Investigation on the structure and thermal properties of HDPE/Ta2O5-based nanocomposites
Journal of Elastomers and Plastics, vol.56, no.8, pp.929-941, 2024 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 56 Issue: 8
- Publication Date: 2024
- Doi Number: 10.1177/00952443241289560
- Journal Name: Journal of Elastomers and Plastics
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, ABI/INFORM, Compendex, INSPEC
- Page Numbers: pp.929-941
- Keywords: crystallinity, Nanocomposites, polyethylene, polymer, tantalum nanooxide
- Open Archive Collection: Article
- Azerbaijan State University of Economics (UNEC) Affiliated: Yes
Abstract
This work reports on the influence of tantalum oxide nanoparticles on the structure and thermal properties of HDPE + Ta2O5 based polymer nanocomposites prepared by ex-situ solution casting method. XRD analysis confirmed the orthorhombic structure of Ta2O5 nanoparticles and an increase in the degree of crystallinity of HDPE/Ta2O5 based nanocomposites after the introduction of Ta2O5 into the HDPE matrix. SEM analysis showed that Ta2O5 nanoparticles were distributed over the surface of the sample in a spherical shape. FT-IR analysis confirmed the presence of Ta –O-Ta stretching vibration bands at 557 cm−1, 584 cm−1, 599 cm−1, 614 cm−1 and Ta-O bands at 824 cm−1, 828 cm−1 for HDPE/3-7 wt%Ta2O5 nanocomposites. The results indicate that small amounts of Ta2O5 nanoparticles (3–7 wt.%) introduced into HDPE act as nucleating agents, which enhance the thermal properties of the HDPE/Ta2O5 nanocomposite. Additionally, the properties of the polymer nanocomposite are influenced by both the structural changes in the polymer matrix and the interactions at the nanoparticle-polymer interface.