Nucleation and growth of gas barrier aluminium oxide on surfaces of poly(ethylene terephthalate) and polypropylene: effects of the polymer surface properties

Deng, Changsheng; Assender, Hazel E.; Dinelli, Franco; Kolosov, Oleg; Briggs, G. A. D.; Miyamoto, Takashi; Tsukahara, Yusuke

doi:10.1002/1099-0488(20001201)38:23<3151::aid-polb150>3.0.co;2-q

Cited by 40 publications

(27 citation statements)

References 17 publications

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“…Similar observations results were reported by Deng et al [99] for the e-beam evaporation deposition of Al 2 O 3 during which the different interfacial interactions between the deposited Al 2 O 3 and various polymeric substrates resulted either in a layer-by-layer (on PET) or an island (on PP) growth mode. This directly impacts the choice of the substrate for desired gas barrier applications where a layer-by-layer will give rise to a more densely packed film.…”

Section: Examples Of Structural Engineering Via Seeding and Growthsupporting

confidence: 89%

Inorganic Thin Film Deposition and Application on Organic Polymer Substrates

et al. 2017

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This review details the emerging area of inorganic thin film coatings on polymer substrates, from examples of applications through to the fabrication processes and the underlying growth mechanism(s). Of particular focus is the use of physical vapor deposition to deposit thin metal and/or metal oxide films onto polymeric materials. This primary focus highlights an area of research, that is, gaining in popularity, as researchers attempt to provide insight into the adaption of a well-established manufacturing process to be compatible with the ever expanding range of polymer substrates. The motivation for doing so comes from the evolution of existing industry (i.e., the semi-conductor sector) to fabricate new devices (i.e., flexible electronics). In addition, the research challenges faced in achieving evaporated and sputtered thin film coatings on polymeric substrates, such as mechanical and thermal considerations will be discussed. a) Metals do not display a glass transition temperature; b) amorphous polymers that do not display crystallite melting; c) semicrystalline polymers.Figure 1 5. Possible mechanisms for the nucleation and growth of sputtered nanoparticles into IL substrate. Reproduced with permission from ref.[104]

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Section: Examples Of Structural Engineering Via Seeding and Growthsupporting

confidence: 89%

Inorganic Thin Film Deposition and Application on Organic Polymer Substrates

et al. 2017

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“…An increase in thickness of the oxide induces a decrease in permeability that is connected to the microstructure of the film (Deng, 2000). Also, thickness is another critical value that the barrier properties exhibits a minimum for a specific thickness value (Leterrier, 2003).…”

Section: Inorganic Barrier Materialscontrasting

confidence: 87%

High-barrier films for flexible organic electronic devices

Georgiou

Logothetidis

2015

Handbook of Flexible Organic Electronics

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“…Results of this investigation are summarized in Table II. [19][20][21] Comparison of rms values of post-treated AlO x coated BOPP A and B with nonpost-treated samples suggests that plasma post-treatment smoothens the AlO x surface, which may result in a densification of the outermost atomic layers of the coating; thus explaining the barrier improvement with post-treatment (for BOPP B, see Table I). But despite having the highest surface roughness, BOPP C still shows acceptable OTR values, which supports the idea that nanoscale surface roughness of the plain film is not the main factor regarding oxygen barrier performance after AlO x coating.…”

Section: A Barrier Performancementioning

confidence: 99%

Characterization studies of aluminum oxide barrier coatings on polymeric substrates

Struller

Kelly

Copeland³

et al. 2012

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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Articles you may be interested inFabrication of super-hydrophobic surfaces on aluminum alloy substrates by RF-sputtered polytetrafluoroethylene coatings AIP Advances 4, 031323 (2014); 10.1063/1.4868363 Low-temperature atomic layer deposition of Al2O3 on blown polyethylene films with plasma-treated surfaces J. Vac. Sci. Technol. A 31, 01A129 (2013); 10.1116/1.4768171 Nanotribological characterization of fluoropolymer thin films for biomedical micro/nanoelectromechanical system applications J. Vac. Sci. Technol. A 23, 804 (2005); 10.1116/1.1861939 Plasma polymerization and deposition of linear, cyclic and aromatic fluorocarbons on (100)-oriented single crystal silicon substratesAluminum coatings are widely used as oxygen and water barrier layers on food packaging materials to protect the product from contamination and to extend its shelf life. Thin layers of aluminum, of the order of a few tens of nanometers, are thermally evaporated onto polymeric web in high speed roll-to-roll vacuum metallizers. More recently, transparent barrier layers, based on silica or aluminum oxide, have been introduced to allow product visibility and provide retortable, sterilizable, or microwaveable packaging. In all cases, though, the barrier characteristics are critically dependent on both the structure and properties of the coating and the nature and surface properties of the polymer film substrate. This paper, therefore, reports on characterization trials of aluminum oxide (AlO x ) coatings deposited onto polyethylene terephthalate (PET) and biaxially oriented polypropylene (BOPP) film substrates. Coating structures and properties have been investigated by scanning electron microscopy and atomic force microscopy; the influence of process parameters on barrier levels has been determined; surface energies have been determined through contact angle measurements; and coating-to-substrate adhesion has been assessed using "pull-off" tests. The main findings of this study are that the barrier performance of AlO x coated PET and BOPP films strongly depends on the surface properties of the plain film and the aluminum oxide film growth. While AlO x coated PET films deliver consistent barrier results, BOPP reveals considerable variations, depending on the individual substrate.

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Nucleation and growth of gas barrier aluminium oxide on surfaces of poly(ethylene terephthalate) and polypropylene: effects of the polymer surface properties

Cited by 40 publications

References 17 publications

Inorganic Thin Film Deposition and Application on Organic Polymer Substrates

Inorganic Thin Film Deposition and Application on Organic Polymer Substrates

High-barrier films for flexible organic electronic devices

Characterization studies of aluminum oxide barrier coatings on polymeric substrates

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