers nonwoven fibers polylactide natural rubber soil microbiota |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/13/e3sconf_ersme2023_01049.pdf |
| work_keys_str_mv | AT tertyshnayay effectofwaterandsoilmicrobiotaonstructureandpropertiesofplafibercomposites AT khramkovaa effectofwaterandsoilmicrobiotaonstructureandpropertiesofplafibercomposites AT podzorovam effectofwaterandsoilmicrobiotaonstructureandpropertiesofplafibercomposites |