A Review on Barrier Properties of Nanocellulose and Polylactic acid Composites

Parvathy, S.; Sajith, Malavika; Sulthan, Rashid; Sreelekshmi, C; Sambhudevan, Sreedha; Shankar, Balakrishnan

doi:10.1088/1757-899x/1258/1/012017

Cited by 5 publications

(3 citation statements)

References 35 publications

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“…Nanocellulose films act as an effective barrier, reducing the permeability of gases and prolonging the shelf life of packaged products [78]. This can help preserve the freshness and quality of food and other sensitive products [79]. Nanocellulosebased coatings can be applied to packaging materials to enhance their performance [80].…”

Section: Applications Of Nanocellulosementioning

confidence: 99%

The Role of Microorganisms in the Isolation of Nanocellulose from Plant Biomass

Yahya,

Elarbash,

Bairwan

et al. 2023

Forests

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The isolation and bottom-up assembly of nano-cellulose by using microorganisms offers unique advantages that fine-tune and meet the main key design criteria of sustainability, rapid renewability, low toxicity and scalability for several industrial applications. As a biomaterial, several properties are required to maintain the quality and functional period of any product. Thus, researchers nowadays are extensively using microorganisms to enhance the yield and properties of plant nanocellulose. A microbial process requires approximately 20%–50% less energy compared to the chemical isolation process that consumes high energy due to the need for intense mechanical processing and harsh chemical treatments. A microbial process can also reduce production costs by around 30%–50% due to the use of renewable feedstocks, fewer chemical additives, and simplified purification steps. A chemical isolation process is typically more expensive due to the extensive use of chemicals, complex processing steps, and higher energy requirements. A microbial process also offers higher yields of nanocellulose with well-defined and uniform dimensions, leading to improved mechanical properties and enhanced performance in various applications, compared with the chemical isolation process, which may result in a wider range of nanocellulose sizes, potentially leading to variations in properties and performance. The present review discusses the role of different microorganisms (bacteria, yeasts and fungi) in the isolation and production of nanocellulose. The types and properties of nanocellulose from different sources are also discussed to show the main differences among them, showing the use of microorganisms and their products to enhance the yield and properties of nanocellulose isolation. Finally, the challenges and propositions regarding the isolation, production and enhancement the quality of nanocellulose are addressed.

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Section: Applications Of Nanocellulosementioning

confidence: 99%

The Role of Microorganisms in the Isolation of Nanocellulose from Plant Biomass

Yahya,

Elarbash,

Bairwan

et al. 2023

Forests

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“…Over the last two decades, great advances in the development of PLA/nanocellulose composites prepared by solution casting have been achieved [8,9]. However, even if casting/evaporation-based processing techniques facilitate good dispersion of the nanofillers in the matrix, the amount of solvent and the time required usually limit their industrial scaling, so conventional melt processing techniques are preferred for large-volume production [10].…”

Section: Introductionmentioning

confidence: 99%

Biobased Composites of Poly(Lactic Acid) Melt Compounded with Bacterial and Vegetal Nanocelluloses Incorporated through Different Strategies

Bovi,

Delgado,

de la Osa

et al. 2024

Polymers

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In the current contribution, bacterial nanocellulose obtained from a by-product of Kombucha tea production and vegetal nanocellulose isolated from milled rice husks were employed as fillers of PLA-based composites prepared by intensive mixing followed by compression molding. Given the challenges associated with the incorporation of nanocelluloses—initially obtained as aqueous suspensions—into melt compounding processes, and also with achieving a proper dispersion of the hydrophilic nanofillers within PLA, three different nanofibrils incorporation strategies were studied: i.e., direct mixing of dried milled nanocelluloses and PLA; masterbatching by solvent casting of native nanocelluloses followed by melt compounding; and masterbatching by solvent casting of acetylated nanocelluloses followed by melt compounding. Composites with varying filler content (from 0.5 wt.% to 7 wt.%) were characterized in terms of morphology, optical properties, and mechanical performance. Results revealed the relative suitability of each strategy employed to promote nanocelluloses dispersion within the PLA matrix. PLA/nanocellulose masterbatches prepared by solvent casting proved to be particularly useful for feeding the nanocelluloses into the processing equipment in a dry state with limited hornification. Acetylation also contributed to a better dispersion of both nanocelluloses within the PLA matrix, although no clear positive impact on the mechanical properties of the films was observed. Finally, filler loading played an important role in the films’ properties by increasing their stiffness while reducing their translucency.

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“…Well known for the good gas barrier in food packaging applications, − just recently nanocellulose as a natural biopolymer has been noticed for its potential as an additive for polar polymers, such as poly(vinyl alcohol) (PVA), , polyvinylamine (PVAm), , poly ether imide (PEI), and Pebax for the CO 2 separation. For example, carboxymethyl cellulose (CMC) was combined with MXene in a Pebax-based mixed matrix membrane for CO 2 separation from natural gas and flue gas, achieving the CO 2 permeance of 444 GPU and the CO 2 /CH 4 selectivity of 40.4 .…”

Section: Introductionmentioning

confidence: 99%

Pebax/Modified Cellulose Nanofiber Composite Membranes for Highly Enhanced CO₂/CH₄ Separation

Narkkun,

Kraithong,

Ruangdit

et al. 2023

ACS Omega

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A Review on Barrier Properties of Nanocellulose and Polylactic acid Composites

Cited by 5 publications

References 35 publications

The Role of Microorganisms in the Isolation of Nanocellulose from Plant Biomass

The Role of Microorganisms in the Isolation of Nanocellulose from Plant Biomass

Biobased Composites of Poly(Lactic Acid) Melt Compounded with Bacterial and Vegetal Nanocelluloses Incorporated through Different Strategies

Pebax/Modified Cellulose Nanofiber Composite Membranes for Highly Enhanced CO₂/CH₄ Separation

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A Review on Barrier Properties of Nanocellulose and Polylactic acid Composites

Cited by 5 publications

References 35 publications

The Role of Microorganisms in the Isolation of Nanocellulose from Plant Biomass

The Role of Microorganisms in the Isolation of Nanocellulose from Plant Biomass

Biobased Composites of Poly(Lactic Acid) Melt Compounded with Bacterial and Vegetal Nanocelluloses Incorporated through Different Strategies

Pebax/Modified Cellulose Nanofiber Composite Membranes for Highly Enhanced CO2/CH4 Separation

Contact Info

Product

Resources

About

Pebax/Modified Cellulose Nanofiber Composite Membranes for Highly Enhanced CO₂/CH₄ Separation