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Torrefaction of Coffee Husk Flour for the Development of Injection-Molded Green Composite Pieces of Polylactide with High Sustainability

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Torrefaction of Coffee Husk Flour for the Development of Injection-Molded Green Composite Pieces of Polylactide with High Sustainability

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dc.contributor.author Ortiz-Barajas, Diana L. es_ES
dc.contributor.author Arévalo-Prada, Johan A. es_ES
dc.contributor.author Fenollar, Octavio es_ES
dc.contributor.author Rueda-Ordóñez, Yesid J. es_ES
dc.contributor.author Torres Giner, Sergio es_ES
dc.date.accessioned 2021-06-03T03:31:34Z
dc.date.available 2021-06-03T03:31:34Z
dc.date.issued 2020-09 es_ES
dc.identifier.uri http://hdl.handle.net/10251/167195
dc.description.abstract [EN] Coffee husk, a major lignocellulosic waste derived from the coffee industry, was first ground into flour of fine particles of approximately 90 mu m and then torrefied at 250 degrees C to make it more thermally stable and compatible with biopolymers. The resultant torrefied coffee husk flour (TCHF) was thereafter melt-compounded with polylactide (PLA) in contents from 20 to 50 wt% and the extruded green composite pellets were shaped by injection molding into pieces and characterized. Although the incorporation of TCHF reduced the ductility and toughness of PLA, filler contents of 20 wt% successfully yielded pieces with balanced mechanical properties in both tensile and flexural conditions and improved hardness. Contents of up to 30 wt% of TCHF also induced a nucleating effect that favored the formation of crystals of PLA, whereas the thermal degradation of the biopolyester was delayed by more than 7 degrees C. Furthermore, the PLA/TCHF pieces showed higher thermomechanical resistance and their softening point increased up to nearly 60 degrees C. Therefore, highly sustainable pieces were developed through the valorization of large amounts of coffee waste subjected to torrefaction. In the Circular Bioeconomy framework, these novel green composites can be used in the design of compostable rigid packaging and food contact disposables. es_ES
dc.description.sponsorship This research work was funded by the Spanish Ministry of Science and Innovation (MICI), project numbers RTI2018-097249-B-C21 and MAT2017-84909-C2-2-R, and by the Industrial University of Santander. es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation Agencia Estatal de Investigación/IJCI-2016-29675 es_ES
dc.relation info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097249-B-C21/ES/ENVASE ACTIVO MULTICAPA TERMOCONFORMABLE DE ALTA BARRERA BASADO EN BIOECONOMIA CIRCULAR/ es_ES
dc.relation info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-84909-C2-2-R/ES/PROCESADO Y OPTIMIZACION DE MATERIALES AVANZADOS DERIVADOS DE ESTRUCTURAS PROTEICAS Y COMPONENTES LIGNOCELULOSICOS/ es_ES
dc.relation.ispartof Applied Sciences es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject PLA es_ES
dc.subject Coffee husk es_ES
dc.subject Torrefaction es_ES
dc.subject Green composites es_ES
dc.subject Waste valorization es_ES
dc.subject Circular Bioeconomy es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.title Torrefaction of Coffee Husk Flour for the Development of Injection-Molded Green Composite Pieces of Polylactide with High Sustainability es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/app10186468 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Ingeniería de Alimentos para el Desarrollo - Institut Universitari d'Enginyeria d'Aliments per al Desenvolupament es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials es_ES
dc.description.bibliographicCitation Ortiz-Barajas, DL.; Arévalo-Prada, JA.; Fenollar, O.; Rueda-Ordóñez, YJ.; Torres Giner, S. (2020). Torrefaction of Coffee Husk Flour for the Development of Injection-Molded Green Composite Pieces of Polylactide with High Sustainability. Applied Sciences. 10(18):1-17. https://doi.org/10.3390/app10186468 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/app10186468 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 17 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 10 es_ES
dc.description.issue 18 es_ES
dc.identifier.eissn 2076-3417 es_ES
dc.relation.pasarela S\427466 es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES
dc.contributor.funder Universidad Industrial de Santander, Colombia es_ES


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