20.500.12556/RUL-176043 Evaluation of the UV protection properties of para-aramid woven fabrics with various specialty core yarns Para-aramid fibers, known for their remarkable strength and thermal stability, are frequently employed in protective textiles for military and aerospace applications. However, continuous exposure to ultraviolet (UV) radiation can damage their protective characteristics. This study analyzes the ultraviolet protection factor (UPF) and UV transmittance of woven fabrics produced from 30/2 Ne spun para-aramid yarns in the warp and 10 Ne core-spun yarns in the weft. The weft yarns consisted of three sheath fibers—para-aramid, meta-aramid, and polyester—in combination with different specialty core materials. The results show significant differences in UPF before and after UV exposure, with para-aramid sheaths giving the highest improvement. UV exposure caused structural changes in the fibers, resulting in increased UV protection, particularly in fabrics with para-aramid sheaths. This study concludes that the combination of para-aramid fibers with specific core materials significantly enhances UV protection, making them well-suited for applications in high UV exposure environments. para-aramid fibers core-spun yarns ultraviolet protection factor UPF UV resistance protective textiles material degradation paraaramidna vlakna oplaščena preja ultravijolični zaščitni faktor UZF UV odpornost zaščitne tekstilije degradacija materiala true false true Angleški jezik Slovenski jezik Članek v reviji 2025-11-19 10:54:15 2025-11-19 10:54:17 2025-12-17 04:04:41 0000-00-00 00:00:00 2024 0 0 17 str. iss. 21, art. 3090 Vol. 16 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 677 2073-4360 10.3390/polym16213090 213711619 polymers-16-03090-v2.pdf polymers-16-03090-v2.pdf 1 A6F6892264B36152703C3A06871457DA d255eb6ea16c9567a7bf201f688aa8d92f05e1548721dcf51441b6100aad7c6f aae73df9-c52d-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=222103 https://www.mdpi.com/2073-4360/16/21/3090 1 5edbfac1-c52d-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=222102 Naravoslovnotehniška fakulteta 0 0 0