scholarly journals Effect of washing on surface free energy of polystyrene plate treated by RF atmospheric pressure plasma

2006 ◽  
Vol 25 (3) ◽  
pp. 327-332 ◽  
Author(s):  
Yan Zhao ◽  
Shen Tang ◽  
Sung-Woon Myung ◽  
Na Lu ◽  
Ho-Suk Choi
Keyword(s):  
Free Energy ◽  
Surface Free Energy ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Pressure Plasma ◽  
Polystyrene Plate

LINK BETWEEN THE ENERGY CHARACTERISTICS OF THE SURFACE OF FIBERGLASS OF THE VPS-53К BRAND AND THE STRENGTH OF THE ADHESIVE JOINT BASED ON IT

2020 ◽  
pp. 40-50
Author(s):  
A.A. Barannikov ◽  
◽  
V.I. Рostnov ◽  
E.A. Veshkin ◽  
I.V. Starostina ◽  
...  
Keyword(s):  
Free Energy ◽  
Adhesive Joint ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Surface Preparation ◽  
Energy Characteristics ◽  
Pressure Plasma ◽  
Before And After

Based on the study of the wetting phenomenon and the theory of adhesion, the surface of fiberglass of the VPS-53K brand was studied before and after its treatment with atmospheric pressure plasma, which is one of the advanced methods of surface preparation for various adhesion processes. Two methods for determining the free energy of a surface are considered – the OUN's, Wendt's, Rabel's, and Kjelbla's method and the extended Fowkes method. The values of the free energy of the surface and its components are obtained using two methods under consideration. The connection between the energy characteristics of the surface of fiberglass of the VPS-53 K brand and the strength of the adhesive joint based on it is established.

Surface Characterization of Oxygen Plasma Treated Nano-SiO2 Sol-Gel Coating UHMWPE Filaments

2010 ◽  
Vol 658 ◽  
pp. 117-120 ◽  
Author(s):  
Ying Chen Zhang ◽  
Feng Jun Shi ◽  
Jian Xin He ◽  
Hong Yan Wu ◽  
Yi Ping Qiu
Keyword(s):  
Free Energy ◽  
Plasma Treatment ◽  
Ftir Spectroscopy ◽  
Surface Properties ◽  
Surface Free Energy ◽  
Atmospheric Pressure ◽  
Surface Characterization ◽  
Sol Gel ◽  
Atmospheric Pressure Plasma ◽  
Ultrahigh Molecular Weight Polyethylene

UHMWPE filaments have a low surface free energy and therefore often require a modification of their surface properties before any use. Atmospheric pressure plasmas treatment is a convenient and environmentally friendly way to obtain these modifications by introducing new chemical groups at the surface without affecting the bulk properties. This paper studies the influence of nano-SiO2 sol-gel coating pretreatment on atmospheric pressure plasma jet (APPJ) treatment of ultrahigh molecular weight polyethylene (UHMWPE) fibers when a mixture of 100% helium and 1% oxygen used as the treatment gas. The surface properties of the plasma-treated UHMWPE filaments are characterized using contact angle measurements and ATR-FTIR spectroscopy. The UHMWPE filaments show a remarkable increase in surface free energy after plasma treatment. ATR-FTIR spectroscopy of the plasma-treated UHMWPE filaments reveals that plasma treatment introduces oxygen-containing functionalities on the UHMWPE filaments surface leading to the increased surface free energy.

Ultrasonic Wave Detection in Atmospheric Pressure Plasma Using Fraunhofer Diffraction Effect

PIERS Online ◽  
2010 ◽  
Vol 6 (7) ◽  
pp. 636-639
Author(s):  
Toshiyuki Nakamiya ◽  
Fumiaki Mitsugi ◽  
Shota Suyama ◽  
Tomoaki Ikegami ◽  
Yoshito Sonoda ◽  
...  
Keyword(s):  
Ultrasonic Wave ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Diffraction Effect ◽  
Fraunhofer Diffraction ◽  
Wave Detection ◽  
Pressure Plasma

scholarly journals Atmospheric Pressure Plasma Deposition of TiO2: A Review

Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 2931
Author(s):  
Soumya Banerjee ◽  
Ek Adhikari ◽  
Pitambar Sapkota ◽  
Amal Sebastian ◽  
Sylwia Ptasinska
Keyword(s):  
Atmospheric Pressure ◽  
Gas Flow ◽  
Plasma Deposition ◽  
Atmospheric Pressure Plasma ◽  
Cost Savings ◽  
Historical Background ◽  
Pressure Plasma ◽  
Wide Range ◽  
The Status ◽  
Deposition Techniques

Atmospheric pressure plasma (APP) deposition techniques are useful today because of their simplicity and their time and cost savings, particularly for growth of oxide films. Among the oxide materials, titanium dioxide (TiO2) has a wide range of applications in electronics, solar cells, and photocatalysis, which has made it an extremely popular research topic for decades. Here, we provide an overview of non-thermal APP deposition techniques for TiO2 thin film, some historical background, and some very recent findings and developments. First, we define non-thermal plasma, and then we describe the advantages of APP deposition. In addition, we explain the importance of TiO2 and then describe briefly the three deposition techniques used to date. We also compare the structural, electronic, and optical properties of TiO2 films deposited by different APP methods. Lastly, we examine the status of current research related to the effects of such deposition parameters as plasma power, feed gas, bias voltage, gas flow rate, and substrate temperature on the deposition rate, crystal phase, and other film properties. The examples given cover the most common APP deposition techniques for TiO2 growth to understand their advantages for specific applications. In addition, we discuss the important challenges that APP deposition is facing in this rapidly growing field.

Effects of iodine dopant on atmospheric pressure plasma polymerized pyrrole in remote and coupling methods

2018 ◽  
Vol 677 (1) ◽  
pp. 135-142
Author(s):  
Dong Ha Kim ◽  
Choon-Sang Park ◽  
Eun Young Jung ◽  
Bhum Jae Shin ◽  
Jae Young Kim ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Pressure Plasma ◽  
Coupling Methods

The effect of atmospheric pressure plasma treatment on wetting and absorbance properties of cotton fabric

2021 ◽  
Author(s):  
Thisara Sandanuwan ◽  
Nayanathara Hendeniya ◽  
D.A.S. Amarasinghe ◽  
Dinesh Attygalle ◽  
Sampath Weragoda
Keyword(s):  
Plasma Treatment ◽  
Cotton Fabric ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Pressure Plasma
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