Citas bibligráficas
Arango, S., (2022). Evaluación de nanocelulosa fibrilar (NCF) obtenida a partir de Bolaina blanca (Guazuma crinita) proveniente de una plantación de Ucayali, Perú [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/5528
Arango, S., Evaluación de nanocelulosa fibrilar (NCF) obtenida a partir de Bolaina blanca (Guazuma crinita) proveniente de una plantación de Ucayali, Perú []. PE: Universidad Nacional Agraria La Molina; 2022. https://hdl.handle.net/20.500.12996/5528
@misc{renati/246232,
title = "Evaluación de nanocelulosa fibrilar (NCF) obtenida a partir de Bolaina blanca (Guazuma crinita) proveniente de una plantación de Ucayali, Perú",
author = "Arango Perez, Sergio Andre",
publisher = "Universidad Nacional Agraria La Molina",
year = "2022"
}
The objective of this study was to obtain and characterize nanofibrillated cellulose (NCF) from the wood of bolaina blanca (Guazuma crinita Mart) at different heights of the longitudinal axis of the trunk of trees from a three-and-a-half-year-old plantation from the Ucayali region. The NCF was obtained by mechanical milling using a planetary ball mill. The product was characterized by analytical techniques: SEM, XRD, TGA, FTIR, UV-Vis, in addition, the degree of polymerization was found. The effect of the longitudinal position on the NCF characteristics was evaluated by means of the comparison of means, evaluated in ANOVA and Kruskal - Wallis statistical tests. The effciency of NCF production from the apical, middle and basal sections was 32.1, 33.6 and 31 percent, respectively. The NCF obtained acquire a significantly larger diameter for the apical zone (84 nm) compared to the middle (75 nm) and basal zone (69 nm), which did not show significance among themselves; the length remained above the micron; with respect to the degree of polymerization, values were found between the 200 and 300 glucose monomers that compose the cellulosic network, where the basal zone presents significantly higher values than the middle and apical zone, respectively. The product showed a typical type I cellulose polymorphism and crystallinity indexes with values of 76, 93 and 96 percent for the apical, middle and basal sections, respectively. Regarding NCF thermostability, a maximum degradation rate was obtained between 335 °C and 341 °C, with the NCF coming from the basal zone being the most stable. The adsorption power of NCF on methylene blue dye was evaluated, where an efficiency above 60 percent was found.
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