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Material Utilization of Cotton Post-Harvest Line Residues in Polymeric Composites

1
Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague 6-Suchdol, Czech Republic
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Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague 6-Suchdol, Czech Republic
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Department of Agricultural Machines and Technologies Engineering, Faculty of Agriculture, Ondokuz Mayis University, Körfez Mah.Atakum 55139, Samsun, Turkey
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Department of Electrical Engineering and Automation, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague 6-Suchdol, Czech Republic
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Faculty of Manufacturing Technologies, Technical University of Kosice with a seat in Prešov, Bayerova 1, 080 01 Prešov, Slovakia
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Faculty of Mechanical Engineering, Technical University of Liberec, Studenstká 2, 461 17 Liberec 1, Czech Republic
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Department for Quality and Dependability of Machines, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague 6-Suchdol, Czech Republic
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(7), 1106; https://doi.org/10.3390/polym11071106
Received: 25 April 2019 / Revised: 25 June 2019 / Accepted: 25 June 2019 / Published: 29 June 2019
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Abstract

This paper deals with a research focused on utilization of microparticle and short-fiber filler based on cotton post-harvest line residues in an area of polymeric composites. Two different fractions of the biological filler (FCR—reinforced cotton filler) of 20 and 100 µm and the filler with short fibers of a length of 700 µm were used in the research. The aim of the research was to evaluate mechanical characteristics of composites and adhesive bonds for the purpose of gaining new pieces of knowledge which will be applicable in the area of material engineering and assessing application possibilities of residues coming into being from agricultural products processing. Mechanical properties of the composite material produced by a vacuum infusion and tested at temperatures 20, 40, and 60 °C and adhesive bonds which were exposed to a low-cyclic loading, i.e., 1000 cycles at 30% to 70% from reference value of the maximum strength, were evaluated. Composite systems with the FCR adjusted in 5% water solution of NaOH showed higher strength values on average compared to untreated FCR. Unsuitable size of the FCR led to a deterioration of the strength. The filler in the form of 700 FCR microfibers showed itself in a positive way to composite materials, and the particle in the form of 20 FCR did the same to adhesive bonds. Results of adhesive bond cyclic tests at higher stress values (70%) demonstrated viscoelastic behavior of the adhesive layer. View Full-Text
Keywords: adhesive bonds; biofiller; chemical treatment; cyclic loading; epoxy resin; mechanical properties; SEM adhesive bonds; biofiller; chemical treatment; cyclic loading; epoxy resin; mechanical properties; SEM
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Müller, M.; Valášek, P.; Kolář, V.; Šleger, V.; Gürdil, G.A.K.; Hromasová, M.; Hloch, S.; Moravec, J.; Pexa, M. Material Utilization of Cotton Post-Harvest Line Residues in Polymeric Composites. Polymers 2019, 11, 1106.

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