Surface Treatment of Polydimethylsiloxane (PDMS) with Atmospheric Pressure Rotating Plasma Jet. Modeling and Optimization of the Surface Treatment Conditions

Jofre-Reche, José Antonio; Pulpytel, Jérôme; Fakhouri, Houssam; Arefi‐Khonsari, Farzaneh; Martı́n-Martı́nez, José Miguel

doi:10.1002/ppap.201500118

Cited by 37 publications

(34 citation statements)

References 45 publications

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“…For the hardness tactile discrimination test, five different mass ratios of PDMS and curing agent (Sylgard 184 silicone elastomer kit, Auburn, AL, USA) mixtures were prepared, respectively, as different mass ratios lead to different hardness [ 44 ]. The mixtures were vacuumed for 20 min in a vacuum drier at 25 °C and then heated at 80 °C for 40 min in a lab oven.…”

Section: Methodsmentioning

confidence: 99%

Tactile Perception of Roughness and Hardness to Discriminate Materials by Friction-Induced Vibration

Ding

Pan

Tong

et al. 2017

Sensors

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The human fingertip is an exquisitely powerful bio-tactile sensor in perceiving different materials based on various highly-sensitive mechanoreceptors distributed all over the skin. The tactile perception of surface roughness and material hardness can be estimated by skin vibrations generated during a fingertip stroking of a surface instead of being maintained in a static position. Moreover, reciprocating sliding with increasing velocities and pressures are two common behaviors in humans to discriminate different materials, but the question remains as to what the correlation of the sliding velocity and normal load on the tactile perceptions of surface roughness and hardness is for material discrimination. In order to investigate this correlation, a finger-inspired crossed-I beam structure tactile tester has been designed to mimic the anthropic tactile discrimination behaviors. A novel method of characterizing the fast Fourier transform integral (FFT) slope of the vibration acceleration signal generated from fingertip rubbing on surfaces at increasing sliding velocity and normal load, respectively, are defined as kv and kw, and is proposed to discriminate the surface roughness and hardness of different materials. Over eight types of materials were tested, and they proved the capability and advantages of this high tactile-discriminating method. Our study may find applications in investigating humanoid robot perceptual abilities.

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Section: Methodsmentioning

confidence: 99%

Tactile Perception of Roughness and Hardness to Discriminate Materials by Friction-Induced Vibration

Ding

Pan

Tong

et al. 2017

Sensors

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“…Jofre-Reche et al [18] investigated the effect of the nozzle distance to the polydimethylsiloxane (PDMS) sample surface (in the range up to 10 mm) and found an optimum surface wettability at the distance of 6.6 mm. This correlated well with the lower gas temperature at this distance and higher optical emission intensity (OES) of O (777 nm) line in the plasma jet.…”

Section: Introductionmentioning

confidence: 99%

Evolution of the Surface Wettability of PET Polymer upon Treatment with an Atmospheric-Pressure Plasma Jet

2020

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A useful technique for pre-treatment of polymers for improved biocompatibility is surface activation. A method for achieving optimal wettability at a minimal thermal load and unwanted modifications of the polymer properties is elaborated in this paper. Samples of polyethylene terephthalate polymer were exposed to an atmospheric-pressure plasma jet created by a high-impedance low-frequency discharge in wet argon. Different treatment times and distances from the end of the glowing discharge enabled detailed investigation of the evolution of surface activation. A rather fast saturation of the surface wettability over the area of the order of cm2 was observed upon direct treatment with the glowing discharge. At a distance of few mm from the glowing discharge, the activation was already two orders of magnitude lower. Further increase of the distance resulted in negligible surface effects. In the cases of a rapid activation, very sharp interphase between the activated and unaffected surface was observed and explained by peculiarities of high-impedance discharges sustained in argon with the presence of impurities of water vapor. Results obtained by X-ray photoelectron spectroscopy confirmed that the activation was a consequence of functionalization with oxygen functional groups.

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“…大气压下的低温等离子体射流可以在空气环境中产生等离子体羽, 实现放电区和应用区分离, 且等离子体羽具有丰富的活性粒子 [1,2] . 因此, 等离子体射流在表面改性 [3,4] 、水处理 [5,6] 、癌症治疗 [7,8] 等众多领域具有广泛的应用潜力.…”

Section: 引言unclassified

Characteristics and mechanism of moniliform plasma plume in atmospheric argon jet

Chen

Jia

et al. 2019

Sci. Sin.-Phys. Mech. Astron.

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Surface Treatment of Polydimethylsiloxane (PDMS) with Atmospheric Pressure Rotating Plasma Jet. Modeling and Optimization of the Surface Treatment Conditions

Cited by 37 publications

References 45 publications

Tactile Perception of Roughness and Hardness to Discriminate Materials by Friction-Induced Vibration

Tactile Perception of Roughness and Hardness to Discriminate Materials by Friction-Induced Vibration

Evolution of the Surface Wettability of PET Polymer upon Treatment with an Atmospheric-Pressure Plasma Jet

Characteristics and mechanism of moniliform plasma plume in atmospheric argon jet

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