Nanotexturing and Wettability Ageing of Polypropylene Surfaces Modified by Oxygen Capacitively Coupled Radio Frequency Plasma

Li, Y.P.; Lei, M.K.

doi:10.1016/j.jmst.2014.09.005

Cited by 13 publications

(5 citation statements)

References 29 publications

(15 reference statements)

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“…The studies carried out with the use of PP foil showed that application of higher plasma power did not destroy the polymer. Moreover, good stability of the CA value was obtained, which confirms the results of the other study [ 45 ]. For these reasons, high power values (100–205 W) were used for modifying the PP membranes.…”

Section: Resultssupporting

confidence: 90%

“…However, in another study [47], it has been shown that initially, the plasma causes etching of the surface, while the extension of its time (4 and more minutes) favors the redeposition of fragments on the polymer surface, which leads to increasing its hydrophobicity. Notably, several researchers observed the phenomenon of the rapid recovery of membrane hydrophobicity within 1-2 days after plasma exposure [36,45]. In this study, good stability of the obtained changes was reported, especially for higher values of the plasma excitation power (Figure 5).…”

Section: Conditions Of Plasma Treatmentsupporting

confidence: 64%

“…Increasing the gas flow promotes the homogeneity of the produced plasma [ 26 ]. On the other hand, the increase in plasma power results in greater intensity of free radicals activity, leading to an increase in the content of oxygen compounds on the membrane surface [ 45 ]. In addition, changing the surface roughness also affects the CA value.…”

Section: Resultsmentioning

confidence: 99%

“…Notably, several researchers observed the phenomenon of the rapid recovery of membrane hydrophobicity within 1–2 days after plasma exposure [ 36 , 45 ]. In this study, good stability of the obtained changes was reported, especially for higher values of the plasma excitation power ( Figure 5 ).…”

Section: Resultsmentioning

confidence: 99%

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Stability of Ar/O2 Plasma-Treated Polypropylene Membranes Applied for Membrane Distillation

Gryta

Tomczak

2021

Membranes

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In the present work, Ar/O2 plasma treatment was used as a surface modification tool for polypropylene (PP) membranes. The effect of the plasma conditions on the properties of the modified PP surface has been investigated. For this purpose, the influence of gas composition and its flow rate, plasma power excitation as well as treatment time on the contact angle of PP membranes has been investigated. The properties of used membranes were determined after various periods of time: immediately after the modification process as well as after one, four and five years of storage. Moreover, the used membranes were evaluated in terms of their performance in long-term MD process. Through detailed studies, we demonstrated that the performed plasma treatment process effectively enhanced the performance of the modified membranes. In addition, it was shown that the surface modification did not affect the degradation of the membrane matrix. Indeed, the used membranes maintained stable process properties throughout the studied period.

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Section: Resultssupporting

confidence: 90%

Section: Conditions Of Plasma Treatmentsupporting

confidence: 64%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Stability of Ar/O2 Plasma-Treated Polypropylene Membranes Applied for Membrane Distillation

Gryta

Tomczak

2021

Membranes

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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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Robust Fluorine‐Free Superhydrophobic PET Fabric Using Alkaline Hydrolysis and Thermal Hydrophobic Aging Process

Park

2018

Macro Materials & Eng

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A newly developed fluorine‐free method to render robust superhydrophobic polyethylene terephthalate (PET) fabric is introduced with alkaline hydrolysis followed by thermal hydrophobic aging process, i.e., nonchemical finishing. The superhydrophobic PET fabric shows a static contact angle of 170.7° ± 2.4° and a shedding angle of 8.6° ± 0.7°. Breathability and color of the fabricated PET fabric are improved and not changed. The alkaline hydrolyzed and thermal hydrophobic aged PET fabric is easily bent and has increased smoothness, fullness, and softness. Additionally, it has good durability for tape test, abrasion test, pH test, and washing test under an extra aging process that gives rise to self‐healing. Self‐cleaning property of the superhydrophobic PET fabric is excellent. Therefore, the alkaline hydrolyzed and thermally hydrophobic aged superhydrophobic fabric has a potential for commercial applications in functional or biomedical textiles, goods and related industries, with improved human/environmental friendliness and efficiency of care.

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Nanotexturing and Wettability Ageing of Polypropylene Surfaces Modified by Oxygen Capacitively Coupled Radio Frequency Plasma

Cited by 13 publications

References 29 publications

Stability of Ar/O2 Plasma-Treated Polypropylene Membranes Applied for Membrane Distillation

Stability of Ar/O2 Plasma-Treated Polypropylene Membranes Applied for Membrane Distillation

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

Robust Fluorine‐Free Superhydrophobic PET Fabric Using Alkaline Hydrolysis and Thermal Hydrophobic Aging Process

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