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Journal of Composite Materials
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A Silicone Treatment Compared to Traditional Natural Fiber Treatments: Effect on the Mechanical and Viscoelastic Properties of Jute—Vinylester Laminates

A. Stocchi

Research Institute of Material Science and Technology (INTEMA), Engineering Faculty, National University of Mar del Plata, Argentina, Juan B. Justo 4302 (7600) Mar del plata, Argentina

C. Bernal

Research Institute of Material Science and Technology (INTEMA), Engineering Faculty, National University of Mar del Plata, Argentina, Juan B. Justo 4302 (7600) Mar del plata, Argentina

A. Vázquez

Research Institute of Material Science and Technology (INTEMA), Engineering Faculty, National University of Mar del Plata, Argentina, Juan B. Justo 4302 (7600) Mar del plata, Argentina, anvazque{at}fi.mdp.edu.ar

J. Biagotti

Materials Science and Technology Center, University of Perugia, INSTM, UdR Perugia, Loc. Pentima Bassa 21, 05100, Terni, Italy

J. Kenny

Materials Science and Technology Center, University of Perugia, INSTM, UdR Perugia, Loc. Pentima Bassa 21, 05100, Terni, Italy

In this work vinylester—matrix composites reinforced with woven jute fabrics were investigated. The effect of a simple fiber treatment with silicone on the mechanical and viscoelastic response in comparison to traditional treatments was analyzed. Unless the composite with acetylated fibers, all composites exhibited higher values of rubbery storage modulus than the matrix. All treated fiber composites have similar damping capacities. Furthermore, silicone had a plasticizing effect on the vinylester matrix. The composites with washed fibers and with fibers treated with silicone exhibited slightly higher stiffness and strength values than other treated fiber composites. In addition to its experimental simplicity, the treatment with silicone also allowed us to obtain the composites with best combination of stiffness, strength, and toughness.

Key Words: natural fiber • composite • mechanical properties.

Journal of Composite Materials, Vol. 41, No. 16, 2005-2024 (2007)
DOI: 10.1177/0021998307074108
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