The surface chemistry resulting from low-pressure plasma treatment of polystyrene: The effect of residual vessel bound oxygen

2006 ◽  
Vol 252 (22) ◽  
pp. 7957-7963 ◽  
Author(s):  
Marshal Dhayal ◽  
Morgan R. Alexander ◽  
James W. Bradley
Keyword(s):  
Surface Chemistry ◽  
Plasma Treatment ◽  
Low Pressure ◽  
Pressure Plasma ◽  
Low Pressure Plasma

The effect of low-pressure plasma treatment of seeds on the plant resistance to pathogens and crop yields

2020 ◽  
Vol 53 (24) ◽  
pp. 244001 ◽  
Author(s):  
Irina Filatova ◽  
Veronika Lyushkevich ◽  
Svetlana Goncharik ◽  
Alexander Zhukovsky ◽  
Natalia Krupenko ◽  
...  
Keyword(s):  
Plasma Treatment ◽  
Plant Resistance ◽  
Crop Yields ◽  
Low Pressure ◽  
Pressure Plasma ◽  
Low Pressure Plasma

scholarly journals Influence of Low-Pressure Plasma on the Surface Properties of CAD-CAM Leucite-Reinforced Feldspar and Resin Matrix Ceramics

2020 ◽  
Vol 10 (24) ◽  
pp. 8856
Author(s):  
Pablo Sevilla ◽  
Carlos Lopez-Suarez ◽  
Jesús Pelaez ◽  
Celia Tobar ◽  
Veronica Rodriguez-Alonso ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Plasma Treatment ◽  
Surface Properties ◽  
Ceramic Materials ◽  
Low Pressure ◽  
Resin Matrix ◽  
Ceramic Surface ◽  
Pressure Plasma ◽  
Plasma Treatments ◽  
Low Pressure Plasma

The introduction of new ceramic materials for dental restorations is currently a reality; however, little information is available on their surface treatment for the bonding process. Furthermore, surface treatment with plasma on ceramic materials has been recently introduced, although not many studies are available. The aim of this study was to evaluate the surface properties of a leucite-reinforced feldspar ceramic (LIC) and resin matrix ceramic (RMC) after low-pressure plasma treatment. From each material, 48 discs were prepared and subject to surface treatment. The LIC group was treated by hydrofluoric acid (HF) (LIC-HF), plasma with oxygen (LIC-O2), and plasma with argon (LIC-Ar). The RMC group was treated by sandblasting with alumina (RMC-SB), plasma with oxygen (RMC-O2), and plasma with argon (RMC-Ar). The groups whose surfaces were not subjected to treatment were considered as the control group. Surface wettability and roughness was analyzed. The results showed significant differences among the treatments for both ceramics regarding wettability and roughness. Plasma treatments increased the wettability and had a very low effect on the roughness. Plasma treatments achieved similar values for both surface properties in each ceramic group with no differences between both treatments. Plasma treatment seems to be a promising alternative for ceramic surface treatments since it increased the surface energy of the ceramics analyzed and hardly affects the roughness. Further studies are necessary to evaluate the effect of plasma treatment on the bond strength of ceramics.

Low pressure plasma treatment of poly(3-hydroxybutyrate): Toward tailored polymer surfaces for tissue engineering scaffolds

2001 ◽  
Vol 59 (4) ◽  
pp. 632-638 ◽  
Author(s):  
Mirko Nitschke ◽  
Gerhilt Schmack ◽  
Andreas Janke ◽  
Frank Simon ◽  
Dieter Pleul ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Plasma Treatment ◽  
Low Pressure ◽  
Polymer Surfaces ◽  
Tissue Engineering Scaffolds ◽  
Pressure Plasma ◽  
Low Pressure Plasma

scholarly journals Low-pressure plasma treatment applied to polymeric materials for a sustainable footwear industry

2020 ◽  
Author(s):  
Carlos Ruzafa-Silvestre ◽  
Pilar Carbonell-Blasco ◽  
Elena Orgiles-Calpena ◽  
Francisca Aran Ais
Keyword(s):  
Plasma Treatment ◽  
Polymeric Materials ◽  
Low Pressure ◽  
Material Surface ◽  
Efficient Technology ◽  
Adhesive Properties ◽  
Adhesion Properties ◽  
Chemical Surface ◽  
Pressure Plasma ◽  
Low Pressure Plasma

In this paper INESCOP proposes the improvement of the bonding of footwear soling materials using the low-pressure plasma surface treatment as a non-polluting and resource-efficient technology by means of adhesive bonds, with a reactive hot melt polyurethane adhesive, as a more sustainable alternative to current chemical surface treatments such as halogenation. More precisely, low-pressure plasma is capable of cleaning and removing all impurities, such as oxides, oils and fats on material surface. Then, it is activated by producing new chemicals species on the top layer of the substrate. Thus, the materials’ surface acquires new surface functionalities, improving the compatibility adhesive-substrate and, therefore their adhesion properties. Furthermore, in this work the surface modifications produced in these materials of different polymeric nature have been optimised to increase their roughness, wettability, adhesive properties, etc., and have been validated through various experimental characterisation techniques. As a result, the samples treated with plasma meet the adhesion requirements for footwear materials. As a result, low-pressure plasma treatment has desmonstrated to be a green, alternative, and sustainable technology in line with European policies on circular economy, which enhances material surface properties by improving the adhesion bonding process.

scholarly journals Improvement of liquid absorption properties of nonwoven polypropylene substrates by low pressure plasma treatment with CH4-O2 mixture gas

2012 ◽  
Vol 13 (9) ◽  
pp. 1139-1144 ◽  
Author(s):  
R. López ◽  
M. Pascual ◽  
D. García-Sanoguera ◽  
L. Sánchez-Nacher ◽  
R. Balart
Keyword(s):  
Plasma Treatment ◽  
Low Pressure ◽  
Absorption Properties ◽  
Pressure Plasma ◽  
Liquid Absorption ◽  
Low Pressure Plasma
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