Study on the Behavior of BOPP Film Treated by Corona Discharge

Ding, Liping; Zhang, Xiaoyong; Wang, Yanqing

doi:10.3390/coatings10121195

Cited by 12 publications

(12 citation statements)

References 35 publications

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“…Despite the use of ambient air as a working gas for experiments, nitrogen atoms appeared at the BOPP surface in a negligible concentration (1–2.2%). A similar outcome was also monitored in other studies [ 29 , 36 , 37 ]. Dorai and Kushner explained the poor incorporation of N -based functional groups due to the low reactivity of N atoms towards the plasma-treated PP surface.…”

Section: Resultssupporting

confidence: 76%

Changes in Surface Characteristics of BOPP Foil after Treatment by Ambient Air Plasma Generated by Coplanar and Volume Dielectric Barrier Discharge

et al. 2021

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Biaxially oriented polypropylene (BOPP) is a highly transparent polymer defined by excellent mechanical and barrier properties applicable in the food packaging industry. However, its low surface free energy restricts its use in many industrial processes and needs to be improved. The presented study modifies a BOPP surface using two different atmospheric-pressure plasma sources operating in ambient air and capable of inline processing. The volume dielectric barrier discharge (VDBD) and diffuse coplanar surface barrier discharge (DCSBD) were applied to improve the wettability and adhesion of the 1–10 s treated surface. The changes in morphology and surface chemistry were analyzed by SEM, AFM, WCA/SFE, and XPS, and adhesion was evaluated by a peel force test. Comparing both plasma sources revealed their similar effect on surface wettability and incorporation of polar functional groups. Additionally, higher surface roughness in the case of VDBD treatment contributed to slightly more efficient adhesion in comparison to DCSBD. Although we achieved comparable results for both plasma sources in the term of enhanced surface wettability, degree of oxidation, and stability of induced changes, DCSBD had less effect on the surface deterioration than VDBD, where surface structuring caused an undesirable haze.

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Section: Resultssupporting

confidence: 76%

Changes in Surface Characteristics of BOPP Foil after Treatment by Ambient Air Plasma Generated by Coplanar and Volume Dielectric Barrier Discharge

et al. 2021

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“…However, bond strength depends largely on the reaction of the PUR adhesive with polar groups such as –NH 2 on the PA film or –OH functionalities that are found in the corona-treated polyolefin films. 25,26 The aromatic region in the 1 H-NMR spectrum of the cured PUR adhesive (Fig. 7B) confirms the conversion of free isocyanate end groups to carbamate, e.g.…”

Section: Resultsmentioning

confidence: 69%

Delamination of polyamide/polyolefin multilayer films by selective glycolysis of polyurethane adhesive

et al. 2022

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“…The efficiency of plasma treatment on different materials has been assessed in various studies, such as in [ 33 ] treating poly(lactide) (PLA) films by diffuse coplanar surface barrier discharge plasma, in [ 34 ] it was treated by oxygen plasma the silicon, silicon dioxide and glass, in [ 35 ] it was treated biaxially oriented polypropylene (BOPP) film by corona discharge or [ 36 ] epoxy polymer in air DBD and gliding arc, the results showing significant effects of the plasma treatment on polymeric surfaces. The most common surface modifications reported refer to wettability increasing of treated surfaces, surface oxidation, increase of adhesion forces and morphological changes,…”

Section: Discussionmentioning

confidence: 99%

Treatment of Polymeric Films Used for Printed Electronic Circuits Using Ambient Air DBD Non-Thermal Plasma

et al. 2022

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This study aims to present the properties of the polymeric films after being subjected to DBD plasma treatment in atmospheric conditions. Three different commercial films of polyester (Xerox Inkjet transparencies and Autostat CUS5 Clear film) and polycarbonate (Lexan™ 8010 MC) have been considered for the tests. The surface wettability has been evaluated based on static water contact angle (WCA) for different treatment times varying between 0.2 s and 30 s, the results revealing a maximum WCA decrease compared to a pristine of up to 50% for Xerox films, 75% for Autostat and 70% for Lexan. The persistence of the hydrophilic effect induced by the plasma treatment has also been verified for up to 72 h of storage after treatment, the results indicating a degradation of the treatment effects starting with the first hours after the treatment. The WCA stabilizes to a value inferior to the one corresponding to pristine in the first 24 h after plasma treatment. The adhesion forces, as well as preliminary surface morphology evaluations have been determined for the considered films using atomic force microscopy (AFM). The adhesion forces are increased together with the prolongation of the plasma treatment application time, varying from initial values of 165 nN, 58 nN and 204 nN to around 390 nN, 160 nN and 375 nN for Xerox, Autostat and Lexan films, respectively, after 5 s of DBD treatment. For the considered materials, the results revealed that the plasma treatment determines morphological changes of the surfaces indicating an increase in surface roughness.

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Study on the Behavior of BOPP Film Treated by Corona Discharge

Cited by 12 publications

References 35 publications

Changes in Surface Characteristics of BOPP Foil after Treatment by Ambient Air Plasma Generated by Coplanar and Volume Dielectric Barrier Discharge

Changes in Surface Characteristics of BOPP Foil after Treatment by Ambient Air Plasma Generated by Coplanar and Volume Dielectric Barrier Discharge

Delamination of polyamide/polyolefin multilayer films by selective glycolysis of polyurethane adhesive

Treatment of Polymeric Films Used for Printed Electronic Circuits Using Ambient Air DBD Non-Thermal Plasma

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