The addition of MoO$_3$ or SiO$_2$ nano-/microfillers thermally stabilized and mechanically reinforce the PVDF-HFP/PVP polymer composite thin films

Gradišar Centa, Urška (avtor), Pogačnik Krajnc, Anja (avtor), Slemenik Perše, Lidija (avtor), Šobak, Matic (avtor), Mihelčič, Mohor (avtor)

The properties of thin polymer films are influenced by the size of the fillers, their morphology, the surface properties and their distribution/interaction in the polymer matrix. In this work, thin polymer composite films with MoO$_3$ or SiO$_2$ nano and micro fillers in PVDF-HFP/PVP polymer matrix were successfully fabricated using the solvent casting method. The effects of different types, sizes and morphologies of the inorganic fillers on the crystallization of the PVDF-HFP polymer were investigated, as well as the effects on the thermal and mechanical properties of the composites. Scanning electron microscopy, ATR-FTIR spectroscopy, differential scanning calorimetry, nanoindentation and uniaxial mechanical tests were used for characterization. The results showed that MoO$_3$ nanowires thermally stabilized the polymer matrix, induced crystallization of the PVDF-HFP polymer in all three polymorphs (α-, β-, γ-phase) and formed a geometrical network in the polymer matrix, resulting in the highest elastic moduli, hardness and Young’s modulus.

• Jezik: Angleški jezik
• Ključne besede: polymer composites, crystallization, PVP, PVDF-HFP, mechanical properties, thermal properties
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo ; FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: 12 str.
• Številčenje: Vol. 14, iss. 12, [art. no.] 1603
• PID: 20.500.12556/RUL-166215
• UDK: 620.1:532
• ISSN pri članku: 2079-6412
• DOI: 10.3390/coatings14121603
• COBISS.SI-ID: 220430339
• Datum objave v RUL: 24.12.2024

Gradivo je del revije

• Naslov: Coatings
• Skrajšan naslov: Coatings
• Založnik: MDPI AG
• ISSN: 2079-6412
• COBISS.SI-ID: 523035673

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P2-0264
• Naslov: Trajnostni Polimerni materiali in Tehnologije

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P1-0099
• Naslov: Fizika mehkih snovi, površin in nanostruktur