TY - JOUR ID - 108488 TI - Modeling and Optimization of Mechanical Properties of PA6/NBR/Graphene Nanocomposite Using Central Composite Design JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Nakhaei, M. R. AU - Naderi, G. AD - Faculty of Mechanics and Energy, Shahid Beheshti University, Tehran, Iran AD - Iran Polymer and Petrochemical Institute, Tehran, Iran Y1 - 2020 PY - 2020 VL - 33 IS - 9 SP - 1803 EP - 1810 KW - Central composite design KW - Mechanical properties KW - Nanocomposite KW - PA6/NBR/Graphene KW - thermal properties DO - 10.5829/ije.2020.33.09c.15 N2 - Thermoplastic elastomer of PA6/NBR reinforced by various nanoparticles have wide application in many industries. The properties of these materials depend on PA6, NBR, and nanoparticle amount and characteristics. In this study, the simultaneous effect of NBR and graphene nanoparticle content on mechanical, thermal properties, and morphology of PA6/NBR/Graphene nanocomposites investigated by Central Composite Design (CCD). Thermal properties and morphology of PA6/NBR/Graphene nanocomposites were investigated by Differential Scanning Calorimetry (DSC), X-Ray Diffraction (XRD), and Scanning Electron Microscopy (SEM). The results indicate that a small percentage of error between predicted values of mechanical properties and experimental values was achieved. An increase in graphene content have a positive impact on the tensile strength but increasing the NBR phase has the opposite effect. A maximum tensile strength of 35.3 MPa for PA6/NBR/Graphene nanocomposites was obtained at the NBR and graphene content of 20 %wt and 1.5 %wt, respectively. The thermal behavior of the PA6/NBR blend improved with addition graphene. With the addition of 1.5 % graphene content to PA6/NBR blend, the crystallization temperature and melting temperature increased from 192.1 to 196.2 °C and 221.1 to 223.4 °C, respectively. UR - https://www.ije.ir/article_108488.html L1 - https://www.ije.ir/article_108488_e924dd4bfc05c0971d6c95de2b872df6.pdf ER -