Wettability and Aging of Polymer Substrates after Atmospheric Dielectrical Barrier Discharge Plasma on Demand Treatment

Dongen, M.H.A. van; Verkuijlen, Renee; Aben, R.; Bernards, J.P.C.

doi:10.2352/j.imagingsci.technol.2013.57.3.030503

Cited by 10 publications

(9 citation statements)

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“…For both untreated PC and AP10‐PC, the decoupling of C1s scans (Figure 3(c),(d), left) only showed one peak (C‐O) associated with O at ~286.3 eV, the peak for C=O (or carbonate O– C=O) at 288–289 eV was absent. The absence of C=O peak for untreated PC had been documented in other studies, 46–48 potentially due to the sharing of electron clouds between carbon atoms linked to oxygen in C‐O and C=O (or O‐C=O) within the PC chains. In addition to an increased O content, the C1s scan of UVO‐PC (Figure 3(e), left) had two distinct peaks, 286.3 eV (for C‐O) and 289.2 eV (for C=O and/or O‐C=O), with the latter probably attributed to the carboxylate species, either in the PC chains or from the chemisorbed CO 2 .…”

Section: Resultssupporting

confidence: 56%

“…In order to understand how the oxidation extent of PC affects the interactions between PC and pNIPAAm, the Flory‐Huggins interaction parameter ( χ ) and the interaction energy of mixing (Δ G mix ) between pNIPAAm and various oxidized states of PC were estimated 46,48,49 . Based on earlier studies, 43 while plasma treatment penetrated relatively deep (>200 nm) for pure PC, the molecular weight reduction of plasma treated PC was minimum (dropped from ~40 kg/mol to ~30 kg/mol after 1 h of oxygen plasma treatment).…”

Section: Resultsmentioning

confidence: 99%

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Retention of poly(N‐isopropylacrylamide) thin films on polycarbonate via polymer interdiffusion

Newby

Malekzadeh

Alghunaim

2020

Journal of Polymer Science

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This study explored the possibility of polymer interdiffusion for retaining thermoresponsive poly(N-isopropylacrylamide) (pNIPAAm) on polycarbonate (PC). It was hypothesized that interdiffusion could be facilitated either by increasing the annealing temperature or by treating PC using air plasma (AP) and ultraviolet ozone (UVO). The results showed that increasing annealing temperature only moderately improved pNIPAAm retention. Treating PC with AP led to an increase in surface-active groups and a greatly enhanced retention of pNIPAAm. UVO treatment, however, severely damaged the PC layer with no noticeable enhancement on pNIPAAm retention. The retained pNIPAAm films on PC exhibited thermoresponsive behavior as evidenced by water contact angle and desired cell attachment/detachment behaviors. These results illustrate the simplicity of using polymer interdiffusion to successfully retain pNIPAAm films on a polymer, and the resulting substrates would be less expensive and more versatile than those retained on brittle supports (e.g., glass) for applications that require resilient thermoresponsive substrates.

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Section: Resultssupporting

confidence: 56%

Section: Resultsmentioning

confidence: 99%

Retention of poly(N‐isopropylacrylamide) thin films on polycarbonate via polymer interdiffusion

Newby

Malekzadeh

Alghunaim

2020

Journal of Polymer Science

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“…Opposed to polymers predominantly crystalline, which have a more rigid structure and have a lower aging rate, amorphous polymers have greater mobility in their polymeric chains and are more likely to aging effect. After some time of storage, hydrophilicity of the plasma treated films is reduced due to the reorientation of functional groups formed on the surface toward bulk material and the diffusion of these groups on the polymeric matrix 63,64 .…”

Section: Water Contact Angle (Wca)mentioning

confidence: 99%

Natural Rubber Films Incorporated with Red Propolis and Silver Nanoparticles Aimed for Occlusive Dressing Application

et al. 2021

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In this work, NRL films were enriched with red propolis and silver nanoparticles with the aim of obtaining dressings with bactericide properties. To improve the properties of these materials, plasma treatment was also applied to the films. Cytotoxic effects were evaluated by MTT and agar diffusion assays on secondary and stem cells. Determination of cell behavior on the films were assessed by EDS and FEG-SEM. In general, the plasma modified NRL films presented hydrophilic character, favorable condition for biomedical applications. RBS results showed that silver is probably in nanoparticulate form. MTT assays revealed that non-cytotoxic effects were observed for all the samples extracts. Either the plasma treatment or silver deposition were effective in sterilizing the samples and modifying their surfaces. It was demonstrated in this in vitro study that ADSCs associated with NRL films enriched with propolis should be considered promising for application in the healing of occlusive wounds.

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“…Polymer films have been frequently used in many modern industrial applications owing to their high performance. In the area of printed electronics, polymeric materials such as polycarbonate (PC), polyethylene terephthalate (PET) and other films are used as a substrate material for the manufacture of organic light-emitting diodes, sensor applications and organic solar cells [ 1 , 2 ] due to their outstanding flexibility, transparency, fold resistance, tensile strength and chemical and corrosion resistance, low weight and lower cost [ 3 ]. The manufacture of printed flexible electronics often requires changing the surface of the polymer to improve adhesion or wetting [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

“…A different group of authors assessed the influence of plasma treatment on different types of substrates and materials as reported below. Van Dogen et al in [ 1 ] studied the influence of plasma treatment on polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polycarbonate (PC), fluorinated ethylene propylene (FEP) and polyimide (PI) polymer films and highlighted increased wetting behavior after the treatment due to an increase in the polar part of the surface energy. Azimet et al in [ 20 ] studied the influence of DBD plasma treatment on polypropylene (PP) films and showed that the treatment conducted to a decrease in the contact angle while the surface roughness increased with the treatment time.…”

Section: Introductionmentioning

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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Wettability and Aging of Polymer Substrates after Atmospheric Dielectrical Barrier Discharge Plasma on Demand Treatment

Cited by 10 publications

References 0 publications

Retention of poly(N‐isopropylacrylamide) thin films on polycarbonate via polymer interdiffusion

Retention of poly(N‐isopropylacrylamide) thin films on polycarbonate via polymer interdiffusion

Natural Rubber Films Incorporated with Red Propolis and Silver Nanoparticles Aimed for Occlusive Dressing Application

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

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