Abstract
In this work, bio-based products from starch biopolymer and rape biomass were produced. The physicochemical properties at interface of the biodegradable composites were analyzed and the intrinsic tensile strength of the rape fibers was determined from biocomposites containing up to 40 wt% of starch substitution.
Rape thermomechanical fibers showed potential to undergo efficient fiber/fiber joints, and this was evidenced by their aptitude to paper production and to reinforce biopolymers such as thermoplastic starch. The high yield thermomechanical process brought rape fibers rich in lignin at the fiber surface, and this helped to fiber individualization and dispersion into the matrix. The surface characteristics of rape fibers allowed anchoring to the starch matrix, by means of Van der Waals interactions and hydrogen bonding. The quality of the rape/starch interface was analyzed in this study, and values for the interfacial shear strength ( τ ) and the intrinsic strength of rape fibers (σtF) were evaluated.
Keywords: Rape fibers, Starch biopolymer, Biocomposite, Intrinsic tensile properties, Interface.
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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