2026-04-17T17:16:16Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/3854572026-02-07T10:15:14Zcom_2072_1033col_2072_452950

Valorization strategy for leather waste as filler for high-density polyethylene composites: analysis of the thermal stability, insulation properties and chromium leaching Kiliç, Eylem Oliver Ortega, Helena Tarrés Farrés, Joaquim Agustí Delgado Aguilar, Marc Fullana Palmer, Pere Puig Vidal, Rita Universitat Politècnica de Catalunya. Doctorat en Enginyeria Ambiental Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus Reciclatge (Residus, etc.) Leather waste HDPE Composites Thermal properties Leaching Recycling (Waste, etc.) Leather waste (BF) and high-density polyethylene (HDPE) were compounded in a lab scale internal mixer and processed by means of injection molding. In this study, leather waste and HDPE composites were characterized by instrumental techniques such as differential scanning calorimetry (DSC), thermo-gravimetric Analysis (TGA), and Fourier transform infrared spectroscopy (FTIR). Physical integrity of composites against chemical exposure and chromium-leaching properties of the composites were also investigated. This study shows that the incorporation of 30% leather waste fiber into HDPE composites decreases the thermal conductivity of the composite samples by 17% in comparison to that of neat HDPE samples. Composites showed no thermal degradation during processing cycle. Strong interfacial bonding between leather waste and polymer results in comparable low-leachate levels to maximum allowed concentration for nonhazardous waste, and good chemical resistance properties. The BF/HDPE composites could be a promising low-cost alternative in industrial application areas of HDPE, where high-mechanical strength and low-thermal conductivity is required. This research was funded by the Spanish Ministry of Science and Innovation, project KAIROS-BIOCIR (PID2019-104925RB-C32). Peer Reviewed Postprint (published version) 2021-10 Article Kiliç, E. [et al.]. Valorization strategy for leather waste as filler for high-density polyethylene composites: analysis of the thermal stability, insulation properties and chromium leaching. "Polymers", Octubre 2021, vol. 13, núm. 19, article 3313. 2073-4360 https://hdl.handle.net/2117/385457 10.3390/polym13193313 eng https://www.mdpi.com/2073-4360/13/19/3313 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104925RB-C32/ES/ESTRATEGIAS RELACIONADAS CON LA CIRCULARIDAD Y LA EFICIENCIA DE LOS RECURSOS DE SISTEMAS ALIMENTARIOS/ http://creativecommons.org/licenses/by/4.0/ Open Access Attribution 4.0 International application/pdf Multidisciplinary Digital Publishing Institute (MDPI)