Transition of water adhesion on superhydrophobic surface during aging of polypropylene modified by oxygen capacitively coupled radio frequency plasma

Li, Y.P.; Shi, Wei; Li, S.Y.; Lei, M.K.

doi:10.1016/j.surfcoat.2012.10.037

Cited by 21 publications

(7 citation statements)

References 34 publications

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“…Commercially available nonwoven filtering material obtained using melt-blown techniquefrom polypropylene (PP) homopolymer (Borealis Borow HL504FB) was used in our investigations. The material was modified with zinc oxide using a three-step method: a) plasma treatment, b) modification of PP fabrics by thin layer ZnO nuclei, and c) growing of ZnO nanorods on the modifiedsurface.Initial material has been treated by plasma discharge to improve wettability and adhesion of nano-nuclei to polymer surface [34,35]. This process was conducted in DIONEX Series 2000 reactor with radio frequency plasma generator in vacuum and oxygen.…”

Section: Photocatalysts' Synthesismentioning

confidence: 99%

Polypropylene nonwoven filter with nanosized ZnO rods: Promising hybrid photocatalyst for water purification

Colmenares

Kuna

Jakubiak

et al. 2015

Applied Catalysis B: Environmental

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Section: Photocatalysts' Synthesismentioning

confidence: 99%

Polypropylene nonwoven filter with nanosized ZnO rods: Promising hybrid photocatalyst for water purification

Colmenares

Kuna

Jakubiak

et al. 2015

Applied Catalysis B: Environmental

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“…The formation of such droplets is not typical for plasma-treated polymers. Although numerous authors reported nanostructuring of polymers upon plasma treatment [ 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 ] such a surface finish was rarely reported. The formation of such droplets cannot be explained by deposition of a third material because no other material but the polymer sample was introduced into the plasma reactor.…”

Section: Resultsmentioning

confidence: 99%

Cell Proliferation on Polyethylene Terephthalate Treated in Plasma Created in SO2/O2 Mixtures

et al. 2017

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Samples of polymer polyethylene terephthalate were exposed to a weakly ionized gaseous plasma to modify the polymer surface properties for better cell cultivation. The gases used for treatment were sulfur dioxide and oxygen of various partial pressures. Plasma was created by an electrodeless radio frequency discharge at a total pressure of 60 Pa. X-ray photoelectron spectroscopy showed weak functionalization of the samples' surfaces with the sulfur, with a concentration around 2.5 at %, whereas the oxygen concentration remained at the level of untreated samples, except when the gas mixture with oxygen concentration above 90% was used. Atomic force microscopy revealed highly altered morphology of plasma-treated samples; however, at high oxygen partial pressures this morphology vanished. The samples were then incubated with human umbilical vein endothelial cells. Biological tests to determine endothelialization and possible toxicity of the plasma-treated polyethylene terephthalate samples were performed. Cell metabolic activity (MTT) and in vitro toxic effects of unknown compounds (TOX) were assayed to determine the biocompatibility of the treated substrates. The biocompatibility demonstrated a well-pronounced maximum versus gas composition which correlated well with development of the surface morphology.

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“…17 Li et al investigated the influence of plasma processing time, post-aged temperature on the surface topography and hydrophilicity of PE and PP. [18][19][20] The previous research demonstrated that the surfaces of polyolefin after treated with Ar plasma and exposed to air, tended to form -O-O-, -O-O-H and -C-O-O-C groups which can initiate the grafting polymerization of monomers under UV irradiation. 21 Micropatterning is very powerful in studies of cellmaterial interactions.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of micropatterns on polypropylene films via plasma pretreatment combined with UV-initiated graft polymerization

et al. 2017

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In this study, micropatterns on polypropylene films were fabricated via plasma pretreatment and UV-initiated graft polymerization. Firstly, radio-frequency plasma, which does not significantly influence bulk attributes of substrates due to limited penetration depth, was utilized to activate polypropylene films. Then, different sizes of micropatterns of poly(hydroxyethyl methacrylate) (PHEMA) were fabricated on the polypropylene films via UV-initiated graft polymerization of hydroxyethyl methacrylate by using photo-masks. Scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and contact angle (CA) were employed to characterize changes of pristine polypropylene films and modified ones in surface morphology, roughness, hydrophilicity, free energy and the surface chemical composition. All of these confirmed the successful grafting of different sizes of PHEMA micropatterns on the polypropylene surface. Furthermore, the influence of PHEMA micropatterns on cell proliferation and cytotoxicity was evaluated in vitro. Analysis of cell behaviour indicated that PHEMA micropatterns of the appropriate size can promote cellular adhesion and proliferation, and the PHEMA-micropatterned polypropylene films had good biocompatibility. The approach presented here provides an alternative to synthesize on the surface of polypropylene films' micropatterns with the aim of using them in a diverse array of applications.

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Transition of water adhesion on superhydrophobic surface during aging of polypropylene modified by oxygen capacitively coupled radio frequency plasma

Cited by 21 publications

References 34 publications

Polypropylene nonwoven filter with nanosized ZnO rods: Promising hybrid photocatalyst for water purification

Polypropylene nonwoven filter with nanosized ZnO rods: Promising hybrid photocatalyst for water purification

Cell Proliferation on Polyethylene Terephthalate Treated in Plasma Created in SO2/O2 Mixtures

Fabrication of micropatterns on polypropylene films via plasma pretreatment combined with UV-initiated graft polymerization

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