20.500.12556/RUL-139058 The effect of PVP on thermal, mechanical, and dielectric properties in PVDF-HFP/PVP thin film In this research, the influences of the addition of PVP to PVDF-HFP polymers and the preparation of thin films using a solvent casting method were studied. The PVDF-HFP and polymer blend PVDF-HFP/PVP thin films with a nanostructured surface were investigated using scanning electron microscopy, differential scanning calorimetry, nanoindentation, and dielectric spectroscopy. The results showed that the PVP formed a dispersed phase (the poorer conductive islands) in the PVDF-HFP polymer matrix, which reduced its mechanical properties. The crystallinity of PVDF-HFP polymer decreased with the addition of PVP by 7.4%, but the PVP induced the formation of the polar β-phase of PVDF-HFP. Therefore, an improved dielectric response is expected, but it was not significantly improved even though the polar β-phase was detected. The contrasting effect was attributed to less conductive PVP islands on the surface of the PVDF-HFP/PVP polymer blend, which decreased its conductivity. polymer blend mechanical properties crystallization polimerna mešanica mehanske lastnosti kristalizacija true false true Angleški jezik Slovenski jezik Članek v reviji 2022-08-29 14:33:40 2022-08-29 14:33:44 2025-11-24 13:30:00 0000-00-00 00:00:00 2022 0 0 10 str. iss. 9, art. 1241 Vol. 12 Aug. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 678:531 2079-6412 10.3390/coatings12091241 119477507 Gradisar_Centa_..._-The_effect_of_PVP_on_thermal,_mechanical,_and_dielectric_properties....pdf Gradisar_Centa_..._-The_effect_of_PVP_on_thermal,_mechanical,_and_dielectric_properties....pdf 1 CB00C01E22669E2B7815E30199E3570B 4b1a9f365f34fbb9e0ba7eb9790123236018586440fe66bfb6e78c98fe72ab3c 2ecec2e9-2797-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159578 https://www.mdpi.com/2079-6412/12/9/1241 1 ca751aaf-2796-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159576 Fakulteta za strojništvo 0 0 0