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Effect of Sodium Hydroxide Treatments on the Tensile Strength and the Interphase Quality of Hemp Core Fiber-Reinforced Polypropylene Composites

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dc.contributor.author Del Rey, Romina
dc.contributor.author Serrat, Ramon
dc.contributor.author Alba, Jesus
dc.contributor.author Pérez, Ildefonso
dc.contributor.author Mutjé Pujol, Pere
dc.contributor.author Espinach Orús, Xavier
dc.date.issued 2017-08-19
dc.identifier.issn 2073-4360
dc.identifier.uri http://hdl.handle.net/10256/14369
dc.description.abstract The formulation of greener composite materials by substituting glass fibers with natural fibers is a current field of research. If such natural fiber reinforcements come from industrial side streams, as hemp core fibers (HCFs) come from the extraction of hemp strands for the textile industry, an additional advantage can be identified. Nonetheless, such by-product fibers show some drawbacks, such as high lignin contents, which can make it difficult to obtain a good interphase between the fibers and the matrix and to obtain a good fiber individualization. A digestion treatment at different NaOH contents is proposed to eliminate soluble lignin and extractives from the surface of the fibers. At the same time, the use of a coupling agent solves incompatibilities between the fibers and the matrix. The composites were tensile tested and the impact of the proposed treatments is evaluated and discussed. Later, the Kelly-Tyson modified equation and a modified rule of mixtures—the micro-mechanic models—is used to study the impact of such treatments on the quality of the interphase between the polymer and the reinforcement. Both treatments showed a high impact on the tensile strength and the quality of the interphase, obtaining competitive composite materials reinforced with HCFs derived from a by-product cat
dc.format.mimetype application/pdf cat
dc.language.iso eng cat
dc.publisher MDPI (Multidisciplinary Digital Publishing Institute) cat
dc.relation.isformatof Reproducció digital del document publicat a: https://doi.org/10.3390/polym9080377 cat
dc.relation.ispartof Polymers, 2017, vol. 9, núm. 8, p. 377 cat
dc.relation.ispartofseries Articles publicats (D-EQATA) cat
dc.rights Attribution 4.0 Spain *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/es/ *
dc.subject Fibres naturals cat
dc.subject Fibres naturelles cat
dc.subject Polipropilè cat
dc.subject Polypropylene cat
dc.subject Micromecànica cat
dc.subject Micromechanics cat
dc.title Effect of Sodium Hydroxide Treatments on the Tensile Strength and the Interphase Quality of Hemp Core Fiber-Reinforced Polypropylene Composites cat
dc.type info:eu-repo/semantics/article cat
dc.rights.accessRights info:eu-repo/semantics/openAccess cat
dc.embargo.terms Cap cat
dc.type.version info:eu-repo/semantics/publishedVersion cat
dc.identifier.doi https://doi.org/10.3390/polym9080377

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Drets: Attribution 4.0 Spain

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