High Performance Polymers, Journal Year: 2025, Volume and Issue: unknown
Published: March 14, 2025
This study investigates the thermomechanical performance of advanced nanocomposites reinforced with Multi-Walled Carbon Nanotubes (MWCNTs) and Aluminum Nitride nanoparticles (AlN), using two distinct thermosetting resins: polybenzoxazine (PBz) epoxy. PBz was selected for its exceptional thermal stability, radiation shielding, low moisture absorption, mechanical resilience, while epoxy offers benchmark processing efficiency, structural reliability, cost-effectiveness, superior properties. Nanocomposites containing 1 wt.% AlN or MWCNTs were prepared characterized. Thermal properties evaluated through Differential Scanning Calorimetry (DSC) Thermogravimetric Analysis (TGA), behavior assessed Dynamic Mechanical (DMA). The characterized quasi-static tensile creep tests, as well dynamic compression tests Split Hopkinson Pressure Bar (SHPB). results demonstrated significant improvements in both stability strength. Notably, under high strain rates, exhibited a 125.52% increase failure stress compared to neat resin, showed 58.6% improvement. In contrast, provided moderate improvements, PBz-1%AlN epoxy-1%AlN achieving 57.28% 24.4% increases stress, respectively. also highlights inherent advantages over epoxy, PBz-based consistently outperformed their counterparts terms strength, resistance response. comparative analysis synergistic effects nanofillers optimizing nanocomposites. These findings provide crucial insights potential applications high-performance within aerospace, automotive, defense industries, where lightweight materials durability, are critical.
Language: Английский