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Polymers 2018, 10(10), 1050; https://doi.org/10.3390/polym10101050

Effect of Content and Surface Modification of Fique Fibers on the Properties of a Low-Density Polyethylene (LDPE)-Al/Fique Composite

1
Research Group for Manufacturing Technologies GITEM, Universidad Autónoma de Occidente, 760030 Cali, Colombia
2
Composite Materials Group, Universidad del Valle, 76001 Cali, Colombia
*
Author to whom correspondence should be addressed.
Received: 8 August 2018 / Revised: 8 September 2018 / Accepted: 18 September 2018 / Published: 20 September 2018
(This article belongs to the Special Issue Modification of Natural Fibres to Improve Biocomposites Performances)
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Abstract

This work presents the physical-thermal and mechanical characterization of a low-density polyethylene (LDPE)-Al matrix composite material that was obtained from reinforcing recycled (post-consumer) long-life Tetra Pak packages with fique natural fibers from southwestern Colombia. The fique was subjected to three chemical treatments to modify its surface (alkalinization, silanization and pre-impregnation with polyethylene) to increase the quality of its interfaces. Additionally, panels with 10%, 20%, and 30% v/v of fiber were manufactured by the hot compression molding. The mechanical properties of the different composite materials showed that the pre-impregnation treatment promoted a significant increase in the tensile and flexural properties with respect to the fiber-reinforced composite without surface modification. Additionally, in materials with 30% fibers that were treated with pre-impregnation, there was a decrease in the water absorption capacity of 53.15% when compared to composites made with 30% native fibers. Finally, increases in the fiber content mainly caused better mechanical performances, which increased as a direct function of the amount of fique incorporated. View Full-Text
Keywords: composite; LDPE; natural fibers; physico-mechanical properties; thermal properties; surface modification composite; LDPE; natural fibers; physico-mechanical properties; thermal properties; surface modification
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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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Muñoz-Vélez, M.F.; Hidalgo-Salazar, M.A.; Mina-Hernández, J.H. Effect of Content and Surface Modification of Fique Fibers on the Properties of a Low-Density Polyethylene (LDPE)-Al/Fique Composite. Polymers 2018, 10, 1050.

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