Experimental investigation into the effect of adhesion properties of PEEK modified by atmospheric pressure plasma and low pressure plasma

2010 ◽  
Vol 118 (1) ◽  
pp. 173-179 ◽  
Author(s):  
Sangeeta Jha ◽  
Shantanu Bhowmik ◽  
Nitu Bhatnagar ◽  
Nayan Kamal Bhattacharya ◽  
Utpal Deka ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Low Pressure ◽  
Adhesion Properties ◽  
Pressure Plasma ◽  
Low Pressure Plasma

scholarly journals Seed Disinfection Effect of Atmospheric Pressure Plasma and Low Pressure Plasma on Rhizoctonia solani

2014 ◽  
Vol 19 (2) ◽  
pp. 99-102 ◽  
Author(s):  
TERUMI NISHIOKA ◽  
YUICHIRO TAKAI ◽  
MITSUO KAWARADANI ◽  
KIYOTSUGU OKADA ◽  
HIDEO TANIMOTO ◽  
...  
Keyword(s):  
Rhizoctonia Solani ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Low Pressure ◽  
Pressure Plasma ◽  
Low Pressure Plasma ◽  
Seed Disinfection

scholarly journals Surface activation of High Impact Polystyrene substrate using dynamic atmospheric pressure plasma

2019 ◽  
Vol 4 (1) ◽  
pp. 80-87
Author(s):  
Gergely Juhász ◽  
Miklós Berczeli ◽  
Zoltán Weltsch
Keyword(s):  
Surface Treatment ◽  
Atmospheric Pressure ◽  
Adhesive Bonding ◽  
Atmospheric Pressure Plasma ◽  
Theoretical Background ◽  
Surface Treatments ◽  
Surface Adhesion ◽  
Adhesion Properties ◽  
Pressure Plasma ◽  
Plasma Surface Treatment

Over the last decade, the number of researches has increased in the field of bonding technologies. Researchers attempt to improve surface adhesion properties by surface treatments. Adhesive bonding is one of these bonding techniques, where it is important to see what surfaces will be bonded. One such surface property is wetting, which can be improved by several types of surface treatment. In recent years, atmospheric pressure plasmas have appeared, with which research is ongoing on surface treatments. In our research, we will deal with the effects of plasma surface treatment at atmospheric pressure and its measurement. In addition, we summarize the theoretical background of adhesion, surface tension and surface treatment with atmospheric pressure plasma. Our goal is to improve adhesion properties and thus the adhesion quality.

scholarly journals Functionalization of Neutral Polypropylene by Using Low Pressure Plasma Treatment: Effects on Surface Characteristics and Adhesion Properties

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 202 ◽  
Author(s):  
Chiara Mandolfino ◽  
Enrico Lertora ◽  
Carla Gambaro ◽  
Marco Pizzorni
Keyword(s):  
Surface Morphology ◽  
Photoelectron Spectroscopy ◽  
Polymeric Materials ◽  
Low Pressure ◽  
Contact Angles ◽  
Bonded Joints ◽  
Water Contact ◽  
Adhesion Properties ◽  
Pressure Plasma ◽  
Low Pressure Plasma

Polyolefins are considered among the most difficult polymeric materials to treat because they have poor adhesive properties and high chemical barrier responses. In this paper, an in-depth study is reported for the low pressure plasma (LPP) treatment of neutral polypropylene to improve adhesion properties. Changes in wettability, chemical species, surface morphology and roughness of the polypropylene surfaces were evaluated by water contact angle measurement, X-ray photoelectron spectroscopy and, furthermore, atomic force microscopy (AFM). Finally, the bonded joints were subjected to tensile tests, in order to evaluate the practical effect of changes in adhesion properties. The results indicate that plasma is an effective treatment for the surface preparation of polypropylene for the creation of bonded joints: contact angles decreased significantly depending on the plasma-parameter setup, surface morphology was also found to vary with plasma power, exposure time and working gas.

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.

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