Research Information System
JOURNAL OF APPLIED POLYMER SCIENCE, vol.140, no.47, 2023 (SCI-Expanded)
In order to evaluate the effect of graphitic carbon nitride (g-C3N4) incorporation on the physical properties of thermoplastic polyester elastomer (TPEE) composites using a comparative approach, the composite films were prepared by the solution mixing method and solvent evaporation methods. For this purpose, the g-C3N4 nanoparticles were synthesized by direct thermal condensation reaction of melamine and characterized by FTIR, SEM, XRD, BET, and TGA, respectively. The diameters of the g-C3N4 particles ranged from & SIM;90 to 480 nm and the g-C3N4 exhibited a high thermal stability up to 570 & DEG;C, which was attributed to the robust heptazine-based structure. The morphology, structure, thermal stability, solid-state viscoelastic behavior, and friction coefficient of the TPEE composites were evaluated depending on the composition. The results showed that the g-C3N4 nanoparticles improved the thermal stability and reduced the friction coefficient of the TPEE films. It was also found that g-C3N4 addition into the TPEE matrix significantly reduced the permanent deformation in the solid state. The findings indicate that low-cost g-C3N4 nanoparticles can be used as an effective additive to enhance the performance of TPEE films in various applications. Preparation of TPEE-gC3N4 composite films by solution mixing method and some physical properties of the graphitic carbon nitride and the film samples.image