Effect of Sodium Hydroxide Treatments on the Tensile Strength and the Interphase Quality of Hemp Core Fiber-Reinforced Polypropylene Composites
dc.contributor.author
dc.date.accessioned
2017-09-07T10:01:11Z
dc.date.available
2017-09-07T10:01:11Z
dc.date.issued
2017-08-19
dc.identifier.uri
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
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
MDPI (Multidisciplinary Digital Publishing Institute)
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.3390/polym9080377
dc.relation.ispartof
Polymers, 2017, vol. 9, núm. 8, p. 377
dc.relation.ispartofseries
Articles publicats (D-EQATA)
dc.rights
Attribution 4.0 Spain
dc.rights.uri
dc.title
Effect of Sodium Hydroxide Treatments on the Tensile Strength and the Interphase Quality of Hemp Core Fiber-Reinforced Polypropylene Composites
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
Cap
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.eissn
2073-4360