Restrained Shrinkage Ring Test on Polymer Fibres Treated in Cold Plasma Discharge

2013 ◽  
Vol 464 ◽  
pp. 25-30 ◽  
Author(s):  
Daniel Kopkáně ◽  
Lenka Bodnárová ◽  
Rudolf Hela
Keyword(s):  
Low Temperature ◽  
Cold Plasma ◽  
Plasma Discharge ◽  
Ring Test ◽  
Cement Matrix ◽  
Restrained Shrinkage ◽  
Low Temperature Plasma ◽  
Polypropylene Fibres ◽  
Temperature Plasma ◽  
Positive Correlation

The paper refers to utilization of low temperature plasma discharge in air on polypropylene fibres. Such fibres have been tested in concrete as reinforcement. The effect has been tested by restrain ring test. The experiment proved positive correlation between time of exposure and cracks suppression. The effect is considered as improved cohesion of polymer fibres with cement matrix.

Design of Plasma Discharge Structure for Surface Treatment of PP Film

2016 ◽  
Vol 693 ◽  
pp. 77-83 ◽  
Author(s):  
Yi Fang Wen ◽  
Tai Yong Wang ◽  
Hong Wei Wang
Keyword(s):  
Low Temperature ◽  
Hollow Cathode ◽  
Plasma Discharge ◽  
High Energy ◽  
Environment Pollution ◽  
Low Temperature Plasma ◽  
Cathode Plasma ◽  
Temperature Plasma ◽  
Discharge Structure ◽  
Before And After

Low temperature plasma, compared to liquid phase treatment, can effectively overcome the environment pollution, high energy loss and high cost as its high activity. The low temperature plasma, which is not only fairly friendly to the environment but also of less resource consumption, also can realize the cleaning, activating and grafting treatment for materials surface. Based on the numerical model of CRFHCP (Capacitive Radio Frequency Hollow Cathode Plasma) hollow cathode plasma discharge, the key point to affect plasma discharge was analyzed and the morphology of PP film before and after hollow cathode plasma discharge was analyzed. The results showed that the structure of plasma hollow cathode discharge can effectively improved the chemical behaviors of PP film.

Application of Polypropylene Fibre with Various Surface Treatments in Concrete

2014 ◽  
Vol 1054 ◽  
pp. 75-79 ◽  
Author(s):  
Lenka Bodnárová ◽  
Petra Macháňová ◽  
Daniel Kopkáně ◽  
Petr Herka ◽  
Pavel Stahel
Keyword(s):  
Low Temperature ◽  
Surface Treatment ◽  
Polypropylene Fibre ◽  
Surface Treatments ◽  
Low Temperature Plasma ◽  
Polypropylene Fibres ◽  
Temperature Plasma ◽  
Experimental Works ◽  
Property Verification

The paper presents results of experimental works focused on property verification of concretes with an admixture of polypropylene fibres with various surface treatments. Common production polypropylene fibres with surface lubrication, polypropylene fibres without surface treatment and low temperature plasma treated polypropylene fibres were used for the testing.

scholarly journals The effect of treatment of barley grain and malt with low-temperature plasma discharge on the malt gushing potential

2018 ◽  
Vol 64 (6) ◽  
pp. 314-317
Author(s):  
Sylvie BĚLÁKOVÁ ◽  
Zbyněk HAVELKA ◽  
Andrea BOHATÁ ◽  
Ivo HARTMAN ◽  
Hana KÁBELOVÁ ◽  
...  
Keyword(s):  
Low Temperature ◽  
Plasma Discharge ◽  
Barley Grain ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Effect Of Treatment

scholarly journals The effect of low-temperature plasma discharge on mycotoxin content in barley and malt

2019 ◽  
Vol 65 (5) ◽  
Author(s):  
Zbyněk Havelka ◽  
Sylvie Běláková ◽  
Andrea Bohatá ◽  
Ivo Hartman ◽  
Hana Kábelová ◽  
...  
Keyword(s):  
Low Temperature ◽  
Plasma Discharge ◽  
Malting Barley ◽  
Low Temperature Plasma ◽  
Limit Of Quantification ◽  
Temperature Plasma ◽  
Gliding Arc ◽  
Mycoparasitic Fungi ◽  
Plant Metabolite ◽  
Barley Grains

This work deals with the possibility of elimination of common occuring mycotoxins deoxynivalenol (DON) and its plant metabolite deoxynivalenol-3-glucoside (D3G) from malting barley and malt by treatment of low-temperature plasma discharge. Barley seed was treated with a fungicide, entomopathogenic and mycoparasitic fungi and the low-temperature plasma discharge of Gliding Arc type, or their combination. Samples of harvested barley were treated with plasma discharge and analyzed for presence of mycotoxins. Only low DON and D3G concentration levels were detected (maximal values were 48.2 µg/kg and 30.2 µg/kg for DON and D3G, resp.), after plasma treatment mycotoxin content decreased onto the levels near limit of quantification. The results suggest that low-temperature Gliding Arc plasma discharge may contribute to reduction of the content of the mycotoxins in harvested barley grains.

scholarly journals Application of cold plasma to control the microbiota composition on the surface of potato tubers

2021 ◽  
Vol 265 ◽  
pp. 05011
Author(s):  
Mikhail L. Golovin ◽  
Valentina S. Orlova ◽  
Svetlana E. Mazina ◽  
Valery G. Yakunin ◽  
Sergei V. Kuznetsov ◽  
...  
Keyword(s):  
Low Temperature ◽  
Cold Plasma ◽  
Comparative Assessment ◽  
Growth Characteristics ◽  
Microbiota Composition ◽  
Low Temperature Plasma ◽  
Potato Tubers ◽  
Temperature Plasma ◽  
Bacteria And Fungi ◽  
Number Of Bacteria

A study of the effect of low-temperature plasma on potato tubers was carried out. A comparative assessment of changes in the rate of germination, the size of shoots and the mass of shoots was carried out. Changes in the number of bacteria and fungi on the surface of tubers were analysed for different durations of exposure. It was found that growth characteristics did not change. The number of bacteria on the surface of tubers was significantly reduced due to the exposure to low-temperature plasma.

A new low-temperature plasma discharge reactor for polymerisation of unsaturated compounds

2003 ◽  
Vol 174-175 ◽  
pp. 597-600 ◽  
Author(s):  
T. Dwars ◽  
H. Fuhrmann ◽  
J. Ehlbeck ◽  
M. Maaß ◽  
G. Oehme
Keyword(s):  
Low Temperature ◽  
Plasma Discharge ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Unsaturated Compounds

On the low-temperature plasma discharge in methane/air diffusion flames

Energy ◽  
2020 ◽  
Vol 197 ◽  
pp. 117185
Author(s):  
Saeid Zare ◽  
Hao Wei Lo ◽  
Shrabanti Roy ◽  
Omid Askari
Keyword(s):  
Low Temperature ◽  
Diffusion Flames ◽  
Plasma Discharge ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Air Diffusion
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