Stability of plasma treated superhydrophobic surfaces under different ambient conditions

Chen, Faze; Liu, Jiyu; Cui, Yao; Huang, Shuai; Song, Jinlong; Sun, Jing; Xu, Wenji; Liu, Xin

doi:10.1016/j.jcis.2016.02.058

Cited by 68 publications

(43 citation statements)

References 55 publications

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“…5c demonstrate that hydrophobic recovery of the p-nanofur can be prevented by storing it in water. These results are consistent with previously reported studies of hydrophobic recovery of plasma-treated polymer surfaces596063. Therefore, the underwater superoleophobic properties of the p-nanofur, necessary for oil/water separation, can be retained by storing it in water.…”

Section: Resultssupporting

confidence: 93%

“…To modify the nanofur functionality from oil-removing to water-removing, the surface energy of the as-prepared material is changed using plasma treatment. Plasma treatment is widely used to increase the surface energy of polymeric and other surfaces, and as a result increases their hydrophilicity585960. Modification of the polycarbonate (PC) nanofur surface was carried out by argon plasma treatment (0.2 mbar, 30 W, 120 s).…”

Section: Resultsmentioning

confidence: 99%

“…Multiple mechanisms are responsible for the hydrophobic recovery, including reorientation of hydrophilic functional groups and diffusion5962. However, the recovery rate can be greatly influenced by storage conditions, such as surrounding medium, temperature and humidity596062. To study the hydrophobic recovery of the plasma-treated PC p-nanofur, we measured water contact angles of p-nanofur stored in ambient air and in deionized water for duration of 85 days, and compared them to contact angles of the as-prepared nanofur stored in air.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Adaptable bioinspired special wetting surface for multifunctional oil/water separation

Kavalenka

Vüllers

Kumberg

et al. 2017

Sci Rep

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Inspired by the multifunctionality of biological surfaces necessary for the survival of an organism in its specific environment, we developed an artificial special wetting nanofur surface which can be adapted to perform different functionalities necessary to efficiently separate oil and water for cleaning accidental oil spills or separating industrial oily wastewater. Initial superhydrophobic nanofur surface is fabricated using a hot pulling method, in which nano- and microhairs are drawn out of the polymer surface during separation from a heated sandblasted steel plate. By using a set of simple modification techniques, which include microperforation, plasma treatment and subsequent control of storage environment, we achieved selective separation of either water or oil, variable oil absorption and continuous gravity driven separation of oil/water mixtures by filtration. Furthermore, these functions can be performed using special wetting nanofur made from various thermoplastics, including biodegradable and recyclable polymers. Additionally, nanofur can be reused after washing it with organic solvents, thus, further helping to reduce the environmental impacts of oil/water separation processes.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Adaptable bioinspired special wetting surface for multifunctional oil/water separation

Kavalenka

Vüllers

Kumberg

et al. 2017

Sci Rep

View full text Add to dashboard Cite

show abstract

“…These results are stemmed from the method that does not use any coating materials but make use of intrinsic hydrophobic property of the PET fabric. Thus, after being worn off by tape cleaner or sand paper, the superhydrophobic PET fabric that has inherent hydrophobicity generated new surface roughness and hydrophobic sites, which are made by friction (Figures S6 and S7, Supporting Information). From these results, we can conclude that the superhydrophobic PET fabric fabricated by alkaline hydrolysis and thermal hydrophobic aging process has robust mechanical durability.…”

Section: Resultsmentioning

confidence: 99%

“…Since polymer chains can be reoriented above the glass transition temperature ( T g ), the thermal hydrophobic aging process can make a surface hydrophobic by rearranging the hydrophobic groups toward the air‐side. This method is referred to as the hydrophobic recovery or aging process . When the surface was plasma‐etched, polar groups are introduced on the surface that represents superhydrophilicity.…”

Section: Introductionmentioning

confidence: 99%

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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Investigating the effect of water‐mixing nitrogen atmospheric pressure plasma jet on polyether‐ether‐ketone and time stability under different conditions

Liu

Guan

Shen

et al. 2021

J of Applied Polymer Sci

Self Cite

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Possessing excellent properties including good biocompatibility, high strength, and stiffness, polyether-ether-ketone (PEEK) has significant application values in medical and industrial fields. However, the relatively poor wettability and low adhesion limit its further applications. Atmospheric pressure plasma jet (APPJ) has been utilized for adjusting PEEK properties, but better hydrophilization effect and time stability after treatment are still urgently needed. In this paper, we employ a water-mixing nitrogen (N 2 H 2 O) APPJ to process PEEK, and surface wettability can be effectively improved (contact angle~18 within 2 min, distance between sample and nozzle outlet: 10 mm) without inducing obvious microstructure damages. Additionally, after storing for 40 days, the sample treated by N 2 H 2 O APPJ also possessed better wettability (~54) compared with that treated by N 2 APPJ (~65). On the basis of this lowdamage and high-efficient modification method, we perform aging experiments under different conditions (different temperatures 25, −10 C; and low vacuum condition: 50 kPa) to determine a relatively optimum storing condition for this method. The experiment results indicate that low temperature and vacuum are conducive to retaining the plasma-induced wettability (~34). The treatment method and storing conditions for PEEK presented here may facilitate the application of PEEK in various fields.

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Stability of plasma treated superhydrophobic surfaces under different ambient conditions

Cited by 68 publications

References 55 publications

Adaptable bioinspired special wetting surface for multifunctional oil/water separation

Adaptable bioinspired special wetting surface for multifunctional oil/water separation

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

Investigating the effect of water‐mixing nitrogen atmospheric pressure plasma jet on polyether‐ether‐ketone and time stability under different conditions

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