Investigation of Physical-Mechanical and Thermos Gravimetric (TGA) Characteristics of the Combined Effect of Boron Nitride (BN) and Aluminum Oxide (Al2O3) in Polyethylene Terephthalate (PET) Matrix.

Abstract

Composite materials, particularly those incorporating polymers, have gained significant attention in recent years due to their unique combination of properties that can be tailored for specific applications. This research investigates the physical and mechanical characteristics of a composite material composed of matrix Polyethylene Terephthalate (PET), and reinforcement of Boron Nitride (BN), and Aluminum Oxide (Al₂O₃). The incorporation of these distinct components aims to synergize their individual properties, resulting in a composite material with enhanced performance for various engineering applications. The manufacturing process involved melt blending PET with varying concentrations of BN and Al₂O₃ by injection molding to produce test specimens as per ASTM standards. The physical and mechanical properties of the composite, including density, thermal conductivity, and morphological features, were analyzed through techniques such as optical microscopy and density measurements. Mechanical properties, such as tensile strength, percentage elongation, and impact resistance, were analyzed. Tensile testing revealed the effects of filler content on the strength, elasticity, and elongation of the material, Impact testing assessed the composite's ability to withstand sudden and dynamic loads. Furthermore, the thermal stability and degradation behavior of the PET+BN+Al₂O₃ composite were investigated through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). These thermal analyses aimed to elucidate the material's performance under elevated temperatures and its potential applications in environments with varying thermal conditions. The results of this study contribute valuable insights into the synergistic effects of combining PET with BN and Al₂O₃, providing a comprehensive understanding of the physical and mechanical properties of the composite material. The findings may pave the way for the development of advanced materials with tailored properties for specific engineering applications, such as lightweight structural components, heat-resistant materials, or impact-resistant surfaces.