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By: Haydar U. Zaman.
Assist. Prof., Department of Physics, National University of Bangladesh and Institute of Radiation and Polymer Technology, Bangladesh Atomic Energy Commission, Savar, Dhaka, Bangladesh
A highly helpful technique to create novel polymeric materials with ordered and customized features is blending two or more immiscible polymers. The outstanding balance between processability and physical characteristics of thermoplastic polyester elastomers, particularly when using hydrogenated styrene–butadiene copolymer, makes them appealing materials for a variety of applications, including the automotive industry. New opportunities for tailored flexible composites with improved mechanical and chemical properties are made possible by reinforced polymers with zinc oxide. In this work, nano-zinc oxide particles were added to thermoplastic polyester elastomer via direct melt mixing, enhancing its mechanical, thermal, and electrical properties. Thermoplastic polyester elastomer had a particle content ranging from 1 to 5 weight percent. Before melting, zinc oxide nanoparticles were coated with maleated styrene ethylene butylene styrene to improve fine dispersion and surface adherence. We investigate the impact of polymer blends on the mechanical, thermal, and electrical characteristics of blends of thermoplastic polyester elastomers, both in the presence and absence of nanoparticles. The tensile test was used to determine how the concentration of nano-zinc oxide particles affected the yield strength, tensile strength, tensile modulus, and elongation at break. Except for elongation at break, all tensile parameters were enhanced by the nano-zinc oxide particles’ stiff structure. Because of the establishment of chemical bonds, SEM studies reveal substantial interfacial contacts between the thermoplastic polyester elastomer matrix and nano-zinc oxide particles. The overall thermal characteristics of soft and hard parts, the melting temperature, and the thermal stability of nanocomposites are all improved by the inclusion of nano-zinc oxide particles. The mechanical, thermal stability, and electrical properties of a nanocomposite are all improved by adding more nanoparticles
Keywords: Thermoplastic polyester elastomer, nano-ZnO, nanocomposites, mechanical, thermal, and electrical properties.
Citation:
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