Influence of atmospheric pressure plasma treatment time on penetration depth of surface modification into fabric

2008 ◽  
Vol 254 (8) ◽  
pp. 2499-2505 ◽  
Author(s):  
C.X. Wang ◽  
Y. Liu ◽  
H.L. Xu ◽  
Y. Ren ◽  
Y.P. Qiu
Keyword(s):  
Surface Modification ◽  
Plasma Treatment ◽  
Penetration Depth ◽  
Atmospheric Pressure ◽  
Treatment Time ◽  
Atmospheric Pressure Plasma ◽  
Pressure Plasma ◽  
Plasma Treatment Time

scholarly journals Cold Atmospheric Pressure Argon Plasma Jet Assisted Degradation of Malachite Green (MG) Aqueous Solution

2020 ◽  
Vol 2 (1) ◽  
pp. 51-61
Author(s):  
Vasu D ◽  
Ramkumar M.C ◽  
Arunkumar A ◽  
Navaneetha Pandiyaraj K
Keyword(s):  
Aqueous Solution ◽  
Plasma Treatment ◽  
Malachite Green ◽  
Atmospheric Pressure ◽  
Treatment Time ◽  
Oxidative Degradation ◽  
Atmospheric Pressure Plasma ◽  
Pressure Plasma ◽  
Plasma Treatment Time ◽  
Cold Atmospheric Pressure Plasma

The oxidative degradation of cold atmospheric pressure plasma assisted degradation of malachite Green (MG) was investigated in this study. Cold atmospheric pressure plasma assisted MG degradation process was carried out as a function various plasma treatment time (05, 10, and 15 mins). The % of degradation and presence carbon content in the plasma treated MG was examined by UV-Visible spectroscopy (UV-Vis) and total organic carbon (TOC) analyzer. Optical emission spectrometer was used to identify formation of various reactive species during in situ plasma treatment. The higher degradation percentage of 90% was obtained after plasma treatment time of 15 min and value of TOC also found to decreased significantly with increasing plasma treatment time.  Toxicity of the plasma-treated MG aqueous solution samples was also examined by Staphylococcus aureus (S.aureus) bacteria.

scholarly journals A Study on the Effect of Plasma Treatment for Waste Wood Biocomposites

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
MiMi Kim ◽  
Heung Soo Kim ◽  
Joong Yeon Lim
Keyword(s):  
Mechanical Properties ◽  
Surface Modification ◽  
Plasma Treatment ◽  
Atmospheric Pressure ◽  
Plasma Polymerization ◽  
Atmospheric Pressure Plasma ◽  
Single Species ◽  
Wood Powder ◽  
Waste Wood ◽  
Pressure Plasma

The surface modification of wood powder by atmospheric pressure plasma treatment was investigated. The composites were manufactured using wood powder and polypropylene (wood powder: polypropylene = 55 wt% : 45 wt%). Atmospheric pressure plasma treatment was applied under the condition of 3 KV,17±1 KHz, 2 g/min. Helium was used as the carrier gas and hexamethyl-disiloxane (HMDSO) as the monomer to modify the surface property of the waste wood biocomposites by plasma polymerization. The tensile strengths of untreated waste wood powder (W3) and single species wood powder (S3) were about 18.5 MPa and 21.5 MPa while those of plasma treated waste wood powder (PW3) and plasma treated single species wood powder (PS3) were about 21.2 MPa and 23.4 MPa, respectively. Tensile strengths of W3 and S3 were improved by 14.6% and 8.8%, respectively. From the analyses of mechanical properties and morphology, we conclude that the interfacial bonding of polypropylene and wood powder can be improved by atmospheric pressure plasma treatment.

Influence of Atmospheric-Pressure Plasma Treatment on Surface of Polyimide Film

2007 ◽  
Vol 119 ◽  
pp. 123-126
Author(s):  
Soo Jin Park ◽  
Eun Jung Lee ◽  
Soo Han Kwon
Keyword(s):  
Plasma Treatment ◽  
Atmospheric Pressure ◽  
Treatment Time ◽  
Fluorine Content ◽  
Atmospheric Pressure Plasma ◽  
Polyimide Film ◽  
Dielectric Constants ◽  
Unit Surface Area ◽  
Free Energies ◽  
Pressure Plasma

In this work, the effects of atmospheric-pressure plasma treatment of polyimide films on surface and dielectric characteristics were studied by using X-ray photoelectron spectroscopy (XPS), surface free energies, and dielectric spectrometer. The total surface free energies and dielectric constants of plasma treated polyimide film were deareased with increasing the treatment time, which was mainly due to a lower London-dispersive component, while the specific component was increased. This could be attributed to an increase of the polar fluorine groups of polyimide per unit surface area. And the fluorine content of the polyimide film was increased with increasing the amount of the treatment time, resulting in decreasing dielectric constant of the film. It was found that the replacement of fluorine led to the decrease of the local electronic polarizability of polyimide, or to the increase of the free volume, which could be attributed to the relatively large volume of fluorine.

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