Academic literature on the topic 'Cellulose nanofibril (CNF)'

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Journal articles on the topic "Cellulose nanofibril (CNF)"

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Lafia-Araga, Ruth Anayimi, Ronald Sabo, Omid Nabinejad, Laurent Matuana, and Nicole Stark. "Influence of Lactic Acid Surface Modification of Cellulose Nanofibrils on the Properties of Cellulose Nanofibril Films and Cellulose Nanofibril–Poly(lactic acid) Composites." Biomolecules 11, no. 9 (2021): 1346. http://dx.doi.org/10.3390/biom11091346.

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In this study, cellulose nanofibrils (CNFs) were modified by catalyzed lactic acid esterification in an aqueous medium with SnCl2 as a catalyst. Films were made from unmodified and lactic acid-modified CNF without a polymer matrix to evaluate the effectiveness of the modification. Ungrafted and lactic acid-grafted CNF was also compounded with poly(lactic acid) (PLA) to produce composites. Mechanical, water absorption, and barrier properties were evaluated for ungrafted CNF, lactic acid-grafted CNF films, and PLA/CNF composites to ascertain the effect of lactic acid modification on the properti
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Park, Ji-Soo, Chan-Woo Park, Song-Yi Han, et al. "Preparation and Properties of Wet-Spun Microcomposite Filaments from Various CNFs and Alginate." Polymers 13, no. 11 (2021): 1709. http://dx.doi.org/10.3390/polym13111709.

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We aimed to improve the mechanical properties of alginate fibers by reinforcing with various cellulose nanofibrils (CNFs). Pure cellulose nanofibril (PCNF), lignocellulose nanofibril (LCNF) obtained via deep eutectic solvent (DES) pretreatment, and TEMPO-oxidized lignocellulose nanofibril (TOLCNF) were employed. Sodium alginate (AL) was mixed with PCNF, LCNF, and TOLCNF with a CNF content of 5–30%. To fabricate microcomposite filaments, the suspensions were wet-spun in calcium chloride (CaCl2) solution through a microfluidic channel. Average diameters of the microcomposite filaments were in th
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Park, Chan-Woo, Ji-Soo Park, Song-Yi Han, et al. "Preparation and Characteristics of Wet-Spun Filament Made of Cellulose Nanofibrils with Different Chemical Compositions." Polymers 12, no. 4 (2020): 949. http://dx.doi.org/10.3390/polym12040949.

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In this study, wet-spun filaments were prepared using lignocellulose nanofibril (LCNF), with 6.0% and 13.0% of hemicellulose and lignin, respectively, holocellulose nanofibril (HCNF), with 37% hemicellulose, and nearly purified-cellulose nanofibril (NP-CNF) through wet-disk milling followed by high-pressure homogenization. The diameter was observed to increase in the order of NP-CNF ≤ HCNF < LCNF. The removal of lignin improved the defibrillation efficiency, thus increasing the specific surface area and filtration time. All samples showed the typical X-ray diffraction pattern of cellulose I
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Cindradewi, Azelia Wulan, Rajkumar Bandi, Chan-Woo Park, et al. "Preparation and Characterization of Cellulose Acetate Film Reinforced with Cellulose Nanofibril." Polymers 13, no. 17 (2021): 2990. http://dx.doi.org/10.3390/polym13172990.

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In this study, cellulose acetate (CA)/cellulose nanofibril (CNF) film was prepared via solvent casting. CNF was used as reinforcement to increase tensile properties of CA film. CNF ratio was varied into 3, 5, and 10 phr (parts per hundred rubbers). Triacetin (TA) and triethyl citrate (TC) were used as two different eco-friendly plasticizers. Two different types of solvent, which are acetone and N-methyl-2-pyrrolidone (NMP), were also used. CA/CNF film was prepared by mixing CA and CNF in acetone or NMP with 10% concentration and stirred for 24 h. Then, the solution was cast in a polytetrafluor
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Parvej, M. Subbir, Xinnan Wang, and Long Jiang. "AFM Based Nanomechanical Characterization of Cellulose Nanofibril." Journal of Composite Materials 54, no. 28 (2020): 4487–93. http://dx.doi.org/10.1177/0021998320933955.

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Cellulose nanofibril (CNF) is the fundamental unit of almost all types of natural fibers and is regarded as one of the main factors that influence their mechanical properties. Besides, owing to having a high aspect ratio, it is increasingly being used in the research of nanocomposite as a reinforcement recently. In order to utilize CNF as reinforcement more effectively, it is important to have a comprehensive idea about the mechanical properties of individual CNFs. Most of the studies are focused on the elastic modulus in the longitudinal direction, but the study of the elastic modulus in the
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Qing, Yan, Yiqiang Wu, Zhiyong Cai, and Xianjun Li. "Water-Triggered Dimensional Swelling of Cellulose Nanofibril Films: Instant Observation Using Optical Microscope." Journal of Nanomaterials 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/594734.

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To understand the swelling behavior of cellulose nanofibril (CNF) films, the dimensional variation of untreated and phenol formaldehyde modified CNF (CNF/PF) films soaked in distilled water was examined in situ with microscopic image recording combined with pixel calculation. Results showed that a dramatic thickness increase exhibited in both CNF and CNF/PF films, despite being at different swelling levels. Compared to thickness swelling, however, the width expansion for these films is negligible. Such significant difference in dimensional swelling for CNF and PF modified films is mainly cause
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Chen, Bo, Qifeng Zheng, Jinli Zhu, et al. "Mechanically strong fully biobased anisotropic cellulose aerogels." RSC Advances 6, no. 99 (2016): 96518–26. http://dx.doi.org/10.1039/c6ra19280g.

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A series of mechanically strong and fully biobased carboxymethyl cellulose (CMC)/cellulose nanofibril (CNF) hybrid aerogels were produced via an environmentally friendly unidirectional freeze-drying process.
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Qing, Yan, Ronald Sabo, Yiqiang Wu, and Zhiyong Cai. "High-performance cellulose nanofibril composite films." BioResources 7, no. 3 (2012): 3064–75. http://dx.doi.org/10.15376/biores.7.3.3064-3075.

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Cellulose nanofibril/phenol formaldehyde (CNF/PF) composite films with high work of fracture were prepared by filtering a mixture of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) oxidized wood nanofibers and water-soluble phenol formaldehyde with resin contents ranging from 5 to 20 wt%, followed by hot pressing. The composites were characterized by tensile testing, dynamic mechanical analysis, scanning electron microscopy, atomic force microscopy, thermo-gravimetric analysis, and moisture/water absorption. Neat CNF films had tensile stress and Young’s modulus of 232 MPa and 4.79 GPa, respective
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Albornoz-Palma, Gregory, Daniel Ching, Andrea Andrade, Sergio Henríquez-Gallegos, Regis Teixeira Mendonça, and Miguel Pereira. "Relationships between Size Distribution, Morphological Characteristics, and Viscosity of Cellulose Nanofibril Dispersions." Polymers 14, no. 18 (2022): 3843. http://dx.doi.org/10.3390/polym14183843.

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Rheological parameters of cellulose nanofibril dispersions (CNF) are relevant and commonly used as quality control for producing of this type of material. These parameters are affected by morphological features and size distribution of the nanofibrils. Understanding the effect of size distribution is essential for analyzing the rheological properties, viscosity control, performance of CNFs, and potential dispersion applications. This study aims at comprehending how the morphological characteristics of the CNFs and their size distribution affect the rheological behavior of dispersions. The CNF
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Resende, N. S., G. A. S. Gonçalves, K. C. Reis, G. H. D. Tonoli, and E. V. B. V. Boas. "Chitosan/Cellulose Nanofibril Nanocomposite and Its Effect on Quality of Coated Strawberries." Journal of Food Quality 2018 (July 5, 2018): 1–13. http://dx.doi.org/10.1155/2018/1727426.

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The aim of this study was to develop a chitosan/cellulose nanofibril (CNF) nanocomposite and evaluate its effect on strawberry’s postharvest quality after coating. From the results of color, thickness, and scanning electron microscopy (SEM) and permeability to water vapor analyses, the best film formulation for coating strawberries was determined. Three coating formulations were prepared: 1% chitosan, 1% chitosan + 3% CNF, and 1% chitosan + 5% CNF. The strawberries were immersed in the filmogenic solutions and kept under cold storage (1 ± 1°C). The color of the film was not affected by increas
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Dissertations / Theses on the topic "Cellulose nanofibril (CNF)"

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Astorsdotter, Jennifer. "Dewatering Cellulose Nanofibril Suspensions through Centrifugation." Thesis, KTH, Skolan för kemivetenskap (CHE), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-215079.

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Cellulose nanofibrils (CNF) is a renewable material with unique strength properties. A difficulty in CNF production is that CNF suspensions contain large amounts of water. If CNF suspension volume can be decreased by dewatering facilitated by centrifugation, then transportation costs and storage costs can be reduced. The aim of this thesis is to investigate the impact various parameters have on CNF centrifugation dewatering and identify optimal conditions for maximal water removal. A laboratory study was conducted using four materials; 2.0 w% enzymatically treated CNF (CNF1), 1.9 w% carboxymet
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Abada, Maria, Elin Fossum, Louise Brandt, and Anton Åkesson. "Property prediction of super-strong nanocellulose fibers." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277118.

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The innovative technology behind production of strong biofilaments involves the process of spinning filaments from nanoparticles extracted from wood. These nanoparticles are called cellulose nanofibrils (CNFs). The spun filaments can have high mechanical properties, rivaling many other plant based materials, and could be an environmentally friendly replacement for many materials in the future such as fabrics and composites. Before mass production might be possible, the optimal dispersion properties must be determined for the intended use, with regard to concentration, method of oxidation (TEMP
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Törneman, Hedda. "Development of a porous material from cellulose nanofibrils." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-179266.

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Cellulose nanofibrils are a biobased and renewable material with potential to be used in many different applications. Such applications include air filtration, absorption of liquids, and thermal insulation.  To be used for these applications the cellulose nanofibrils must form a porous and dry material. However, maintaining some degree of porosity after drying is difficult, since the fibrils are extracted in liquid and tend to collapse into a dense material upon drying. Certain methods have proven effective for making a dry porous material from cellulose nanofibrils, but these are often expens
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Sandberg, Birgersson Paulina. "Transparent paper: Evaluation of chemical modification routes to achieve self-fibrillating fibres." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-281347.

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Transparenta papper tillverkade av cellulosa nanofibriller (CNF), visar stor potential att kunna ersätta petroleumbaserade plaster inom många användningsområden, till exempel för mat- och varuförpackningar. CNF, även känt som nanocellulosa, kombinerar viktiga cellulosaegenskaper, med unika egenskaper hos nanomaterial. Denna kombination av egenskaper möjliggör tillverkning av ett pappers-liknande material som uppvisar både utmärkta mekaniska egenskaper och hög transparens. Användningen av nanocellulosa är dock förknippad med diverse utmaningar, för att materialet ska kunna bli kommersiellt slag
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Gomes, Claudia Marcia. "Cationization of cellulose nanofibrils (CNF) for application as additive to improve quality of eucalyptus kraft pulp on paper production." Universidade Federal de Viçosa, 2015. http://www.locus.ufv.br/handle/123456789/9384.

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Submitted by Marco Antônio de Ramos Chagas (mchagas@ufv.br) on 2017-01-30T15:29:34Z No. of bitstreams: 1 texto completo.pdf: 2186368 bytes, checksum: 89d84aaff0406ad4acf2404b5edae3c6 (MD5)<br>Made available in DSpace on 2017-01-30T15:29:34Z (GMT). No. of bitstreams: 1 texto completo.pdf: 2186368 bytes, checksum: 89d84aaff0406ad4acf2404b5edae3c6 (MD5) Previous issue date: 2015-12-21<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Celulose nanofibrila (CNF) refere-se aos aglomerados de fibrilas de celulose com diâmetro na ordem de nanômetros, obtidos a partir de fibras
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Theng, Dyna. "Feasibility of incorporating treated lignin and cellulose nanofiber in fiberboards made from corn stalk and rice straw." Doctoral thesis, Universitat de Girona, 2017. http://hdl.handle.net/10803/461717.

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Agricultural waste is of particularly interest due to abudant, cheap, widely available worldwide and renewable material. It represent a good option for wood sources substitution, containing similar in chemical and physical characteristics. The present Doctoral Thesis studies the possibility of substituting wood sources by crop residues and replacing synthetic binders by natural adhesives in fiberboard production. Corn and rice biomass were selected as raw materials, followed by thermo-mechanical pulping (TMP) pretreatment. Fiberboards made of TMP of both crop residues without any binder presen
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Ankerfors, Mikael. "Microfibrillated cellulose: Energy-efficient preparation techniques and applications in paper." Doctoral thesis, KTH, Fiberteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159222.

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This work describes three alternative processes for producing microfibrillated cellulose (MFC; also referred to as cellulose nanofibrils, CNF) in which bleached pulp fibres are first pretreated and then homogenized using a high-pressure homogenizer. In one process, fibre cell wall delamination was facilitated by a combined enzymatic and mechanical pretreatment. In the two other processes, cell wall delamination was facilitated by pretreatments that introduced anionically charged groups into the fibre wall, by means of either a carboxymethylation reaction or irreversibly attaching carboxymethyl
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Griveau, Lucie. "Emulsion polymerization in the presence of reactive PEG-based hydrophilic chains for the design of latex particles promoting interactions with cellulose derivatives." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1329/document.

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Dans cette thèse, des particules de polymère fonctionnalisées en surface avec des groupes poly (éthylène glycol) (PEG) ont été synthétisées pour favoriser leur interaction avec les dérivés cellulosique via liaisons hydrogène intermoléculaires. Deux voies de synthèse ont été proposées pour obtenir ses composites cellulose/latex.La première voie est basée sur l'auto-assemblage induit par polymérisation (PISA) pour former des nanoparticules fonctionnalisées avant leur adsorption sur un substrat cellulosique. La PISA tire profit de la formation de copolymères blocs amphiphiles dans l'eau en combin
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(9669782), Anthony Paul Becerril. "THE INFLUENCE OF CELLULOSE NANOCRYSTALS ON PERFORMANCE AND TRANSPORT PROPERTIES OF CEMENTITIOUS MATERIALS AND GYPSUM." Thesis, 2020.

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<p>Concrete is in everyday life such as parking lots, buildings, bridges, and more. To keep concrete and its constituents together, binders such as cement are used. Cement’s production process is responsible for 8% of global carbon dioxide emissions as of 2018. With global warming being a severe global issue, the challenge of reducing cement carbon dioxide emissions can be greatly beneficial with even slight improvements. Various solutions to this challenge have developed over the years in the form of processing efficiency, material substitution, or material additives. Of the additives for cem
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(6631748), Shikha Shrestha. "Effect of nanocellulose reinforcement on the properties of polymer composites." Thesis, 2019.

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<div> <p><a>Polymer nanocomposites are envisioned for use in many advanced applications, such as structural industries, aerospace, automotive technology and electronic materials, due to the improved properties like mechanical strengthening, thermal and chemical stability, easy bulk processing, and/or light-weight instigated by the filler-matrix combination compared to the neat matrix. In recent years, due to increasing environmental concerns, many industries are inclining towards developing sustainable and renewable polymer nanocomposites. Cellulose nanomaterials (CNs), including cellulose na
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Book chapters on the topic "Cellulose nanofibril (CNF)"

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Hoeger, Ingrid C. "Microscopic Analysis of Cellulose Nanofibril (CNF)- and Cellulose Nanocrystal (CNC)-Based Nanocomposites." In Handbook of Nanocellulose and Cellulose Nanocomposites. Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527689972.ch11.

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Yu, Hou-Yong, and Chen-Feng Yan. "Mechanical Properties of Cellulose Nanofibril (CNF)- and Cellulose Nanocrystal (CNC)-Based Nanocomposites." In Handbook of Nanocellulose and Cellulose Nanocomposites. Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527689972.ch12.

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Rudie, Alan. "Commercialization of Cellulose Nanofibril (CNF) and Cellulose Nanocrystal (CNC): Pathway and Challenges." In Handbook of Nanocellulose and Cellulose Nanocomposites. Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527689972.ch23.

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Salas, Carlos, and Carlos Carrillo. "Dynamic Mechanical Characterization of Cellulose Nanofibril CNF- and Cellulose Nanocrystal CNC-Based Nanocomposites." In Handbook of Nanocellulose and Cellulose Nanocomposites. Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527689972.ch13.

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Ferrer Carrera, Ana. "Coupling Agent Usage in the Preparation of Cellulose Nanofibril (CNF)- and Cellulose Nanocrystal (CNC)-Based Nanocomposites." In Handbook of Nanocellulose and Cellulose Nanocomposites. Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527689972.ch10.

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Syverud, Kristin. "Tissue Engineering Using Plant-Derived Cellulose Nanofibrils (CNF) as Scaffold Material." In Nanocelluloses: Their Preparation, Properties, and Applications. American Chemical Society, 2017. http://dx.doi.org/10.1021/bk-2017-1251.ch009.

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Narayanan, Thinakaran. "Nanocellulose: Source, Chemistry, and Properties." In Nanocellulose-based Hybrid Systems for Tissue Engineering. Royal Society of Chemistry, 2024. https://doi.org/10.1039/9781837673094-00001.

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Nanocellulose refers to various nanostructured forms of cellulose, including cellulose nanocrystals (CNC), cellulose nanofibres (CNF), and bacterial nanocellulose. These materials have distinctive properties that make them suitable for a wide range of applications. CNF and CNC are well-known for their nanostructured nature and potential in various fields. Bacterial nanocellulose, which is produced by bacteria, stands out due to its high purity, ultrafine network structure, and impressive mechanical properties, making it ideal for biocompatible applications. The mechanisms for using nanocellulo
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Luis Sanchez-Salvador, Jose, Hongyu Xu, Ana Balea, et al. "Nanocellulose, a Promising Raw Material: Improving the Scalability of TEMPO-Mediated Oxidation Process." In Cellulose - Biobased Solutions for Society [Working Title]. IntechOpen, 2025. https://doi.org/10.5772/intechopen.1008755.

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Nanocellulose is a promising raw material due to its distinctive properties, including renewable origin, biodegradability, lightweight, and high mechanical strength. It has a very high potential to enhance products in a broad spectrum of applications. However, the production of highly fibrillated cellulose nanofibrils (CNFs) remains costly due to the high energy and chemical consumption. TEMPO-mediated oxidation (TMO) is the most widely accepted pretreatment for CNF production due to its high efficiency and selectivity. However, challenges associated with scaling up this process are limiting t
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V. Pereira, Robson, Thais E. Gallina, Marcelo A. Pereira-da-Silva, Kênia S. Freitas, and Aparecido J. de Menezes. "Electrochemical Behavior of Cellulose Nanofibrils Functionalized with Dicyanovinyl Groups." In Nanofibers - Synthesis, Properties and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96181.

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Cellulose is considered one of the most important renewable sources of biopolymers on Earth. It has attracted widespread attention due to its physical–chemical characteristics, such as biocompatibility, low toxicity, biodegradability, low density, high strength, stability in organic solvents, in addition to having hydroxyl groups, which enable its chemical modification. In this study, cellulose nanofibrils (CNFs) were functionalized with dicyanovinyl groups through nucleophilic vinylic substitution (SNV) and used as electrocatalyst in electrochemical of carbon dioxide (CO2) reduction. Results
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Lakhane, Madhuri, and Megha Mahabole. "Biocompatible Composites and Applications." In Bio-Inspired Nanotechnology. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815080179123010004.

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In this chapter, the low-cost, biodegradable absorbents are developed for wastewater treatment. At first, the modification of the procured nano ZSM-5 is executed by means of dealumination and ion exchange process to have de-laminated (D-ZSM-5), Cu-ZSM-5 and Fe-ZSM-5. Furthermore, cellulose nanofibrils (CNFs) are mixed with modified zeolites with varying concentrations (20 and 80 wt%) used for the fabrication of innovative composite films ((D-ZSM-5, Cu-ZSM-5 and Fe-ZSM-5). FTIR, XRD, BETCO2, TGA, and SEM type of characterization techniques are used for the analysis of composites. The prepared c
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Conference papers on the topic "Cellulose nanofibril (CNF)"

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Shao, Shuai, Xiao-Yun Wang, Run-Tao Xia, Ju Huang, and Zhi-Qin Peng. "Extraction of Cellulose Nanofibrils (CNFs) from Pomelo Peel Via Hydrothermal Auxiliary Alkali Treatment Combined with Ball-milling." In 16th Textile Bioengineering and Informatics Symposium. Textile Bioengineering and Informatics Society Limited (TBIS), 2023. https://doi.org/10.52202/070821-0053.

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Park, Shin Young, Sooim Goo, Heenae Shin, Jinseung Kim, and Hye Jung Youn. "Properties of Cellulose Nanofibril Foam Depending on Wet Foaming Conditions." In Advances in Pulp and Paper Research. Pulp & Paper Fundamental Research Committee (FRC), Manchester, 2022. http://dx.doi.org/10.15376/frc.2022.1.45.

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Cellulose nanofibril (CNF) foam, which has advantages of sustainability and biodegradability, has a potential to apply to diverse fields including packaging, thermal insulation, and absorbent. In recent days, the oven drying of Pickering-stabilized CNF wet foam was proposed as an alternate approach to manufacture CNF-based porous foams. To produce CNF foam with uniform structure, the properties of wet foam are very important. In this study, carboxymethylated cellulose nanofibril (CMCNF) was used to prepare CNF foam. The effects of wet foaming conditions such as CMCNF consistency, surfactant am
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Ottesen, Vegar, Erik Dobloug Roede, Kristin Syverud, and Øyvind Weiby Gregersen. "Focused Ion Beam Tomography as a Means for Characterization of CNF in a Paper Matrix." In Advances in Pulp and Paper Research, Oxford 2017, edited by W. Batchelor and D. Söderberg. Fundamental Research Committee (FRC), Manchester, 2017. http://dx.doi.org/10.15376/frc.2017.2.595.

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A method to study Cellulose Nanofibril (CNF) distribution in three dimensions within a paper matrix-in-situ-was developed. Focused Ion Beam (FIB)/Scanning Electron Microscopy (SEM) tomography was used to investigate the distribution of cellulose nanofibres in thee dimensions within a paper structure. Sufficient resolution and material contrast was contained using both secondary and back-scattered electrons in volumes as large as 103 um3. Challenges and approaches to achieve this are discussed, both with respect to the microscopy technique and with respect to image processing and volume reconst
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Sulaiman, Hanisah Syed, Chia Chin Hua, and Sarani Zakaria. "Cellulose nanofibrils (CNF) filled boron nitride (BN) nanocomposites." In THE 2015 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2015 Postgraduate Colloquium. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4931263.

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Konno, Haruo, Takeshi Fujii, Kazuhiko Ishizuka, and Masayuki Kawasaki. "Developments of Manufacturing Techniques and Applications of Cellulose Nanofibre." In Advances in Pulp and Paper Research, Oxford 2017. Fundamental Research Committee (FRC), Manchester, 2017. http://dx.doi.org/10.15376/frc.2017.2.777.

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Nippon Paper industries has been developing Cellulose Nanofibre (CNF) products prepared by the fibrillation of chemically modified pulp since 2007. In November 2013 we started to operate a pre-commercial plant in order to provide CNF for the collaborators, potential users and internal use, after 5 years of fundamental research together with out collaborators with the aim of commercialization of products using CNF. In our pre-commercial plant, mainly TEMPO oxidized CNF is produced, a process developed by the research group of Prof. A. Isogai at The University of Tokyo. In addition t TEMPO oxida
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Šumiga, Barbara, Igor Karlovits, and Boštjan Šumiga. "Adhesion strength of temperature varied nanocellulose enhanced water based paper and cardboard adhesives." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p19.

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Water-based dispersion adhesives consist of a solid adhesive dispersed in an aqueous phase. These adhesives contain water-soluble additives such as surfactants, emulsifiers, and protective colloids, which act as links between the solid adhesive particles and the aqueous phase. They prevent the adhesive particles from sticking together and separating during storage. During drying, these additives evaporate or are absorbed into the adhesive. Polyvinyl acetate (PVAc) and polyvinyl alcohol (PVOH) are further examples of ethylene copolymers. PVAc is used as an emulsion adhesive for production of ba
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Lv, Qichao, Tongke Zhou, Yingting Luan, and Zhaoxia Dong. "Rheology and Dynamic Filtration of Foam Fracturing Fluid Enhanced by Cellulose Nanofibrils." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21361-ms.

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Abstract Foam fracturing is an effective method for the development of unconventional reservoirs. However, due to lamellar film, high pressure differences within foam films, and the strong diffusivity of the internal phase, foam is prone to suffering from unstable phenomena such as rupture, drainage, disproportionation, etc., thus leading to uncontrollable foam flow behavior in the tube and formation. In this work, cellulose nanofibrils (CNFs) were used to enhance foam fracturing fluid. The target is not only to obtain a stable foam system, but also to control its rheology, proppant-carrying a
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Shen, Zhenghui, Kyudeok Oh, Martti Toivakka, and Hak Lae Lee. "Preparation of Cellulose Nanofibrils/Salt Hydrate Composite Phase Change Materials for Thermal Energy Storage." In Advances in Pulp and Paper Research. Pulp & Paper Fundamental Research Committee (FRC), Manchester, 2022. http://dx.doi.org/10.15376/frc.2022.1.157.

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Salt hydrate phase change materials (PCMs) have been intensively used for thermal energy storage (TES) due to their sharp melting points, high energy storage density, small volume change and low cost. However, the problems of phase separation, supercooling and relatively low thermal conductivity of salt hydrate PCMs need to be addressed for high-efficiency TES. In this research, cellulose nanofibrils (CNFs) and CNFs-based composites were used to improve the TES performance of sodium acetate trihydrate (SAT). The effect of CNFs on the phase stability of SAT was investigated and the involved mec
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de Oliveira, Vinícius, Lucas Nao Horiuchi, Ana Paula Goncalves, Marina De Andrade, and Rodrigo Polkowski. "Nanocomposites Made with Poly(Lactic Acid)/Cellulose Nanofibers for Automotive Applications: The Impact of Annealing on 3D Printed Parts." In WCX SAE World Congress Experience. SAE International, 2025. https://doi.org/10.4271/2025-01-8328.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;The advance of regulatory emission standards for light-duty vehicles, trucks and motorcycles, coupled with rising sustainability concerns, particularly United Nations' Sustainable Development Goal 12 (responsible consumption and production), has created an urgent need &lt;b&gt;f&lt;/b&gt;or lighter, stronger, and more ecological materials. Polylactic acid (PLA), a biodegradable polymer derived from plant sources, offers promising mechanical tensile strength and processability. Nanocomposites, a solution that combines a b
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Ketola, Annika, Tuomo Hjelt, Timo Lappalainen, et al. "The Relation Between Bubble-Fibre Interaction and Material Properties in Foam Forming." In Advances in Pulp and Paper Research. Pulp & Paper Fundamental Research Committee (FRC), Manchester, 2022. http://dx.doi.org/10.15376/frc.2022.1.65.

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Foam forming of cellulose fibre materials is based on an interaction between fibres and bubbles, which can take several material properties to new levels. To control the formed structure, the mechanisms of this interaction have been systematically investigated. This started with captive bubble studies where we analysed the interaction of a single bubble with various smooth cellulose and silica model surfaces. The bubbles adhered only to hydrophobic surfaces, and this attraction was sensitive to the surface tension. From this simplest case, the studied system gradually became more complex. We f
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