Effect of low temperature air plasma treatment on physico-chemical properties of kaolinite

Authors

  • Lubomir Lapcik Center of Polymer Systems, Tomas Bata University in Zlin, Faculty of Technology, Czech Republic and Tomas Bata University in Zlin, Faculty of Technology, Dept. Food Technology and Microbiology, Czech Republic
  • Ivo Krasny Tomas Bata University in Zlin, Faculty of Technology, Dept. Food Technology and Microbiology, Czech Republic
  • Ivana Kupska Tomas Bata University in Zlin, Faculty of Technology, Dept. Food Technology and Microbiology, Czech Republic
  • Barbora Barbora Lapcikova Center of Polymer Systems, Tomas Bata University in Zlin, Faculty of Technology, Czech Republic and Tomas Bata University in Zlin, Faculty of Technology, Dept. Food Technology and Microbiology, Czech Republic

DOI:

https://doi.org/10.3384/wcc2/364-367

Abstract

It was found in this study that air plasma treatment of particular kaolinite has led to the change of its wettability. This was reflected in the decreased values of water contact angles of wetting. There were determined yield locus and flow function dependencies at different stress levels for virgin and different time plasma treated samples (flow index - ffc, effective angle of internal friction - phie, unconfined yield strength - sigmac). It was found that by plasma treatment the character of the flow was shifting from region of very cohesive (ffc = 2.39) to the cohesive (ffc = 3.19). For untreated samples effective angle of internal friction was decreased with increasing applied consolidation stress, while for plasma treated kaolinite it was increased.

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Published

2013-03-04

How to Cite

1.
Lapcik L, Krasny I, Kupska I, Barbora Lapcikova B. Effect of low temperature air plasma treatment on physico-chemical properties of kaolinite. PSE [Internet]. 2013 Mar. 4 [cited 2021 Dec. 9];2(13):364-7. Available from: https://wcc.ep.liu.se/index.php/PSE/article/view/469