City Research Online

Abstract

Through this paper, We introduce a novel, zero-waste, and recycling plastic waste solution which is fully scalable to produce Graphene nanoplatelets/Barium titanate (GNP/BaTiO3) Polymer Nanocomposite Fibrils that can be used in a myriad of engineering applications. We performed a detailed investigation to systematically evaluate the compatible and noncompatible recycled polypropylene (PP)/Polyethylene terephthalate (PET) blends in combination with functional (electrical, piezoelectric and dielectric) materials for in-situ fibril production. The nanocomposite fibrils made from recycled polypropylene, polyethylene terephthalate, and GNPs/BaTiO3 with high aspect-ratio disparity (400:1) were produced with added value in terms of significantly enhanced electrical, thermomechanical, and electromagnetic interference shielding characteristics. Single screw extrusion was utilized to fabricate the nanocomposite fibrils with the in-situ fibril morphology of polyethylene terephthalate and GNPs/BaTiO3 exhibiting improved electrical conductivity. It was demonstrated that such fibril morphology would restrict the chain mobility of polymer molecules, which ultimately benefited improved viscosity and strain energy. Moreover, the study demonstrated a positive reinforcement effect from the utilization of polyethylene terephthalate fibrils and GNPs/BaTiO3 in a polypropylene matrix, dominated by the high aspect ratio, stiffness, and thermal stability of GNPs/BaTiO3. Furthermore, it was observed that the mechanical properties and tension-bearing capacity of the polypropylene were significantly improved by the incorporation of the in-situ fibril polyethylene terephthalate. The study also demonstrated that the protection of the remanufactured nanocomposites against electromagnetic interference has been significantly improved with the increasing GNPs/BaTiO3 content and the morphological transition from spherical to fibril-shaped polyethylene terephthalate.

Publication Type:	Article
Additional Information:	© 2023 The Authors. Advanced Sustainable Systems published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Publisher Keywords:	Graphene nanoplatelets, barium titanate, nanocomposite fibril, Thermal stability, Electromagnetic interference shielding, Multifunctional composite
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments:	School of Science & Technology > Engineering
SWORD Depositor:	Symplectic Administrator

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