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Ageing effect on morphology, thermal and mechanical properties of impact modified LDPE/PP blends from virgin and recycled materials

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Ageing effect on morphology, thermal and mechanical properties of impact modified LDPE/PP blends from virgin and recycled materials

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Nombre: Irena Borovanska;Rumen ...
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dc.contributor.author Borovanska, Irena es_ES
dc.contributor.author Krastev, Rumen es_ES
dc.contributor.author Benavente, Rosario es_ES
dc.contributor.author Monleón Pradas, Manuel es_ES
dc.contributor.author Vallés Lluch, Ana es_ES
dc.contributor.author Samichov, Vasil es_ES
dc.contributor.author Iliev, Mario es_ES
dc.date.accessioned 2015-06-11T08:19:12Z
dc.date.available 2015-06-11T08:19:12Z
dc.date.issued 2014-08
dc.identifier.issn 0095-2443
dc.identifier.uri http://hdl.handle.net/10251/51529
dc.description.abstract An experimental study was conducted to investigate the influence of ageing on the morphological, thermal and mechanical properties of virgin and two types of recycled (from technological and postconsumer wastes) modified polyolefin blends. Immiscible blends of virgin low-density polyethylene (LDPE) and polypropylene (PP) in weight ratio 1:1 were modified with the ethylene–propylene diene monomer (EPDM) rubber impact modifier. The efficiency of modification was investigated as a function of modifier content in the range from 7 to 15 wt%. The blends were prepared by extrusion using a corotating twin screw extruder Brabender DSE35/ 17D at melt temperature in the range from 150 to 200C and a screw speed of 20 rpm. Compression-molded samples were subjected to natural and accelerated ageing and characterized by differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and mechanical testing. The experiments show that the ageing processdeteriorates the mechanical properties of the PP/LDPE blends, and this is more clearly expressed in the blends of virgin material. The results show that the presence of the EPDM modifier delays the process of ageing in PP/ LDPE blends. The DSC and SEM investigations confirm the structural changes in the examined compositions. es_ES
dc.description.sponsorship This work was financially supported by the Bulgarian Ministry of Education and Science Contract No. BG051PO001/07/3.3-02/51 and Project No. DTK 02/7-2010. en_EN
dc.language Inglés es_ES
dc.publisher SAGE Publications (UK and US) es_ES
dc.relation.ispartof Journal of Elastomers and Plastics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Polyolefin blends es_ES
dc.subject Ageing es_ES
dc.subject Modification es_ES
dc.subject Thermal properties es_ES
dc.subject Mechanics es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Ageing effect on morphology, thermal and mechanical properties of impact modified LDPE/PP blends from virgin and recycled materials es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1177/0095244312469959
dc.relation.projectID info:eu-repo/grantAgreement/COST//FA0904/EU/Eco-sustainable food packaging based on polymer nanomaterials/ es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Centro de Biomateriales e Ingeniería Tisular - Centre de Biomaterials i Enginyeria Tissular es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada es_ES
dc.description.bibliographicCitation Borovanska, I.; Krastev, R.; Benavente, R.; Monleón Pradas, M.; Vallés Lluch, A.; Samichov, V.; Iliev, M. (2014). Ageing effect on morphology, thermal and mechanical properties of impact modified LDPE/PP blends from virgin and recycled materials. Journal of Elastomers and Plastics. 46(5):427-447. doi:10.1177/0095244312469959 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1177/0095244312469959 es_ES
dc.description.upvformatpinicio 427 es_ES
dc.description.upvformatpfin 447 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 46 es_ES
dc.description.issue 5 es_ES
dc.relation.senia 255251
dc.identifier.eissn 1530-8006
dc.contributor.funder European Cooperation in Science and Technology es_ES
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