Enhancing Interface Reactions by Introducing Microbubbles into a Plasma Treatment Process for Efficient Decomposition of PFOA

2021 ◽  
Author(s):  
Han Zhang ◽  
Pan Li ◽  
Ai Zhang ◽  
Zhuyu Sun ◽  
Jinxia Liu ◽  
...  
Keyword(s):  
Plasma Treatment ◽  
Treatment Process ◽  
Interface Reactions

scholarly journals Treatment of wood with atmospheric plasma discharge: study of the treatment process, dynamic wettability and interactions with a waterborne coating

Holzforschung ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Jure Žigon ◽  
Matjaž Pavlič ◽  
Pierre Kibleur ◽  
Jan Van den Bulcke ◽  
Marko Petrič ◽  
...  
Keyword(s):  
Plasma Treatment ◽  
Treatment Process ◽  
Beech Wood ◽  
Treated Wood ◽  
Plasma Discharge ◽  
Contact Angles ◽  
Atmospheric Plasma ◽  
Waterborne Coating ◽  
Spruce Wood ◽  
The Impact

AbstractPlasma treatment is becoming a mature technique for modification of surfaces of various materials, including wood. A better insight in the treatment process and the impact of the plasma on properties of wood bulk are still needed. The study was performed on Norway spruce and common beech wood, as well as their thermally modified variations. The formations of the airborne discharge, as well as mass changes of the treated wood, were monitored. The impact of such treatment on wood-coating interaction was investigated by evaluating the dynamic wettability and penetration into wood. At the wood surface, plasma streamers were observed more intense on denser latewood regions. Wood mass loss was higher with increasing number of passes through the plasma discharge and was lower for thermally modified wood than for unmodified wood. Plasma treatment increased the surface free energy of all wood species and lowered the contact angles of a waterborne coating, these together indicating enhanced wettability after treatment. Finally, the distribution and penetration depth of the coating were studied with X-ray microtomography. It was found that the coating penetrated deeper into beech than into spruce wood. However, the treatment with plasma increased the penetration of the coating only into spruce wood.

High-performance spin-coated aluminum oxide dielectric fabricated by a simple oxygen plasma-treatment process

2018 ◽  
Vol 51 (36) ◽  
pp. 365101 ◽  
Author(s):  
Jinglin Wei ◽  
Zhiqiang Fang ◽  
Junbiao Peng ◽  
Wei Cai ◽  
Zhennan Zhu ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Plasma Treatment ◽  
High Performance ◽  
Oxygen Plasma ◽  
Treatment Process ◽  
Oxygen Plasma Treatment

scholarly journals Change of energy state in the surface layer at the stages of vacuum ion-plasma treatment process

2016 ◽  
Vol 729 ◽  
pp. 012011
Author(s):  
V V Plikhunov ◽  
L M Petrov
Keyword(s):  
Surface Layer ◽  
Plasma Treatment ◽  
Treatment Process ◽  
Energy State ◽  
Ion Plasma

Surface Modification on Polyurethane of Bio-Electrodes Implanted for Deep Brain

2011 ◽  
Vol 697-698 ◽  
pp. 450-453
Author(s):  
G. Qin ◽  
Ya Xiong Liu ◽  
Z.X. Bai ◽  
H.Y. Wang ◽  
R.K. Du
Keyword(s):  
Immune Response ◽  
Surface Modification ◽  
Plasma Treatment ◽  
Brain Tissue ◽  
Treatment Process ◽  
Electrode Materials ◽  
Polymerization Reaction ◽  
Amino Groups ◽  
Deep Brain

For bio-electrodes implanted in deep brain, electrode materials will affect the fibrous encapsulation formed on the interface of bio-electrodes and brain tissue which would reduce the operating effect of the bio-electrodes. To reduce or eliminate the fibrous encapsulation layer, N2/H2 plasma treatment process is used to modify the polyurethane which is the most materials of the bio-electrode. The amino groups are produced on the polyurethane surface. After these amino groups have a polymerization reaction with the polypeptide molecule, a layer of the polypeptide molecule is formed on the polyurethane surface of the bio-electrode. These modified bio-electrodes are implanted in the deep brain of the rats for two weeks to observe the immune response and the morphology of the cells on the interface of the bio-electrodes. The results of the experiments indicate that the polypeptide molecules on the polyurethane can improve the immune response of the cells and affect the growth of the fibrous encapsulation on the interface of the bio-electrodes.

scholarly journals Формирование сверхтвердых покрытий в процессе обработки низкотемпературной плазмой азота в открытой атмосфере пленок титана

2021 ◽  
Vol 47 (9) ◽  
pp. 44
Author(s):  
М.Х. Гаджиев ◽  
Р.М. Эмиров ◽  
А.Э. Муслимов ◽  
М.Г. Исмаилов ◽  
В.М. Каневский
Keyword(s):  
Low Temperature ◽  
Plasma Treatment ◽  
High Resistance ◽  
Treatment Process ◽  
Nitrogen Plasma ◽  
Rutile Structure ◽  
Open Atmosphere ◽  
High Productivity ◽  
Sapphire Substrates ◽  
Superhard Coatings

Results of the formation of superhard coatings in the low-temperature nitrogen plasma treatment process in the open atmosphere of titanium films on sapphire substrates are given. It is shown that during plasma treatment a coating of nitrogen-containing TiO2 with rutile structure is formed with a double increase (in comparison with rutile TiO2) of microhardness (up to 27 GPa). The application of this coating leads to hardening of the surface of sapphire plates by 22-23%. High productivity and implementation of synthesis in an open atmosphere make it possible to consider the proposed procedure is promising for the production of superhard coatings with high resistance to oxygen.

Mold Compound Adhesion Reliability with SiN and SiON Passivation

2011 ◽  
Vol 2011 (1) ◽  
pp. 000729-000734
Author(s):  
Varughese Mathew ◽  
Sheila Chopin ◽  
Trent Uehling ◽  
Ruzaini Ibrahim
Keyword(s):  
Plasma Treatment ◽  
Treatment Process ◽  
Argon Plasma ◽  
Temperature Cycling ◽  
Surface Groups ◽  
Molding Process ◽  
Before And After ◽  
Sims Analysis ◽  
Scanning Acoustic Microscope ◽  
Better Than

Delamination of mold compounds under thermal stress conditions such as Air-to-Air Temperature Cycling (AATC) (−55°C −125° C) was studied for two passivation surfaces; SiN and SiON using C-Mode Scanning Acoustic Microscope (CSAM) and electrical testing for different intervals up to 2000 cycles. Both passivation surfaces were treated with oxygen-argon plasma prior to the molding process. It is found that SiN surface performed better than SiON electrically and without showing any delamination for the mold compound studied. Both passivation surfaces were analyzed for various surface groups by TOF-SIMS analysis immediately before and after the pre-mold plasma treatment process. Different surface groups such as CH, NH etc. were identified, but the major difference was found in the OH intensity. Fraction of OH is significantly increased after plasma treatment for SiN surface while it is decreased for SiON surface. It is inferred that OH group can play a role in enhancing the mold compoundpassivation adhesion and hence provide better delamiantion resistance.

scholarly journals The effect of plasma treatment process on the electrical conductivity and coating fastness of silver nanoparticles functionalized aramid fiber paper

2021 ◽  
Author(s):  
Guanglu Li ◽  
Zhenhua Sun ◽  
Songwei Gao ◽  
Yawen Wang ◽  
Shaojuan Chen ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Silver Nanoparticles ◽  
Plasma Treatment ◽  
Treatment Process ◽  
Aramid Fiber
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