Recent Progress in Gas Barrier Thin Film Coatings on PET Bottles in Food and Beverage Applications

Nakaya, M; Uedono, Akira; Hotta, Atsushi

doi:10.3390/coatings5040987

Cited by 49 publications

(39 citation statements)

References 18 publications

(29 reference statements)

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“…A useful tool to evaluate the barrier properties of composite lms is the Barrier Improvement Factor (BIF), where BIF equals the permeability of pure polymer divided by the permeability of the composite (or coated substrate). 47,48 As shown in Fig. 5A for oxygen permeability, the prepared 5 bilayers (BL) of OMMT/PE coating displays a BIF of 6.4 on PE, which is a signicantly greater value than reported for bulk composites.…”

Section: Barrier Improvement Factormentioning

confidence: 79%

Gas barrier enhancement of uncharged apolar polymeric films by self-assembling stratified nano-composite films

et al. 2019

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The gas (O 2 and CO 2 ) permeability of an innovative stratified PE-organoclay (LLDPE/OMMT) nanoenabled composite films was studied for the first time and related to the self-assembly process driven by hydrophobic interactions. An 84.4% and a 70% reduction (i.e. a barrier improvement factor of about 6, sufficient for food packaging applications) were observed respectively in the oxygen and carbon dioxide permeability of the 5 bilayers coated film compared to the substrate, while only incorporating 2.4 v/v% of organoclay in the composite and increasing the thickness by 17.7%. Such drastic effect with so low amount of organoclays cannot be achieved by conventional melt blending/exfoliation of the clays into the polymer matrix and is due to a geometrical blocking effect of a brick-wall and compact layer structure of the impermeable clay tactoids. Mathematical prediction of oxygen barrier performance of PE/OMMT films has revealed that 12 bilayers would be necessary to further achieve a barrier improvement factor of 10.

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Section: Barrier Improvement Factormentioning

confidence: 79%

Gas barrier enhancement of uncharged apolar polymeric films by self-assembling stratified nano-composite films

et al. 2019

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“…Among rigid containers used in the food and beverage industry, PET bottles are the most widely studied plastic containers for gas barrier enhancement because of their industrial scale use. It should be stressed that the demand for high gas barrier PET bottles has been increasing because of the global trend in weight reduction, where thinner bottle walls show poorer gas barrier performance [69], and of a gradual increase of the applications of PET bottle formats, as reported in recent studies [70]. The results found in our studies are characteristic of high barrier material, normally associated with laminated films, opaque composites of various substrates, which may or may not contain aluminum foil or other metalized layers to improve the material properties [71].…”

Section: Water Vapor Barrier Propertiesmentioning

confidence: 96%

Surface Properties and Morphology of PET Treated by Plasma Immersion Ion Implantation for Food Packaging

SantAna¹

2018

NNOA

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In this work, surface properties of PET (Polyethylene Terephthalate) modified by Plasma Immersion (PI), and Plasma Immersion Ion Implantation (PIII) were studied. Nitrogen and sulfur hexafluoride plasmas were used in a vacuum system coupled to a radiofrequency (rf) generator (13.56 MHz). Infrared spectroscopy (ATR-FTIR) detected the presence of new molecular groups on the PET surface after the treatment. Measurements of the contact angle, Ɵ, revealed a strong dependence of the surface wettability on the plasma parameters, control of which allows the production of hydrophilic or hydrophobic surfaces. The ion fluence was modelled as function of the penetration depth using suitable software (SRIM 2008) and is useful to understand the damage caused by ion implantation of the PET (ρ = 1.39 g/cm 3). The optical transmittance of the treated material in the visible region, T (λ), depends on the gas used and the electrical configuration of the plasma. Water-vapor transmission rate (WVTR) revealed an increase in the barrier properties of the treated PET. PIII technique and N2 bombardment are more appropriate than plasma immersion and SF6 bombardment to increase T (λ) of PET in the visible region.

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“…In principle, there are two methods to deal with the poor barrier performance of conventional PET bottle. The first one is to cope with a barrier enhancement during the plastic production process, such as blending of melted PET resin before the shaping process with oxygen scavenger additives to reduce ingress of oxygen into PET bottles [242,243], while the second method is coating a barrier film on the plastic product after the production process, e.g. depositing a DLC barrier coating onto PET foils or bottles [244][245][246]…”

Section: Packaging Bottle With High Barrier Coating Depositionmentioning

confidence: 99%

Recent progress on non-thermal plasma technology for high barrier layer fabrication

Sang

Wang

Liu

et al. 2018

Plasma Sci. Technol.

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This review describes the application of non-thermal plasma (NTP) technology for high barrier layer fabrication in packaging area. NTP technology is considered to be the most prospective approaches for the barrier layer fabrication over the past decades due to unpollution, high speed, low-costing. The applications of NTP technology have achieved numerous exciting results in high barrier packaging area. Now it seemly demands a detailed review to summarize the past works and direct the future developments. This review focuses on the different NTP resources applied in the high barrier area, the role of plasma surface modification on packaging film surface properties, and the deposition of different barrier coatings based on NTP technology. In particular, this review emphasizes the cutting-edge technologies of NTP on interlayer deposition with organic, inorganic for multilayer barriers fabrication. The future prospects of NTP technology in high barrier film areas are also described.

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Recent Progress in Gas Barrier Thin Film Coatings on PET Bottles in Food and Beverage Applications

Cited by 49 publications

References 18 publications

Gas barrier enhancement of uncharged apolar polymeric films by self-assembling stratified nano-composite films

Gas barrier enhancement of uncharged apolar polymeric films by self-assembling stratified nano-composite films

Surface Properties and Morphology of PET Treated by Plasma Immersion Ion Implantation for Food Packaging

Recent progress on non-thermal plasma technology for high barrier layer fabrication

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