Szczegóły publikacji
Opis bibliograficzny
The use of sheep wool collected from sheep bred in the Kyrgyz Republic as a component of biodegradable composite material / Piotr SZATKOWSKI, Jakub BARWINEK, Alykeev Ishenbek Zhakypbekovich, Julita Szczecina, Marcin Niemiec, Kinga PIELICHOWSKA, Edyta Molik // Applied Sciences (Basel) [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 2076-3417 . — 2025 — vol. 15 iss. 24 art. no. 13054, s. 1–20. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 19–20, Abstr. — Publikacja dostępna online od: 2025-12-11
Autorzy (7)
- AGHSzatkowski Piotr
- AGHBarwinek Jakub
- Zhakypbekovich Alykeev Ishenbek
- Szczecina Julita
- Niemiec Marcin
- AGHPielichowska Kinga
- Molik Edyta
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 165138 |
|---|---|
| Data dodania do BaDAP | 2026-01-08 |
| Tekst źródłowy | URL |
| DOI | 10.3390/app152413054 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Applied Sciences (Basel) |
Abstract
Biocomposites based on natural fibres represent a promising solution for the circular economy. The aim of this study was to develop and characterise a biodegradable composite based on sheep wool from herds raised in the Kyrgyz Republic and polylactide (PLA 4032D). Composite samples with a wool–PLA ratio of 50:50 were fabricated by thermoforming at a temperature of 168 °C for 30 s (n = 10). Mechanical properties tests were performed (PN-EN ISO 604—compression tests), for impact resistance (Charpy method), differential scanning calorimetry (DSC), and measurements of density and thermal conductivity. Biodegradation samples were subjected to enriched soil conditions for 6 weeks in two variants (with and without irrigation). The results showed that the addition of sheep wool to the PLA matrix significantly increased compressive strength (23.56 ± 5.23 MPa) and impact energy absorption (226.2 ± 23.8 kJ/m2) compared to neat PLA. After biodegradation, a 59% reduction in compressive strength was observed while maintaining an increase in fracture energy, suggesting a change in the failure mechanism. The density (0.27 ± 0.02 g/cm3) and the thermal conductivity (0.127 W/m·K) comparable to polymer foams indicate potential for thermal insulation applications. Microscopy and DSC analysis confirmed complete biodegradation under soil conditions. The developed biocomposite from Kyrgyz sheep wool demonstrates the potential for valorisation of local fibrous waste for biodegradable materials with functional insulation properties.
