The improvement in gas barrier performance and optical transparency of DLC-coated polymer by silicon incorporation

Abbas, Ghulam; Papakonstantinou, Pagona; Okpalugo, T.I.T.; McLaughlin, James; Filik, Jacob; Harkin‐Jones, Eileen

doi:10.1016/j.tsf.2004.11.174

Cited by 45 publications

(29 citation statements)

References 21 publications

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“…The D-band in the micro-Raman spectra represents disorder in the sp 2 rings [38]. Therefore, an increase in the I D /I G ratio (40.6) is indicative of disorder in the sp 2 ring clusters conceivably due to graphitization [39]. Thus incorporation of Si in the C network would allow to preserve the coating structure by delaying graphitization to temperatures above 400 1C in contrast to that observed in case of H-DLC.…”

Section: Role Of Si In Preserving the Coating Structurementioning

confidence: 99%

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The high temperature tribological behavior of Si, O containing hydrogenated diamond-like carbon (a-C:H/a-Si:O) coating against an aluminum alloy

Bhowmick

Banerji

Lukitsch

et al. 2015

Wear

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Section: Role Of Si In Preserving the Coating Structurementioning

confidence: 99%

“…It is well known that Si atoms cannot form sp 2 bonds (π bonds) with C [39]. Therefore, the Si-incorporation may lead to opening up of the sp 2 carbon rings and decrease in the π-π cluster size.…”

Section: Role Of Si In Preserving the Coating Structurementioning

confidence: 99%

The high temperature tribological behavior of Si, O containing hydrogenated diamond-like carbon (a-C:H/a-Si:O) coating against an aluminum alloy

Bhowmick

Banerji

Lukitsch

et al. 2015

Wear

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“…The film deposited from TMS contained O, H and Si that formed backbone structures and H terminations in the film. Abbas et al analyzed the sp 3 /(sp 2 + sp 3 ) ratio of a-C:H films deposited from acetylene and TMS, by X-ray photoemission spectroscopy (XPS) (7) . They revealed that the sp 3 /(sp 2 + sp 3 ) ratios were 52.4 % and 69.3 % when the number density of Si was 1.5 % and 21.5 %, respectively.…”

Section: Deposition From Tetramethylsilanementioning

confidence: 99%

Preparation of Amorphous Carbon Films and Evaluation of Its Optical Properties and Gas Barrier Property

Ohsone

Nishi

Saito

et al. 2009

JMMP

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Hydrogenerated amorphous carbon (a-C:H) films can improve oxygen gas barrier characteristics of plastic food containers, by coating it on the surfaces of such containers, and is intended to enhance the preservative quality. However, it has a problem that the degradation of optical transparency in the visible light range blocks the view of the inner content. In this study, we aimed to reduce the oxygen transmission rate (OTR) as well as to improve optical transparency, and fabricated a-C:H films by the pulse plasma chemical vapor deposition (CVD) method on polyethylene terephthalate (PET) films. First, it is clarified that the gas barrier performance in the a-C:H film in the vicinity of the PET boundary surface was lower than that of bulk a-C:H film. Secondly, the OTR and optical transparency of a-C:H films deposited not only from C 2 H 2 but also from Si(CH 3 ) 4 were investigated in detail. The a-C:H film deposited from Si(CH 3 ) 4 shows high transmittance of 87% for visible light with a relatively low OTR of 3.2 cc/(m 2 · atm · day).

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“…Hegemann [3] has recently reported plasma polymer coatings on polymer materials. Similarly, Abbas et al [4] and Ogino et al [5] had improved the gas barrier properties by depositing DLC coating on polymer substrates using plasma chemical vapor deposition technique. Utilizing plasma resources, Hubacek et al [6] deposited carbon coatings and Farhat et al [7] deposited polymer coatings on polymer substrates to enhance biocompatibility.…”

Section: Introductionmentioning

confidence: 99%

Development of diamond-like-carbon coated abaca-reinforced polyester composites for hydrophobic and outdoor structural applications

et al. 2015

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This study presents the development of abaca fabric-reinforced polyester composites for outdoor applications having hydrophobic surface quality and enhanced mechanical properties. Diamond-like carbon (DLC) coatings of 20-135 nm was deposited without interlayer, directly on 2.5-mm thick abaca/ polyester composites using filtered cathode vacuum arc system. Before film deposition, the substrate plasma etching was performed for better film adhesion. Microstructural studies include Raman Spectroscopy that confirms the formation of DLC structure with higher graphitic contents; Scanning Electron Microscopy and Atomic Force Microscopy for observation of coating coverage, surface roughness, and topography, respectively. Contact angle measurement was conducted to investigate surface wettability. After achieving hydrophobic surface quality from 76°to 98°, the research was extended to get better structural properties. The nanohardness of uncoated polymers was enhanced from 536 to 2513 MPa by introducing 150-nm Ti interlayer while keeping the same hydrophobic properties. Detailed tribological studies were carried out to understand wear behavior of uncoated and DLC-coated polymer composites with and without interlayer effects.

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The improvement in gas barrier performance and optical transparency of DLC-coated polymer by silicon incorporation

Cited by 45 publications

References 21 publications

The high temperature tribological behavior of Si, O containing hydrogenated diamond-like carbon (a-C:H/a-Si:O) coating against an aluminum alloy

The high temperature tribological behavior of Si, O containing hydrogenated diamond-like carbon (a-C:H/a-Si:O) coating against an aluminum alloy

Preparation of Amorphous Carbon Films and Evaluation of Its Optical Properties and Gas Barrier Property

Development of diamond-like-carbon coated abaca-reinforced polyester composites for hydrophobic and outdoor structural applications

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