Cellulose nanofibrils in biobased multilayer films for food packaging

Vähä-Nissi, Mika; Koivula, Hanna; Räisänen, Heidi; Vartiainen, Jari; Ragni, Pietro; Kenttä, Eija; Kaljunen, Timo; Malm, Tero; Minkkinen, Hannu; Harlin, Ali

doi:10.1002/app.44830

Cited by 43 publications

(22 citation statements)

References 27 publications

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“…The potential of using CNF in paper coatings has been intensely studied for the formation of a continuous layer on paper surfaces to induce suitable qualities such as mechanical strength, fire retardancy and water/gas impermeability [ 79 , 80 , 81 , 82 , 83 , 84 , 85 ]. Because the properties of coated surfaces depend highly on the CNF distribution and the corresponding layer thickness, an appropriate coating formulation is critical to achieve the desired features.…”

Section: Nanocellulose As Coating Materialsmentioning

confidence: 99%

Cellulose Nanomaterials—Binding Properties and Applications: A Review

et al. 2018

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Cellulose nanomaterials (CNs) are of increasing interest due to their appealing inherent properties such as bio-degradability, high surface area, light weight, chirality and the ability to form effective hydrogen bonds across the cellulose chains or within other polymeric matrices. Extending CN self-assembly into multiphase polymer structures has led to useful end-results in a wide spectrum of products and countless innovative applications, for example, as reinforcing agent, emulsion stabilizer, barrier membrane and binder. In the current contribution, after a brief description of salient nanocellulose chemical structure features, its types and production methods, we move to recent advances in CN utilization as an ecofriendly binder in several disparate areas, namely formaldehyde-free hybrid composites and wood-based panels, papermaking/coating processes, and energy storage devices, as well as their potential applications in biomedical fields as a cost-effective and tissue-friendly binder for cartilage regeneration, wound healing and dental repair. The prospects of a wide range of hybrid materials that may be produced via nanocellulose is introduced in light of the unique behavior of cellulose once in nano dimensions. Furthermore, we implement some principles of colloidal and interfacial science to discuss the critical role of cellulose binding in the aforesaid fields. Even though the CN facets covered in this study by no means encompass the great amount of literature available, they may be regarded as the basis for future developments in the binder applications of these highly desirable materials.

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Section: Nanocellulose As Coating Materialsmentioning

confidence: 99%

Cellulose Nanomaterials—Binding Properties and Applications: A Review

et al. 2018

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“…The NFC layer on the bio-HDPE led to a decrease in oxygen permeability (both at 0% RH and 80% RH) and improved grease resistance. The NFC layer loading did not compromise the already good water vapour barrier of neat bio-HDPE [ 57 ].…”

Section: Nanocellulose Applications In Food Packagingmentioning

confidence: 99%

“…The excellent dispersibility of nanocellulose in water makes it very attractive as an aqueous coating that can be applied as a pure nanocellulose thin layer or as a composite with other traditional coating materials [ 19 ]. The use of nanocellulose as coating can inherently provide enhanced gas barrier and grease resistance to the substrates used [ 51 , 52 , 53 , 54 , 56 , 57 , 58 ].…”

Section: Nanocellulose Applications In Food Packagingmentioning

confidence: 99%

Nanocellulose Bio-Based Composites for Food Packaging

et al. 2020

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The food industry is increasingly demanding advanced and eco-friendly sustainable packaging materials with improved physical, mechanical and barrier properties. The currently used materials are synthetic and non-degradable, therefore raising environmental concerns. Consequently, research efforts have been made in recent years towards the development of bio-based sustainable packaging materials. In this review, the potential of nanocelluloses as nanofillers or as coatings for the development of bio-based nanocomposites is discussed, namely: (i) the physico-chemical interaction of nanocellulose with the adjacent polymeric phase, (ii) the effect of nanocellulose modification/functionalization on the final properties of the composites, (iii) the production methods for such composites, and (iv) the effect of nanocellulose on the overall migration, toxicity, and the potential risk to human health. Lastly, the technology readiness level of nanocellulose and nanocellulose based composites for the market of food packaging is discussed.

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“…Cellulose nanofibril (CNF), also referred to as nanocellulose, is one of the most promising candidate for use as a sustainable barrier material in packaging industry. As well as being completely renewable, biodegradable, and safe to use, CNFs also possess exceptional oxygen, grease, and mineral oil barrier properties . CNF is typically produced from wood pulp by high energy demanding grinding and pressure‐homogenization processes, but also certain bacteria can produce a three‐dimensional hydrogels consisting of pure CNFs.…”

Section: Introductionmentioning

confidence: 99%

Mechanical recycling of nanocellulose containing multilayer packaging films

Vartiainen

Pasanen

Kenttä

et al. 2018

J of Applied Polymer Sci

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The aim of this study was to demonstrate mechanical recycling of low density polyethylene (LDPE) films coated with a thin layer of cellulose nanofibrils (CNFs). CNF acts as an effective barrier against oxygen and mineral oil residues. Two different CNF grades were tested, and both were applied onto plasma activated LDPE film using a pilot coating line. The coated films were shredded with the help of liquid nitrogen, compacted and compounded with virgin LDPE and compatibilizer, and processed into cast films and injection molded test specimens. The CNF coatings were completely blent as microscale agglomerates in the LDPE matrix. The effect of these agglomerates on the barrier and heat sealing properties was statistically insignificant compared to recycled uncoated LDPE. The mechanical properties were only moderately changed. CNF‐coated LDPE films can therefore be recycled back into films without sacrificing the characteristic properties of the base polymer. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46237.

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Cellulose nanofibrils in biobased multilayer films for food packaging

Cited by 43 publications

References 27 publications

Cellulose Nanomaterials—Binding Properties and Applications: A Review

Cellulose Nanomaterials—Binding Properties and Applications: A Review

Nanocellulose Bio-Based Composites for Food Packaging

Mechanical recycling of nanocellulose containing multilayer packaging films

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