Effect of overlapping cellulose nanofibrils and nanoclay layers on mechanical and barrier properties of spray-coated papers

Oliveira, Maria Luiza Cafalchio de; Mirmehdi, Seyedmohammad; Scatolino, Mário Vanoli; Júnior, Mário Guimarães; Sanadi, Anand R.; Damásio, Renato Augusto Pereira; Tonoli, Gustavo Henrique Denzin

doi:10.1007/s10570-021-04350-3

Cited by 18 publications

(6 citation statements)

References 58 publications

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“…Other scientists also found that increasing tensile strength is often due to the increased interaction between the components, resulting in enhanced strength and reduced flexibility. , Further, the mechanical property of the films was significantly improved by the incorporation of ZnO nanoparticles into the chitosan/xanthan gum blend, demonstrating enhanced interaction between both the biopolymers and the nanofillers. The outcomes are consistent with earlier studies. – The composite films that are made using nanoclays/fibers and other nanofiller reinforcements have reported better mechanical ability. – The findings in this study demonstrate that all of the nanocomposites had higher tensile strengths than the pristine chitosan film (C). A greater surface area in the nanofiller encouraged interactions between nanoparticles and the polymer matrix, which improved the development of cross-linking between polymer chains, resulting in the emergence of stronger films .…”

Section: Resultssupporting

confidence: 91%

ZnO Nanoparticles-Reinforced Chitosan–Xanthan Gum Blend Novel Film with Enhanced Properties and Degradability for Application in Food Packaging

Tabassum,

Girdhar,

Kumar

et al. 2023

ACS Omega

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Nations all over the world are imposing ban on single-use plastics, which are difficult to recycle and lead to creations of nonsustainable and nondegradable piles. To match the requirement in the market, suitable food packaging alternatives have to be developed that are biodegradable and environment-friendly. The current work is designed for the fabrication of a novel nanocomposite by blending xanthan gum in a chitosan matrix and reinforcing it with ZnO nanoparticles, through a solution casting method. Surface morphology of the film was investigated through field emission scanning electron microscopy, along with energy-dispersive X-ray spectroscopy mapping, and characterized through thermogravimetric analysis, Fourier transform infrared (FTIR) spectroscopy, mechanical testing, and ultraviolet spectroscopy. FTIR spectroscopy analysis corroborated the interaction between the components and the H-bond formation. Polyelectrolyte complex formation materializes between the oppositely charged chitosan and xanthan gum, and further nanoparticle incorporation significantly improves the mechanical properties. The synthesized nanocomposite was found to have increases in the tensile strength and elongation at break of pure chitosan by up to 6.65 and 3.57 times, respectively. The transmittance percentage of the bionanocomposite film was reduced compared to that of the pure chitosan film, which aids in lowering the oxidative damage brought on by UV radiation in packed food products. Moreover, the film also showed an enhanced barrier property against water vapor and oxygen gas. The film was totally biodegradable in soil burial at the end of the second month; it lost almost around 88% of its initial weight. The fabricated film does not pose a threat to the environment and hence has great potential for application in the future sustainable food packaging industry.

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Section: Resultssupporting

confidence: 91%

ZnO Nanoparticles-Reinforced Chitosan–Xanthan Gum Blend Novel Film with Enhanced Properties and Degradability for Application in Food Packaging

Tabassum,

Girdhar,

Kumar

et al. 2023

ACS Omega

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“…It is interesting to see that CNF film had antioxidant activity and a small amount of total phenolics. This could be due to the attachment of residual pectin to the isolated CNFs [ 33 ]. CNFs/20% Pectin/PGE film showed antioxidant activity but, as expected, it was lower than that of Pectin/PEG nanoemulsion since the film contains 20% of Pectin/PEG.…”

Section: Resultsmentioning

confidence: 99%

“…CNFs can improve mechanical, barrier (air, moisture, oil, and thermal), and printability properties, and reduce paper weight products [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ]. Nevertheless, due to the negative effect of CNFs on the drainage of water during paper sheet formation as a result of their very small size, very high water holding capacity, and ability to fill empty spaces between the pulp fibers and clog pores of the wet web [ 27 , 29 , 30 ], applying CNFs as a surface coating after paper sheet formation instead of applying them as a paper additive has resulted in increasing interest for improving paper properties and the production of novel paper products [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 ]. Usually, paper coating materials are used in very small quantities and applied as a very thin layer, yet they bring about significant effects on paper properties.…”

Section: Introductionmentioning

confidence: 99%

Cellulose Nanofibers/Pectin/Pomegranate Extract Nanocomposite as Antibacterial and Antioxidant Films and Coating for Paper

et al. 2022

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Bio-based polymer composites find increasing research and industrial interest in different areas of our life. In this study, cellulose nanofibers (CNFs) isolated from sugar beet pulp and nanoemulsion prepared from sugar beet pectin and pomegranate extract (PGE) were used for making films and used as coating with antioxidant and antimicrobial activities for paper. For Pectin/PGE nanoemulsion preparation, different ratios of PGE were mixed with pectin using ultrasonic treatment; the antibacterial properties were evaluated to choose the formula with the adequate antibacterial activity. The antioxidant activity of the nanoemulsion with the highest antimicrobial activity was also evaluated. The nanoemulsion with the optimum antibacterial activity was mixed with different ratios of CNFs. Mechanical, greaseproof, antioxidant activity, and antibacterial properties of the CNFs/Pectin/PGE films were evaluated. Finally, the CNFs/Pectin/PGE formulation with the highest antibacterial activity was tested as a coating material for paper. Mechanical, greaseproof, and air porosity properties, as well as water vapor permeability and migration of the coated layer from paper sheets in different media were evaluated. The results showed promising applicability of the CNFs/Pectin/PGE as films and coating material with antibacterial and antioxidant activities, as well as good stability for packaging aqueous, fatty, and acidic food products.

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“…72,73 Excellent interfacial adhesion between nanocellulose fiber and the PHBV surface might have promoted higher energy absorption leading to enhanced elongation at break and tensile strength. 74 Nevertheless, an enhancement in tensile strength and reduction in Young's modulus upon cellulose coating onto the PHBV film (as compared with the corona-treated one) may arise due to the presence of a stronger hydrogen bonding interaction between the PHBV and coated cellulose, 75,76 thus making them an excellent choice for the flexible packaging applications.…”

Section: Mechanical Properties Of the Coated Filmmentioning

confidence: 99%

Integration of benzoic acid‐loaded nanocellulose fibers on biodegradable poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) matrix and its application into food preservation

Thodikayil,

Kumar,

Thakur

et al. 2024

Polymer Engineering & Sci

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An active food‐packaging film based on biodegradable poly(hydroxybutyrate‐co‐hydroxyvalerate) (PHBV) was fabricated by spraying benzoic acid (BZ)‐loaded nanocellulose dispersions on corona‐treated PHBV films. Corona treatment augmented surface hydrophilicity (contact angle: 46°) and roughness (~60 nm) of the film. While roughness (10 nm from 60 nm) and oxygen permeability (42 cc/m2 day from 205 cc/m2 day) significantly reduced with unaffected water vapor transmission rate, tensile strength (9.85 MPa) and elongation (1.96%) enhanced upon nanocellulose coating on the corona‐treated film. The BZ (23 wt% loading) containing coated film displayed excellent antibacterial activity up to 6 days, demonstrating immense potential in food‐packaging applications.Highlights Effect of corona treatment on hydrophobic poly(hydroxybutyrate‐co‐hydroxyvalerate) (PHBV) film was evaluated. Surface hydrophilicity and roughness were introduced on PHBV film after corona exposure. Antimicrobial‐loaded Nanofibrillated cellulose coating enhanced antibacterial activity of film preserving its mechanical and barrier properties. BZ‐NFC‐PHBV film increased the shelf life of watermelon juice.

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Effect of overlapping cellulose nanofibrils and nanoclay layers on mechanical and barrier properties of spray-coated papers

Cited by 18 publications

References 58 publications

ZnO Nanoparticles-Reinforced Chitosan–Xanthan Gum Blend Novel Film with Enhanced Properties and Degradability for Application in Food Packaging

ZnO Nanoparticles-Reinforced Chitosan–Xanthan Gum Blend Novel Film with Enhanced Properties and Degradability for Application in Food Packaging

Cellulose Nanofibers/Pectin/Pomegranate Extract Nanocomposite as Antibacterial and Antioxidant Films and Coating for Paper

Integration of benzoic acid‐loaded nanocellulose fibers on biodegradable poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) matrix and its application into food preservation

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