Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/92897
Author(s): Maria J. Ferreira
Manuel F. Almeida
Fernanda Freitas
Title: Formulation and characterization of leather and rubber wastes composites
Issue Date: 2011
Abstract: Residues from footwear roughing and carding operationsrepresent 515% (w/w) of the solid wastes generatedby shoe-making companies. These wastes aremainly composed by chromium tanned leather and solematerials, and are mostly land filled. Sometimes leachingtests show these wastes as hazardous due to chromiumin the leachate. This work aims at a more sustainableoption for these wastes by recycling them instyrene butadiene rubber (SBR) and acrylonitrile butadienerubber (NBR). Thus, they were charged with: (i)1 mm leather waste fibers in the range of 1025 partsper hundred parts of rubber (phr); and (ii) leather andsoles industrial carding and roughing wastes in therange of 20100 phr. The leather waste fibers-rubbercomposites tear strength is increased till 25 phr andboth tension and elongation at break decrease withinthe acceptable range till 12.5 phr for SBR and 15 phrfor NBR. In the case of leather and sole carding androughing wastes, composites tear strength increasestill 100 phr, and tension and elongation decrease withinthe acceptable range till 20 phr. The composite materialsat the end of their life cycle may be consideredinert or non-hazardous wastes.
Subject: Engenharia de materiais, Tecnologia da reciclagem, Engenharia dos materiais
Materials engineering, Recycling technology, Materials engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia dos materiais
Engineering and technology::Materials engineering
URI: https://repositorio-aberto.up.pt/handle/10216/92897
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/UID/EQU/00511/2013 - POCI-01-0145-FEDER-006939/Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia/LEPABE
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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