High barrier sustainable co-polymerized coatings

Pal, Lokendra; Joyce, Margaret; Fleming, Paul D.; Crétté, Stéphanie A.; Ruffner, Charles M.

doi:10.1007/s11998-008-9101-0

Cited by 7 publications

(5 citation statements)

References 5 publications

(3 reference statements)

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“…Uneven substrates require filling of all irregularities to reduce the occurrence of uncovered areas . It is common to treat the substrate surface with a pre‐coating to smooth the surface and as a result homogenize the thickness of the coating to avoid uncoated areas . Additionally, new application techniques such as curtain coating and spray coating follow the irregularities of the substrate, resulting in coatings with better surface coverage, even thickness and low coat weight …”

Section: Barrier Dispersion Coatingsmentioning

confidence: 99%

“…As shown in Table , the thermoplastics polymers are to some degree permeable to water vapour and also to other low molecular weight compounds such as gases . By incorporation of inorganic or organic fillers with certain geometries such as fibres, flakes, spheres or particulates, the barrier performance of thermoplastic polymer can be improved as in barrier dispersion coatings . The combination of thermoplastic polymers and fillers are referred to as thermoplastic composites.…”

Section: Thermoplastic Composite Filmsmentioning

confidence: 99%

“…1,18 It is common to treat the substrate surface with a pre-coating to smooth the surface and as a result homogenize the thickness of the coating to avoid uncoated areas. 19,20 Additionally, new application techniques such as curtain coating and spray coating follow the irregularities of the substrate, resulting in coatings with better surface coverage, even thickness and low coat weight. 13,21 THERMOPLASTIC COMPOSITE FILMS Thermoplastic polymer films such as those formed from polyethylene, polypropylene or polystyrene are widely used particularly for plastic packaging due to relatively low cost, the light weight, shatter resistance and good mechanical properties.…”

Section: Barrier Dispersion Coatingsmentioning

confidence: 99%

“…Numerous types of fillers are available for the thermoplastic composite formulation, such as silicates, graphite nanoplatelets and carbon nanotubes; however, the availability, platelet morphology (high aspect ratio and large specific surface area) and high cation exchange capacities of the clay fillers have attracted the majority of the composite development and investigation to provide barrier properties (Table ). These characteristics make thermoplastic composite fillers particularly effective to improve barrier properties.…”

Section: Thermoplastic Composite Filmsmentioning

confidence: 99%

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A Review of Thermoplastic Composites Vapour Permeability Models: Applicability for Barrier Dispersion Coatings

Martinez-Hermosilla

Mesic

Bronlund

2015

Packag. Technol. Sci.

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One of the purposes of thermoplastic composites films and barrier dispersion coatings is to minimize the permeation of gases. In both cases, fillers and other additives are added during the film preparation to improve barrier properties. A high level of understanding has resulted from the study of the interaction between filler and polymer phases of thermoplastic composites, and a number of models have been developed to predict the relative permeability of these materials. However, barrier dispersion coatings have not been modelled in this way. The aim of this review was to discuss similarities and differences of thermoplastic composites and barrier dispersion coatings that may influence the applicability of the models for barrier dispersion coatings applied to paper-based materials. The models were developed as a function of the amount of fillers added in thermoplastic composites films and geometrical characteristics of the fillers such as size, thickness, shape and the distribution of fillers in the film. Two-and three-dimensional models with oriented and random arrangement of fillers were presented. Due to the parallel orientation and the similar length and width of fillers used in barrier dispersion coatings, three-dimensional models were more suitable to predict relative permeability. These models assumed plate-or circular-shaped fillers with parallel orientation. In order to prove the models, experimental information was required. Very limited data for barrier dispersion coatings with varying the amount of fillers have been reported in the literature. For this reason, further experiments are required under varied combinations of aspect ratio and the volume fraction of fillers.

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Section: Barrier Dispersion Coatingsmentioning

confidence: 99%

Section: Thermoplastic Composite Filmsmentioning

confidence: 99%

Section: Barrier Dispersion Coatingsmentioning

confidence: 99%

Section: Thermoplastic Composite Filmsmentioning

confidence: 99%

See 2 more Smart Citations

A Review of Thermoplastic Composites Vapour Permeability Models: Applicability for Barrier Dispersion Coatings

Martinez-Hermosilla

Mesic

Bronlund

2015

Packag. Technol. Sci.

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“…More clearly, porosity is a measure of the gas/fluid storage capacity of a porous material, whereas permeability describes the conductivity of a porous material with respect to gas/fluid flow. Thus, permeability is related to the conectedness of the void spaces and the pore size of the porous medium, and can be calculated using a formula widely known as Darcy's law [70]:…”

Section: Permeability Diffusivity and H 2 Concentrationmentioning

confidence: 99%

Shaping Porous Materials for Hydrogen Storage Applications: A Review

Ren¹,

North²

2014

J. Technol. Innov. Renew. Energy

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Development of safe and effective hydrogen storage systems becomes a critical factor for further implementation of fuel cell and hydrogen technologies. Among new approaches aimed at improving the performance of such systems, the concept of porous materials-based adsorptive hydrogen storage is now considered as a long-term solution due to the reversibility, good kinetics and absence of thermal management issues. However, the low packing densities associated with the porous materials such as carbon structure materials, zeolites, metal-organic frameworks lead to the compromised volumetric capacity, potential pipe contaminations and difficulties in handling, when introducing the powdered adsorbents into hydrogen storage systems. Some efforts have been devoted to solve this problem by shaping the porous materials into beads, pellets or monoliths and achieve higher storage densities at more moderate temperatures and pressures. This review will firstly state the essential properties of shaped structures for hydrogen adsorption, and then highlight the recent attributes that potentially can be utilized to shape porous materials into specific configurations for hydrogen storage applications. Later, several testing techniques on structured porous material will be also discussed.

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