Time depend wettability deterioration of plasma treated polymeric macro-fibers

0497040 - FZÚ 2019 RIV CH eng C - Conference Paper (international conference)
Trejbal, J. - Tesárek, P. (ed.) - Potocký, Štěpán
Time depend wettability deterioration of plasma treated polymeric macro-fibers.
Contemporary Materials and Technologies in Civil Engineering. Zurich: Trans Tech Publications Ltd, 2017 - (Ryparová, P.; Tesárek, P.), s. 43-48. Key Engineering Materials, 731. ISBN 978-303571138-7. E-ISSN 1662-9795.
[Conference on Nanomaterials and Nanotechnology in Civil Engineering /5./. Praha (CZ), 15.06.2016-15.06.2016]
Institutional support: RVO:68378271
Keywords : polymeric fibers * reinforcement * plasma * wettability
OECD category: Fluids and plasma physics (including surface physics)

Presented work is focused on the time depend wettability deterioration of plasma treated polymeric macro-fibers. The commercial fibers designed especially for reinforcement of concrete composites were surface modified by oxygen ICP to attain their water wettability enhancement. The wettability development of thus treated fibers was observed through contact angle sizes between fiber surfaces and distilled water using a direct horizontal optical static method. Contac angle measurements were realized within one month after the treatment, while fibers were stored on the air on standard laboratory condition in the meantime. Both, the treated Concrix ES and BeneSteel fibers exhibited significant wettability increase. The enhanced wettability of modified fibers stayed approximately constant even after 30 days over the treatment execution in the case of BeneSteel, while in the case of Concrix ES the wettability decreased almost to the reference samples, respectively.

Permanent Link: http://hdl.handle.net/11104/0289650