Influence of drying temperature on coconut-fibers.

Autor: Martinelli FRB; Civil Engineering and Buildings Department, IFES - Instituto Federal do Espírito Santo, Av. Vitória, 1729, Vitória, RJ, 29040-780, Brazil., Pariz MG; IFES - Federal Institute of Espírito Santo, Av. Vitória, 1729, Vitória, RJ, 29040-780, Brazil., de Andrade R; Civil Engineering and Buildings Department, IFES - Instituto Federal do Espírito Santo, Av. Vitória, 1729, Vitória, RJ, 29040-780, Brazil., Ferreira SR; Civil Engineering Department, Federal University of Lavras, CP 3037, Lavras, MG, 37200-900, Brazil., Marques FA; Mechanics Department, IFES - Instituto Federal do Espírito Santo, Av. Vitória, 1729, Vitória, RJ, 29040-780, Brazil., Monteiro SN; Department of Materials Science, IME - Military Institute of Engineering, Square General Tibúrcio, 80, Rio de Janeiro, RJ, 22290-270, Brazil., de Azevedo ARG; LECIV - Civil Engineering Laboratory, UENF - State University of the North in Rio de Janeiro, Av. Alberto Lamego, 2000, Campos Dos Goytacazes, RJ, 28013-602, Brazil. afonso.garcez91@gmail.com.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Mar 18; Vol. 14 (1), pp. 6421. Date of Electronic Publication: 2024 Mar 18.
DOI: 10.1038/s41598-024-56596-z
Abstrakt: The use of natural fibers in cementitious composites has been gaining prominence in engineering. The natural lignocellulosic fibers (NLFs) used in these composites have advantages such as reduced density, reduced fragmentation and concrete cracking, thus improving flexural performance and durability. Coconut-fiber is one of those natural fibers and its use presents technical, ecological, social and economic benefits, as it is improperly disposed of, representing a large waste of natural resources, in addition to causing environmental pollution.. Thus, composites reinforced with natural fibers are promising materials for the construction industry, as in addition to meeting the sustainability of buildings, there will also be a reduction in urban solid waste generated and gains for structures with the use of environmentally friendly materials that meet to active efforts and with greater durability. This work aims to evaluate the tensile behavior of green coconut-fibers subjected to different drying temperatures through chemical, thermal (TG/DSC), morphological, visual and mechanical analysis. Drying temperatures of 70 °C, 100 °C and 130 °C were analyzed and the results indicated that the drying temperature at 70 °C was satisfactory, providing fiber-reinforced composites with good tensile strength, combined with good ductility.
(© 2024. The Author(s).)
Databáze: MEDLINE
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