Tunable surface chemistry and wettability of octafluorocyclobutane and acrylic acid copolymer combined LDPE substrate by pulsed plasma polymerization

Iqbal, Muzammil; Li, Y. P.; Li, X. Y.; Dinh, Duy Khoe; Imran, Muhammad�; Sattar, Harse; Lei, M.K.

doi:10.1007/s11998-019-00244-z

Cited by 4 publications

(4 citation statements)

References 43 publications

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“…Activation of a fluorinated precursor in a gas phase can be made by various kinds of classical low‐temperature plasma (LTP) at a consequent gas pressure. [ 8,20–22 ] Plasma methods usually led to the formation of crosslinked material with no regular polymer macrochains with repeated monomeric units. Supply of active perfluorinated fragments to substrate surface also can be made with sputtering of bulk PTFE target, [ 4,23 ] laser or electron beam ablation, [ 24,25 ] and thermal decomposition of PTFE in a high vacuum.…”

Section: Introductionmentioning

confidence: 99%

Optical and Mechanical Properties of Thin PTFE Films, Deposited from a Gas Phase

Grytsenko

Kolomzarov

Lytvyn

et al. 2023

Macro Materials & Eng

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Thin polytetrafluoroethylene (PTFE) films are produced by deposition from a gas phase by two methods: electron-enhanced vacuum deposition (EVD) and EVD + low-temperature plasma (LTP). Structure, morphology, and composition of the films are studied by IR spectroscopy, atomic force microscopy, and X-ray photoelectron spectroscopy. They are close to the structure of bulk PTFE. The roughness of the films' surface is changed with gas pressure and LTP power variations. Films are transparent from UV to near-infrared regions. Refractive and extinction indices and their anisotropy are measured by spectral ellipsometry. They are tuned by variations of deposition conditions. Hardness and Young modulus of the films are increased if EVD + low power LTP is used for film deposition. Use of EVD + LTP also increases thermal stability of the films. Contact angle of the films corresponds to the bulk PTFE. The PTFE molecules oriented are preferentially in perpendicular direction to the substrate surface.

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Section: Introductionmentioning

confidence: 99%

Optical and Mechanical Properties of Thin PTFE Films, Deposited from a Gas Phase

Grytsenko

Kolomzarov

Lytvyn

et al. 2023

Macro Materials & Eng

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“…Superhydrophobic properties mainly depends upon the structure of solid surface (roughness and morphology) and chemical composition. 3,4 Being inspired by the surfaces of lotus leaf, which has excellent superhydrophobic chemistry and a hierarchical micro-nano-scale structure, several biomimetic superhydrophobic surfaces have been recently developed. 5 Superhydrophobic surfaces permit water droplets to roll off easily, take up contaminants, and clean their path in the process as claimed by the study of lotus effect.…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic properties and chemical state analysis of wear resistant coating prepared by electrical discharge process

Tyagi

Das

Mandal

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Electrical discharge coating (EDC) process has been used to prepare a corrosion and wear resistant super-hydrophobic coating on the steel substrate. The coating process has been carried out by using three types of green compact tool electrodes (WS2/Cu, MoS2/Cu, and hBN/Cu). In these tool electrodes, powder mixing ratios (40:60, 50:50, 60:40) are varied, and their effect on coating characteristics (surface morphology, wettability, corrosion, and wear behaviour) has been studied. In this investigation, the morphology and chemical state of coating has been observed by using a scanning electron microscopy (SEM) and X-ray photoemission spectroscopy (XPS). SEM images of the applied coating show a porous and hierarchical structure. This hierarchical structure helps in raising the contact angle (CA) to 165.6° (super-hydrophobic state). The XPS analysis reveals that the deposition of solid lubricants takes place with their negligible disintegration into non-lubricating compounds. In addition, the prepared coating exhibits excellent resistance to wear and corrosion.

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“…The preparation of uniform thin films by plasma technology uses more expensive equipment compared to both other methods, but the thickness of plasma-assisted deposited films can be easily adjusted . Additionally, the plasma technique is used not only in simple coating processes but also as an effective tool when polymerizable systems are considered …”

Section: Introductionmentioning

confidence: 99%

“…15 Additionally, the plasma technique is used not only in simple coating processes but also as an effective tool when polymerizable systems are considered. 16 Most of the research in this field is focused on the effect of polymer layers on the embedded nanoparticles and how such a polymer can be applied as a capping material, stabilizer, or reducing agent for metal ions as discussed above. However, only little attention is paid to studying the structure− electrochemical relationships of the polymer layer imparted by the implanted nanoparticles.…”

Section: ■ Introductionmentioning

confidence: 99%

Effect of Silver Nanoparticles on the Dielectric Properties and the Homogeneity of Plasma Poly(acrylic acid) Thin Films

2020

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For the first time, structure−electrochemical relationships of thin films of a plasma-polymerized acrylic acid/carbon dioxide AA/ CO 2 (75/25%) copolymer modified by implanted silver nanoparticles are discussed. The pulsed plasma polymerization of AA/CO 2 was utilized and adjusted to obtain a maximal amount of COOH groups forming an almost uncross-linked polymer structure. The prepared polymer layer is rinsed by a silver nitrate solution to impregnate Ag + ions. This step is followed by its reduction of Ag + with NaBH 4 as a chemical route in comparison to the reduction by sunlight as an ecofriendly photoreduction method. The chemical composition and morphology of the topmost surface layer of the AA/CO 2 polymer thin film were investigated by X-ray photoelectron spectroscopy and atomic force microscopy. Moreover, the molecular mobility, conductivity, and thermal stability of the polymer layer were analyzed using broadband dielectric spectroscopy. The dielectric properties of the AA/ CO 2 polymer thin film were studied in the presence of Ag + ions or Ag 0 . It was found that a cross-linked polymer layer with a smooth surface and high conductivity was obtained in the presence of Ag + / Ag 0 .

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Tunable surface chemistry and wettability of octafluorocyclobutane and acrylic acid copolymer combined LDPE substrate by pulsed plasma polymerization

Cited by 4 publications

References 43 publications

Optical and Mechanical Properties of Thin PTFE Films, Deposited from a Gas Phase

Optical and Mechanical Properties of Thin PTFE Films, Deposited from a Gas Phase

Hydrophobic properties and chemical state analysis of wear resistant coating prepared by electrical discharge process

Effect of Silver Nanoparticles on the Dielectric Properties and the Homogeneity of Plasma Poly(acrylic acid) Thin Films

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