New ways to enhance the functionality of paperboard by surface treatment – a review

Andersson, Caisa

doi:10.1002/pts.823

Cited by 178 publications

(176 citation statements)

References 90 publications

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“…The good barrier performance of separate biopolymer films for packaging applications has been documented in some reviews [1,2]. Several biopolymers have already been used as coatings for paper and paperboard, such as polysaccharides (starch and cellulose derivatives, chitosan, and alginates), proteins (casein, whey, collagen, soya, and gluten), lipids (bees and carnauba wax, and free fatty acids) and polyesters (polyhydroxyalkanoates (PHA) and polylactic acid (PLA)) [3,4]. As many bio-based polymers are hydrophilic, however, their gas barrier properties and mechanical properties strongly depend on the ambient humidity, which may reduce their performance as packaging material in comparison to synthetic polymers.…”

Section: Introductionmentioning

confidence: 99%

Bio-Based Coatings for Paper Applications

2015

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Abstract:The barrier resistance and wettability of papers are commonly controlled by the application of petroleum-based derivatives such as polyethylene, waxes and/or fluor-derivatives as coating. While surface hydrophobicity is improved by employing these polymers, they have become disfavored due to limitations in fossil-oil resources, poor recyclability, and environmental concerns on generated waste with lack of biodegradation. Alternatively, biopolymers including polysaccharides, proteins, lipids and polyesters can be used to formulate new pathways for fully bio-based paper coatings. However, difficulties in processing of most biopolymers may arise due to hydrophilicity, crystallization behavior, brittleness or melt instabilities that hinder a full exploitation at industrial scale. Therefore, blending with other biopolymers, plasticizers and compatibilizers is advantageous to improve the coating performance. In this paper, an overview of barrier properties and processing of bio-based polymers and their composites as paper coating will be discussed. In particular, recent technical advances in nanotechnological routes for bio-based nano-composite coatings will be summarized, including the use of biopolymer nanoparticles, or nanofillers such as nanoclay and nanocellulose. The combination of biopolymers along with surface modification of nanofillers can be used to create hierarchical structures that enhance hydrophobicity, complete barrier protection and functionalities of coated papers. OPEN ACCESSCoatings 2015, 5 888

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Section: Introductionmentioning

confidence: 99%

Bio-Based Coatings for Paper Applications

2015

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“…Therefore, some efforts have been made to develop paper coated with bioplastics to substitute non-biodegradable polymers [7][8][9][10][11][12][13] to benefit from specific properties of the coating and to maintain at the same time the biodegradability of cellulosic materials. Although the use of polylactic acid (PLA), thermoplastic starch and regenerated cellulose to coat paper has been tried in industrial applications, the penetration in the market is limited to now.…”

Section: Introductionmentioning

confidence: 99%

State of the Art in the Development and Properties of Protein-Based Films and Coatings and Their Applicability to Cellulose Based Products: An Extensive Review

et al. 2015

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Abstract:There is increasing research towards the substitution of petrochemicals by sustainable components. Biopolymers such as proteins, polysaccharides, and lipids derive from a variety of crop sources and most promisingly from waste streams generated during their processing by the agro food industry. Among those, proteins of different types such as whey, casein, gelatin, wheat gluten, soy protein or zein present a potential beyond the food and feed industry for the application in packaging. The general protein hydrophilicity promotes a good compatibility to polar surfaces, such as paper, and a good barrier to apolar gases, such as oxygen and carbon dioxide. The present review deals with the development of protein-based coatings and films. It includes relevant discussion for application in paper or board products, as well as an outlook on its future industrial potential. Proteins with suitable functionalities as food packaging materials are described as well as the different technologies for processing the coatings and the current state of the art about the coating formulations for selectively modulating barrier, mechanical, surface and end of life properties. Some insights onto regulations about packaging use, end of life and perspectives of such natural coating for decreasing the environmental impact of packages are given.

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“…Water vapour transport in the case of polymer material is affected by the thickness of the polymer and by humidity of the surroundings. [11,12] In order to obtain such polymer materials with optimal water vapour permeability for packaging of particular food it is important to adjust barrier properties of common polymer materials by incorporation of different additive types. [13,14] The possibility to improve the barrier performance of food polymer packaging by the application of nanocomposites is a very attractive approach and demands good knowledge about permeability, nanotechnology and influence of different substances.…”

Section: Water Vapour Permeabilitymentioning

confidence: 99%

Active Bilayer PE/PCL Films for Food Packaging Modified with Zinc Oxide and Casein

et al. 2015

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This paper studies the properties of active polymer food packaging bilayer polyethylene/polycaprolactone (PE/PCL) films. Such packaging material consists of primary PE layer coated with thin film of PCL coating modified with active component (zinc oxide or zinc oxide/casein complex) with intention to extend the shelf life of food and to maintain the quality and health safety. The influence of additives as active components on barrier, mechanical, thermal and antimicrobial properties of such materials was studied. The results show that, in comparison to the neat PE and PE/PCL films, some of PE/PCL bilayer films with additives exhibit improved barrier properties i.e. decreased water vapour permeability. Higher thermal stability of modified PE/PCL material is obtained due to a modified mechanism of thermal degradation. The samples with the additive nanoparticles homogeneously dispersed in the polymer matrix showed good mechanical properties. Addition of higher ZnO content contributes to the enhanced antibacterial activity of a material.

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New ways to enhance the functionality of paperboard by surface treatment – a review

Cited by 178 publications

References 90 publications

Bio-Based Coatings for Paper Applications

Bio-Based Coatings for Paper Applications

State of the Art in the Development and Properties of Protein-Based Films and Coatings and Their Applicability to Cellulose Based Products: An Extensive Review

Active Bilayer PE/PCL Films for Food Packaging Modified with Zinc Oxide and Casein

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