Characterization of fibrillated celluloses. A short review and evaluation of characteristics with a combination of methods

Kangas, Heli; Lahtinen, Panu; Sneck, Asko; Saariaho, Anna-Maija; Laitinen, Ossi; Hellén, Erkki

doi:10.3183/npprj-2014-29-01-p129-143

Cited by 116 publications

(89 citation statements)

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“…The term "highly fibrillated" is used here in recognition of the difficulty in drawing a clear differentiation within a broad, continuous range of possible mechanical treatments (Kangas et al 2014;Khalil et al 2014). In addition to refining, homogenizing, and grinding procedures, NFC also can be prepared by "counter-collision" of aqueous streams .…”

Section: Highly Fibrillated Cellulosementioning

confidence: 99%

Nanocellulose in Thin Films, Coatings, and Plies for Packaging Applications: A Review

Hubbe

Ferrer

Tyagi

et al. 2017

BioRes

245

234

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This review article was prompted by a remarkable growth in the number of scientific publications dealing with the use of nanocellulose (especially nanofibrillated cellulose (NFC), cellulose nanocrystals (CNC), and bacterial cellulose (BC)) to enhance the barrier properties and other performance attributes of new generations of packaging products. Recent research has confirmed and extended what is known about oxygen barrier and water vapor transmission performance, strength properties, and the susceptibility of nanocellulose-based films and coatings to the presence of humidity or moisture. Recent research also points to various promising strategies to prepare ecologically-friendly packaging materials, taking advantage of nanocellulose-based layers, to compete in an arena that has long been dominated by synthetic plastics. Some promising approaches entail usage of multiple layers of different materials or additives such as waxes, high-aspect ratio nano-clays, and surface-active compounds in addition to the nanocellulose material.While various high-end applications may be achieved by chemical derivatization or grafting of the nanocellulose, the current trends in research suggest that high-volume implementation will likely incorporate water-based formulations, which may include water-based dispersions or emulsions, depending on the enduses. Resources; North Carolina State University, Raleigh, NC 27695, USA; b: Nalco Champion, an Ecolab Company, 7705 Highway 90-A, Sugar Land, TX 77478, USA; c: School of Clothing and Textiles, Jiangnan University, Wuxi, Jiangsu, China; d: Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, PO Box 16300, FI-00076 Aalto, Finland; * Corresponding author: hubbe@ncsu Table B -Barrier properties of NFC films 2144 2145 2145 2149 2151 2152 2153 2155 2155 2157 2157 2158 2158 2159 2159 2166 2170 2172 2173 2174 2175 2177 2179 2208 2208 2228 REVIEW ARTICLE bioresources.com . "Nanocellulose in packaging," BioResources 12(1), 2143-2233. 2144 Keywords: Barrier properties; Water vapor transmission; Food shelf life; Oxygen transmission; Packages; Cellulose nanomaterials Contact information: a: Department of Forest Biomaterials, College of Natural INTRODUCTIONThere has been explosive growth in the publication of peer-reviewed articles that combine key words related to "packaging" and "cellulose," in combination with the terms "nanocellulose," "nanocrystal*," or "nanofibril*". As of November 2016, a search of this combination of terms showed about as many publications since the start of 2015, compared to all preceding years combined. Given such an acceleration of research around the world, it makes sense to ask whether this high amount of research effort has yet borne significant fruit. In light of this question, the emphasis of this review article is on research publications that shed light on known challenges to the successful implementation of nanocellulose products to enhance the performance of packaging.In principle, a nano...

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Section: Highly Fibrillated Cellulosementioning

confidence: 99%

Nanocellulose in Thin Films, Coatings, and Plies for Packaging Applications: A Review

Hubbe

Ferrer

Tyagi

et al. 2017

BioRes

245

234

View full text Add to dashboard Cite

show abstract

“…The adhesion and surface properties of nanocellulose are key points that have to be considered regarding the aforementioned uses, for instance, in composites or in barrier materials [1,[9][10]. Studies on the surface properties of nanofibres have been generally focused on i) the determination of "surface" charge by zeta potential measurements or by polyelectrolyte titration, ii) the determination of the amount of carboxylate and aldehyde groups formed during chemical pre-treatments, by conductometric and potentiometric titrations and, iii), the assessment of the chemical composition and reactivity of the nanocellulose surface during chemical pre-treatments/surface modification, by using X-ray photoelectron spectroscopy [1,10].…”

Section: Page 3 Of 26mentioning

confidence: 99%

Surface properties of distinct nanofibrillated celluloses assessed by inverse gas chromatography

Gamelas

Pedrosa

Lourenço

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Surface properties of distinct nanofibrillated celluloses assessed by inverse gas chromatography, Colloids and Surfaces A: Physicochemical and Engineering Aspects (2015), http://dx.doi.org/10.1016/j.colsurfa. 2014.12.058 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Higher specific interactions with polar probes were found for enzymatic nanocellulose. The higher values of s d and specific interactions observed for the enzymatic nanocellulose could partly be due to the higher crystallinity of this sample. On the other hand, the increase of the acidity/basicity ratio (as well as of the s d value) for the 15-passes vs. 5-passes TEMPO nanofibres was attributed to a higher exposition of the hydroxyl groups of cellulose at the surface of the former material.

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“…The MFC suspension transmittance was measured using a spectrophotometer (Shimadzu UV-1800 UV-VIS, Shimadzu Corporation, Japan) at 0.1 % consistency, as described by Kangas et al [44], with the following modifications. A MFC sample was dispersed in Milli-Q water by magnetic stirring at 300 rpm for 15 min, followed by 1 min high-shear mixing at 4000 rpm (IKA T25 Ultra Turrax, Ika labortechnik, Germany).…”

Section: Analytic Toolsmentioning

confidence: 99%

Microcrystalline cellulose property–structure effects in high-pressure fluidization: microfibril characteristics

et al. 2016

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The raw material properties and characteristics of four different microfibrillated celluloses (MFCs) produced by microfluidizing were investigated. The cellulose materials were never-dried and dried microcrystalline cellulose (MCC), a commercial MCC, and an enzymatic-mechanically treated softwood sulfite pulp. The study comprises extensive initial and final physical, structural, and molecular-level analyses. The results indicated that raw material properties related to both fibril aggregation, structural compaction levels and geometric heterogeneity and interaction levels essentially affected both the process and the final MFC properties. The increase in specific surface area (SSA) was minor for the enzymatic-mechanically treated raw material, while MCC showed a larger increase of several orders of magnitude in SSA. The drying of particulate MCC was reflected both in improved fibrillation efficiency and in the final MFC properties, primarily observed as enhanced SSA, in fibril dimensions and in gel strength. The feed consistency (7.5 %) applicable with dried, particulate MCC in fluidization was more than any of those hitherto reported. The study indicated that MCC can facilitate energy-efficient MFC production with the application of fluidization technology.

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Characterization of fibrillated celluloses. A short review and evaluation of characteristics with a combination of methods

Cited by 116 publications

References 0 publications

Nanocellulose in Thin Films, Coatings, and Plies for Packaging Applications: A Review

Nanocellulose in Thin Films, Coatings, and Plies for Packaging Applications: A Review

Surface properties of distinct nanofibrillated celluloses assessed by inverse gas chromatography

Microcrystalline cellulose property–structure effects in high-pressure fluidization: microfibril characteristics

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