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Isolation and Characterization of Cellulose Nanofibers from Argentine Tacuara Cane (Guadua Angustifolia Kunth)

عزل وتوصيف ألياف السليلوز النانوية من قصب تاكوارا الأرجنتيني (Guadua Angustifolia Kunth)
Authors: C.A. Rodríguez-Ramírez; Fleur Rol; Julien Bras; Alain Dufresne; Nancy Lis García; Norma B. D'Accorso;

Isolation and Characterization of Cellulose Nanofibers from Argentine Tacuara Cane (Guadua Angustifolia Kunth)

Abstract

Les nouvelles tendances dans le domaine de l'amélioration des matériaux sont l'utilisation de nanocharges naturelles issues de la biomasse renouvelable, améliorant la valeur et la durabilité des produits naturels de notre pays. Le bambou est largement utilisé dans de nombreux pays du monde, bien qu'en Argentine, bien qu'il soit commercialisé et exporté pour la fabrication de planchers de bois, il passe inaperçu malgré la présence d'espèces indigènes. Par conséquent, les chercheurs ont identifié les espèces indigènes et exotiques présentes dans notre pays et travaillent sur de nouvelles utilisations. Dans ce contexte, il est proposé la canne Tacuara argentine (Guadua Angustifolia Kunth), plante endémique comme nouvelle source de matériaux nanocellulosiques, où les fibres de tige ont été isolées à l'aide d'une méthode verte atteignant un rendement de 45,9% de cellulose. Les nanofibrilles de cellulose (CNF) ont été obtenues en utilisant une méthode d'homogénéisation verte. Le CNF présentait une longue structure fibreuse en forme de toile avec un diamètre de 10-20 nm. La cristallinité était de 65,5%, comme pour la température de début de décomposition thermique était de 212°C. La nanocellulose isolée à partir des fibres de graines de Tacuara Cane a un fort potentiel pour être utilisée comme nouvelle source de nanofiller à base de cellulose pour le renforcement des films bionanocomposites.

Las nuevas tendencias en el área de mejora de materiales son el uso de nanocargas naturales a partir de biomasa renovable, mejorando el valor y la sostenibilidad de los productos naturales de nuestro país. El bambú es ampliamente utilizado en muchos países del mundo, aunque en Argentina, a pesar de ser comercializado y exportado para la fabricación de pisos de madera, pasa desapercibido a pesar de tener especies nativas. Por lo tanto, los investigadores identificaron las especies nativas y exóticas presentes en nuestro país y están trabajando en usos novedosos. En este contexto, se propone la Caña Tacuara Argentina (Guadua Angustifolia Kunth), planta endémica como nueva fuente de materiales nanocelulósicos, donde se han aislado fibras de tallo mediante un método verde logrando un rendimiento del 45,9% de celulosa. Las nanofibrillas de celulosa (CNF) se obtuvieron utilizando un método de homogeneización verde. La CNF exhibió una estructura fibrosa larga similar a una banda con un diámetro de 10-20 nm. La cristalinidad fue del 65,5%, mientras que la temperatura de inicio de la descomposición térmica fue de 212 °C. La nanocelulosa aislada de las fibras de semilla de caña de Tacuara tiene un alto potencial para ser utilizada como una nueva fuente de nanocarga a base de celulosa para el refuerzo de películas bionanocompuestas.

New trends in the area of material improvement are the use of natural nano-charges from renewable biomass, improving the value and sustainability of our country's natural products. Bamboo is widely used in many countries of the world, although in Argentina, despite being commercialized and exported for the manufacture of wood floors, it goes unnoticed despite having native species. Therefore, researchers identified the native and exotic species present in our country and are working on novel uses. In this context, it is proposed the Argentine Tacuara Cane (Guadua Angustifolia Kunth), endemic plant as a new source of nanocellulosic materials, where stem fibers have been isolated using a green method achieving with yield of 45.9% of cellulose. The cellulose nanofibrils (CNF) were obtained using a green homogenization method. The CNF exhibited web-like long fibrous structure with the diameter of 10-20 nm. The crystallinity was 65.5%, as for the onset temperature of thermal decomposition was 212°C. The nanocellulose isolated from the Tacuara Cane seed fibers has a high potential to be used as a new source of cellulose-based nanofiller for the reinforcement of bionanocomposite films.

الاتجاهات الجديدة في مجال تحسين المواد هي استخدام شحنات النانو الطبيعية من الكتلة الحيوية المتجددة، وتحسين قيمة واستدامة المنتجات الطبيعية لبلدنا. يستخدم الخيزران على نطاق واسع في العديد من دول العالم، على الرغم من أنه في الأرجنتين، على الرغم من تسويقه وتصديره لتصنيع الأرضيات الخشبية، إلا أنه لا يلاحظه أحد على الرغم من وجود أنواع محلية. لذلك، حدد الباحثون الأنواع المحلية والغريبة الموجودة في بلدنا ويعملون على استخدامات جديدة. في هذا السياق، يُقترح قصب التاكوارا الأرجنتيني (Guadua Angustifolia Kunth)، وهو نبات مستوطن كمصدر جديد للمواد النانوسليلوزية، حيث تم عزل الألياف الجذعية باستخدام طريقة خضراء تحقق عائدًا بنسبة 45.9 ٪ من السليلوز. تم الحصول على اللييفات السليولوزية النانوية (CNF) باستخدام طريقة التجانس الأخضر. أظهر CNF بنية ليفية طويلة تشبه الشبكة بقطر 10-20 نانومتر. كانت البلورة 65.5 ٪، أما بالنسبة لدرجة حرارة بداية التحلل الحراري فكانت 212 درجة مئوية. يتمتع النانوسليلوز المعزول من ألياف بذور قصب التاكوارا بإمكانية عالية لاستخدامه كمصدر جديد للحشو النانوي القائم على السليلوز لتعزيز أفلام البيونانوكومبوزيت.

Countries
France, Argentina
Keywords

Biomass (ecology), Composite material, Pulp and paper industry, Polymers and Plastics, Green valorization, GREEN VALORIZATION, Nanofibrils, Materials Science, Natural Fibers, Nanofibers, Horticulture, Biochemistry, 630, Nanocellulose: Properties, Production, and Applications, Cane, Biomaterials, Food science, Context (archaeology), Engineering, https://purl.org/becyt/ford/2.5, [CHIM]Chemical Sciences, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, https://purl.org/becyt/ford/2, Sugar, Cellulose, Bamboo, Crystallinity, Biology, Nanocellulose, 580, Botany, Paleontology, [CHIM.MATE]Chemical Sciences/Material chemistry, Nanofiber, Green Nanotechnology, Materials science, Agronomy, CELLULOSE, Natural Fiber Reinforced Polymer Composites, Physical Sciences, NANOFIBERS

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
8
Top 10%
Average
Top 10%
Green
gold