Mechanical properties of plasma polymer films: a review

Oliveira, Jamerson Carneiro de; Airoudj, Aissam; Kunemann, Philippe; Gall, Florence Bally‐Le; Roucoules, Vincent

doi:10.1007/s42452-021-04655-9

Cited by 18 publications

(10 citation statements)

References 109 publications

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“…The comparatively low hardness of film 28 can be due to the low crosslinking of the film, which is related directly. [ 59 ] The mechanical properties of the PTFE films deposited with EVD+ LTP are comparable with the properties of the films produced by classic plasma methods summarized in ref. [60].…”

Section: Resultssupporting

confidence: 61%

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: Resultssupporting

confidence: 61%

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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“…Even if the field has largely developed since decades, important challenges and key questions are still open and would justify the development of new research directions. As a good example, in the field of PP, a better understanding of the correlation between chemistry and the mechanical properties of the material is still necessary to fully access future applications of the coatings in the biomedical field [289]. From the fundamental point of view, the concept of glass transition of PPFs needs to be better understood to access the fabrication of mechanically responsive PPF, finding application in flexible electronics, stretchable solar cells, bio-inspired devices, and others [74,103].…”

Section: Challengesmentioning

confidence: 99%

Foundations of plasma enhanced chemical vapor deposition of functional coatings

Snyders

Hegemann

Thiry

et al. 2023

Plasma Sources Sci. Technol.

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Since decades, the PECVD (“Plasma Enhanced Chemical Vapor Deposition”) processes have emerged as one of the most convenient and versatile approaches to synthesizing either organic or inorganic thin films on many types of substrates, including complex shapes. As a consequence, PECVD is today utilized in many fields of application such as microelectronic circuit fabrication, optics/photonics, biotechnology, energy, smart textiles, and many others. Nevertheless, owing to the complexity of the process including numerous gas phase and surface reactions, the fabrication of tailor-made materials for a given application is still a major challenge in the field making it obvious that the mastery of the technique can only be achieved through the fundamental understanding of the chemical and physical phenomena involved in the film formation.In this context, the aim of this foundation paper is to share with the readers our perception and understanding of the basic principles behind the formation of PECVD layers considering the co-existence of different reaction pathways that can be tailored by controlling the energy dissipated in the gas phase and/or at the growing surface. We demonstrate that the key parameters controlling the functional properties of the PECVD films are similar whether they are inorganic or organic-like (plasma polymers) in nature, thus supporting a unified description of the PECVD process. Several concrete examples of the gas phase processes and the film behavior illustrate our vision.To complete the document, we also discuss the present and future trends in the development of the PECVD processes and provide examples of important industrial applications using this powerful and versatile technology.

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“…for 800 ppm at room temperature. PVAc is a key sensor material, which has been chemically synthesized and studied for various gas-sensing applications . Still, there is an opportunity to discover the gas sensing performance of PVAc films synthesized through quality and uniform coating methods.…”

Section: Introductionmentioning

confidence: 99%

“…PVAc is a key sensor material, which has been chemically synthesized and studied for various gas-sensing applications. 23 Still, there is an opportunity to discover the gas sensing performance of PVAc films synthesized through quality and uniform coating methods. The plasma-polymerized polymer films usually reveal unique characteristics in terms of purity and uniformity.…”

Section: Introductionmentioning

confidence: 99%

Plasma-Polymerized and Iodine-Doped Polyvinyl Acetate for Volatile Organic Compound Gas Sensing Applications

Nadekar¹,

Gund

Khollam³

et al. 2023

ACS Appl. Polym. Mater.

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Nowadays, the increased emission of hazardous volatile organic compounds (VOCs) due to rapid growth in the manufacturing industry has enforced demand for highly sensitive, selective, and stable gas sensors. Among the different types of gas sensors, we resolved issues associated with chemoresistive alcohol sensors like low selectivity, temperature instability, and long-term instability using iodine-doped polyvinyl acetate (IPVAc) films. These polymer-based chemoresistive sensors will be beneficial for low power consumption, ease of manufacture, and long-term stability owing to their simple structure and operation. The polymer films were prepared using the inductively coupled tubular plasma polymerization method. These films were doped with iodine at room temperature. The physicochemical characterization of prepared films confirmed the uniform coating of granular type morphology, iodine doping, and cubical crystal structure. The obtained maximum sensitivity was 122 and 7360 a.u. for 1000 ppm of methanol gas for polyvinyl acetate (PVAc) and IPVAc films, respectively. Also, IPVAc films demonstrated sensitivities of 5554 and 1995 a.u. for 1000 ppm of each ethanol and 2-propanol gas, respectively. IPVAc films illustrated the highest selectivity of 600 a.u. for alcohols over other VOCs like acetone, benzene, toluene, and dichloromethane. The high electronegativity of IPVAc films due to iodine doping is the key origin of the highly selective adsorption of VOCs. Additionally, the IPVAc films have stable sensitivity performance over the temperature range of 30−130 °C and repeatability over 60 days. Thus, the plasma-polymerized IPVAc films can be applied for fabricating highly selective, sensitive, and stable VOC sensing applications.

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Mechanical properties of plasma polymer films: a review

Cited by 18 publications

References 109 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

Foundations of plasma enhanced chemical vapor deposition of functional coatings

Plasma-Polymerized and Iodine-Doped Polyvinyl Acetate for Volatile Organic Compound Gas Sensing Applications

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