Treatment of polycarbonate by dielectric barrier discharge (DBD) at atmospheric pressure

Kostov, K. G.; Hamia, Y A A; Mota, Ronaldo; Santos, A. L. F. dos; Nascente, P. A. P.

doi:10.1088/1742-6596/511/1/012075

Cited by 28 publications

(22 citation statements)

References 10 publications

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“…Increase the surface wettability thereby surface energy of polymers due to atmospheric DBD plasma after short treatment time for PA6 and PET is reported in the literature [14,15] also in our previous experience as well for PA6 [16]. This increase indicated to the presence of polar functionalities on the surface.…”

Section: Surface Characterizationsupporting

confidence: 57%

“…The DCSBD was designed to be suitable for flat surfaces treatment in particular. The DCSBD electrode system was powered by AC high voltage source which has a frequency (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) kHz and approximately 20 kV peak-to-peak voltage. In the present study, the discharge power is 320 W and it was operated in the air in order obtain a quasi-homogeneous diffuse plasma surface.…”

Section: Plasma Treatmentmentioning

confidence: 99%

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Friction Behavior of Engineering Polymers Treated by Atmospheric DBD Plasma

Al-Maliki

Kalácska

2017

Period. Polytech. Mech. Eng.

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Section: Surface Characterizationsupporting

confidence: 57%

Section: Plasma Treatmentmentioning

confidence: 99%

Friction Behavior of Engineering Polymers Treated by Atmospheric DBD Plasma

Al-Maliki

Kalácska

2017

Period. Polytech. Mech. Eng.

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“…As a result, to enhance the stability and durability, sensitivity, and antimicrobial activity of SPR sensors based on thin films, their surfaces should be modified by cold plasma (CP) treatment. Cold plasma treatment is one of the most versatile non-thermal techniques in surface modification [20][21][22][23][24][25]. Plasma can be classified as high pressure, atmospheric pressure and low pressure according to the pressure conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Numerous studies have been focused on the treatment of polymeric surfaces [21][22][23], natural organic materials (e.g., cellulosic materials such as paper and cotton) [46,47], and inorganic materials (e.g., metals) [26,30,[48][49][50]. On the other hand, a few recent studies [51] reported the utilization of cold plasma jets for the treatment of metallic thin film surfaces to improve their SPR metal nanoparticles-based optical sensing properties which is effective for detection of chemical and biological targets.…”

Section: Introductionmentioning

confidence: 99%

Effects of different gas flow rates and non-perpendicular incidence angles of argon cold atmospheric-pressure plasma jet on silver thin film treatment

et al. 2019

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In this study, the influences of variations in the gas flow rate and incidence angles of argon cold atmospheric-pressure plasma jet on the morphology and absorption spectra of silver thin films (60 nm, 80 nm, and 100 nm film thickness) are investigated. To evaluate the surface morphology, atomic force microscopy (AFM) was employed on the silver thin film surface before and after plasma processing. To analyze the effect of plasma treatment on the grain size, the one-dimensional AFM surface profiles of Ag thin films are approximated using a Gaussian function. The absorbance of Ag thin films is measured in wavelength range of 190-1100 nm utilizing UV-Vis absorption spectrometer. Compared to the gas flow rates 0.5 standard litter per minute (SLM) and 2 SLM, surface treatment of Ag thin film with gas flow rate of 1 SLM increased the valley depth, the peak valley height, and the distance between two deepest valleys remarkably. A sequential argon plasma treatment (2-min plasma treatment perpendicular to surface was followed by 2-min plasma processing with non-perpendicular incidence angle of 60°) offers considerable improvement in the uniformity of grains and also changes shape of grains, especially the peak height (about 44 times higher than untreated sample) and area of grains (almost 136 times greater than untreated sample) which can be applicable for optical sensing technology. Keywords Non-perpendicular incidence angle of argon cold atmospheric-pressure plasma jet (APPJ) • Gas flow rate • Absorption spectra • Surface morphology • Analysis of silver grain size • Gaussian function

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“…The ionization potentials for O 2 and N 2 are 12.08 and 15.58 eV, respectively, corresponding to six and seven photon transitions in the ≈532 nm laser radiation . The resultant polar groups and unsaturated groups (e.g., OH and C–OH) derived from radicals and radical ions in the activated air are adsorbed on the surface of chitosan films, beneficial to the formation of ionized channels on the surface of chitosan films which could strongly enhance the charge transfer between friction layers, resulting in the improved outputs . The adsorption of ionized groups could be saturated with around 4200 laser pulses; further increase of the pulse number could lead to undesired heating of the film and increase the desorption of the polar groups instead.…”

mentioning

confidence: 99%

Engineered and Laser‐Processed Chitosan Biopolymers for Sustainable and Biodegradable Triboelectric Power Generation

et al. 2018

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Recent advances achieved in triboelectric nanogenerators (TENG) focus on boosting power generation and conversion efficiency. Nevertheless, obstacles concerning economical and biocompatible utilization of TENGs continue to prevail. Being an abundant natural biopolymer from marine crustacean shells, chitosan enables exciting opportunities for low-cost, biodegradable TENG applications in related fields. Here, the development of biodegradable and flexible TENGs based on chitosan is presented for the first time. The physical and chemical properties of the chitosan nanocomposites are systematically studied and engineered for optimized triboelectric power generation, transforming the otherwise wasted natural materials into functional energy devices. The feasibility of laser processing of constituent materials is further explored for the first time for engineering the TENG performance. The laser treatment of biopolymer films offers a potentially promising scheme for surface engineering in polymer-based TENGs. The chitosan-based TENGs present efficient energy conversion performance and tunable biodegradation rate. Such a new class of TENGs derived from natural biomaterials may pave the way toward the economically viable and ecologically friendly production of flexible TENGs for self-powered nanosystems in biomedical and environmental applications.

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Treatment of polycarbonate by dielectric barrier discharge (DBD) at atmospheric pressure

Cited by 28 publications

References 10 publications

Friction Behavior of Engineering Polymers Treated by Atmospheric DBD Plasma

Friction Behavior of Engineering Polymers Treated by Atmospheric DBD Plasma

Effects of different gas flow rates and non-perpendicular incidence angles of argon cold atmospheric-pressure plasma jet on silver thin film treatment

Engineered and Laser‐Processed Chitosan Biopolymers for Sustainable and Biodegradable Triboelectric Power Generation

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