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dc.contributor.authorTarrés, Quim-
dc.contributor.authorSoler, Jordi-
dc.contributor.authorRojas Sola, José Ignacio-
dc.contributor.authorOliver Ortega, Helena-
dc.contributor.authorJulián, Fernando-
dc.contributor.authorEspinach, F. Xavier-
dc.contributor.authorMutjé, Pere-
dc.contributor.authorDelgado Aguilar, Marc-
dc.identifier.citationTarrés, Q.; Soler, J.; Rojas-Sola, J.I.; Oliver-Ortega, H.; Julián, F.; Espinach, F.X.; Mutjé, P.; Delgado-Aguilar, M. Flexural Properties and Mean Intrinsic Flexural Strength of Old Newspaper Reinforced Polypropylene Composites. Polymers 2019, 11, 1244.
dc.description.abstractNewspapers have a limited lifespan, and therefore represent a focus of used and disposed paper. While these refuses have a considerable value and can be easily recycled, a considerable fraction ends in landfill. The authors show the possibility of adding value to used newspaper and enlarge its value chain. Old newspaper incorporates a high amount of wood fibers able to be used as reinforcement. On the other hand, this material also incorporates inks and other components inherent to newspaper production. In this work, the authors disintegrate old newspaper to recover and individualize wood fibers. A morphological analysis showed that the recovered fibers had aspect ratios higher than 10, revealing, a priori, their strengthening capabilities. Thereupon, these fibers were compounded with polypropylene at different contents, ranging from 20% to 50% w/w. It is well known that wood fibers are hydrophilic, while polyolefin are hydrophobic. This is a drawback to obtaining strong interfaces. Thus, two sets of composites were produced, with and without a coupling agent. The results showed that uncoupled composites increased the flexural strength of the matrix but reached an equilibrium point from which adding more reinforcement did not changer the flexural strength. On the other hand, the coupled composites showed a linear increase of the flexural strength against the reinforcement content. The flexural moduli of the coupled and uncoupled composites were very similar and evolved linearly with the reinforcement content.es_ES
dc.description.sponsorshipThis research was funded by the University of Girona.es_ES
dc.publisherMultidisciplinary Digital Publishing Institutees_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subjectnatural fiberses_ES
dc.subjectrecycled paperes_ES
dc.subjectflexural strengthes_ES
dc.titleFlexural Properties and Mean Intrinsic Flexural Strength of Old Newspaper Reinforced Polypropylene Compositeses_ES
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