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dc.contributor.author | Dolçà, Celia | es_ES |
dc.contributor.author | Fages, Eduardo | es_ES |
dc.contributor.author | Gonga, Eloi | es_ES |
dc.contributor.author | Garcia-Sanoguera, David | es_ES |
dc.contributor.author | Balart, Rafael | es_ES |
dc.contributor.author | Quiles-Carrillo, Luis | es_ES |
dc.date.accessioned | 2024-06-06T18:16:14Z | |
dc.date.available | 2024-06-06T18:16:14Z | |
dc.date.issued | 2022-01 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/204774 | |
dc.description.abstract | [EN] Biobased HDPE (bioHDPE) was melt-compounded with different percentages (2.5 to 40.0 wt.%) of short hemp fibers (HF) as a natural reinforcement to obtain environmentally friendly wood plastic composites (WPC). These WPC were melt-compounded using a twin-screw extrusion and shaped into standard samples by injection molding. To improve the poor compatibility between the high non-polar BioHDPE matrix and the highly hydrophilic lignocellulosic fibers, a malleated copolymer, namely, polyethylene-graft-maleic anhydride (PE-g-MA), was used. The addition of short hemp fibers provided a remarkable increase in the stiffness that, in combination with PE-g-MA, led to good mechanical performance. In particular, 40 wt.% HF drastically increased the Young¿s modulus and impact strength of BioHDPE, reaching values of 5275 MPa and 3.6 kJ/m2, respectively, which are very interesting values compared to neat bioHDPE of 826 MPa and 2.0 kJ/m2. These results were corroborated by dynamic mechanical thermal analysis (DMTA) results, which revealed a clear increasing tendency on stiffness with increasing the fiber loading over the whole temperature range. The crystal structure was not altered by the introduction of the natural fibers as could be seen in the XRD patterns in which mainly the heights of the main peaks changed, and only small peaks associated with the presence of the fiber appeared. Analysis of the thermal properties of the composites showed that no differences in melting temperature occurred and the non-isothermal crystallization process was satisfactorily described from the combined Avrami and Ozawa model. As for the thermal degradation, the introduction of HF resulted in the polymer degradation taking place at a higher temperature. As for the change in color of the injected samples, it was observed that the increase in fiber generated a clear modification in the final shades of the pieces, reaching colors very similar to dark woods for percentages higher than 20% HF. Finally, the incorporation of an increasing percentage of fibers also increased water absorption due to its lignocellulosic nature in a linear way, which drastically improved the polarity of the composite. | es_ES |
dc.description.sponsorship | Project with grant number PID2020-116496RB-C22 funded by the Ministry of Science and Innovation MCIN/AEI/10.13039/501100011033 and grant number AICO/2021/025 funded by Generalitat Valenciana. European Regional Development Fund (ERDF) from the European Union for co-funding the project NABITEX Innovative technical textiles based on SUDOE natural fibers to be applied in Habitat Sector through the Interreg SUDOE Program (SOE2/P1/P0524) and CDTI (Centro para el Desarrollo Tecnológico Industrial) within the framework of grants for Technological Centres of Excellence Cervera (CER-20211013). | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | MDPI AG | es_ES |
dc.relation.ispartof | Polymers | es_ES |
dc.rights | Reconocimiento (by) | es_ES |
dc.subject | BioHDPE | es_ES |
dc.subject | Green composites | es_ES |
dc.subject | Hemp short natural fibers | es_ES |
dc.subject | Non-isothermal crystallization | es_ES |
dc.subject | Mechanical properties | es_ES |
dc.subject.classification | CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA | es_ES |
dc.title | The Effect of Varying the Amount of Short Hemp Fibers on Mechanical and Thermal Properties of Wood Plastic Composites from Biobased Polyethylene Processed by Injection Molding | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.3390/polym14010138 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116496RB-C22/ES/OBTENCION DE NANOCOMPOSITES DE ORIGEN BIO A PARTIR DE RESIDUOS LIGNOCELULOSICOS PARA SU USO EN FILMS MULTICAPA/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/CDTI//CER-20211013/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/FEDER//SOE2%2FP1%2FP0524//NABITEX Innovative technical textiles based on SUDOE natural fibers to be applied in Habitat Sector/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/GVA// AICO%2F2021%2F025/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Escuela Politécnica Superior de Alcoy - Escola Politècnica Superior d'Alcoi | es_ES |
dc.description.bibliographicCitation | Dolçà, C.; Fages, E.; Gonga, E.; Garcia-Sanoguera, D.; Balart, R.; Quiles-Carrillo, L. (2022). The Effect of Varying the Amount of Short Hemp Fibers on Mechanical and Thermal Properties of Wood Plastic Composites from Biobased Polyethylene Processed by Injection Molding. Polymers. 14(1). https://doi.org/10.3390/polym14010138 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.3390/polym14010138 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 14 | es_ES |
dc.description.issue | 1 | es_ES |
dc.identifier.eissn | 2073-4360 | es_ES |
dc.identifier.pmid | 35012159 | es_ES |
dc.identifier.pmcid | PMC8747228 | es_ES |
dc.relation.pasarela | S\452682 | es_ES |
dc.contributor.funder | Generalitat Valenciana | es_ES |
dc.contributor.funder | Agencia Estatal de Investigación | es_ES |
dc.contributor.funder | European Regional Development Fund | es_ES |
dc.contributor.funder | Centro para el Desarrollo Tecnológico Industrial | es_ES |
dc.subject.ods | 09.- Desarrollar infraestructuras resilientes, promover la industrialización inclusiva y sostenible, y fomentar la innovación | es_ES |
dc.subject.ods | 12.- Garantizar las pautas de consumo y de producción sostenibles | es_ES |