Fernández Armada, DavidGonzález-Rodríguez, M. VictoriaCosta, PedroLanceros-Mendez, SenentxuArias-Ferreiro, GorettiAbad, María-JoséAres-Pernas, Ana2022-06-292022-06-292022-08D. Fernández Armada, V. González Rodríguez, P. Costa, S. Lanceros-Mendez, G. Arias-Ferreiro, M.-J. Abad, A. Ares-Pernas, Polyethylene/ poly(3-hydroxybutyrate-co-3-hydroxyvalerate /carbon nanotube composites for eco-friendly electronic applications, Polymer Testing. 112 (2022) 107642. https://doi.org/10.1016/j.polymertesting.2022.1076420142-9418http://hdl.handle.net/2183/31032Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG[Abstract] The development of new conducting composites, for electric and electronic applications, with lower environmental impact is a relevant issue. Blending poly (3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) with high-density polyethylene (HDPE), 50/50 HDPE/PHBV, and multiwalled carbon nanotubes (MWCNTs) (3.5 and 7.5%), represents a suitable strategy for improving sustainability of conducting polymers while maintaining procesability and functional performance. The study focuses on thermal, mechanical, morphological, rheological, electrical properties and EMI shielding effectiveness. Composites show a morphology in which MWCNTs remains in HDPE phase. Without compatibilizer, only the composite with 7.5% of MWCNTs achieves a conductivity value suitable for reaching 20 dB of electromagnetic shielding. In composites with PE grafted with maleic anhydride (0.5%) the electrical conductivity substantially increased, achieving a suitable EMI shielding level with lower proportion of nanotubes (5 wt%). Summarizing, composites with reduced environmental impact, suitable for EMI shielding applications, have been obtained optimizing the MWCNTs amount and their dispersion.engAttribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)https://creativecommons.org/licenses/by-nc-nd/4.0/PHBVPolymer compositesCarbon nanotubesElectrical conductivityRheologyEMIjournal articleopen access10.1016/j.polymertesting.2022.107642