Počet záznamů: 1
Wettability enhancement of polymeric and glass micro fiber reinforcement by plasma treatment
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SYSNO ASEP 0486261 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Wettability enhancement of polymeric and glass micro fiber reinforcement by plasma treatment Tvůrce(i) Trejbal, J. (CZ)
Šmilauer, V. (CZ)
Kromka, Alexander (FZU-D) RID, ORCID, SAI
Potocký, Štěpán (FZU-D) RID, ORCID
Kopecký, L. (CZ)Celkový počet autorů 5 Zdroj.dok. NANOCON 2015: 7th International Conference on Nanomaterials - Research and Application, Conference Proceedings. - Ostrava : TANGER, spol. s r.o., 2015 - ISBN 978-80-87294-63-5 Rozsah stran s. 315-320 Poč.str. 6 s. Forma vydání Online - E Akce NANOCON 2015. International Conference /7./ Datum konání 14.10.2015 - 16.10.2015 Místo konání Brno Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova plasma treatments ; cool oxygen plasma ; wettability ; contact angle ; micro fibers Vědní obor RIV BM - Fyzika pevných látek a magnetismus Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) Institucionální podpora FZU-D - RVO:68378271 UT WOS 000374708800055 EID SCOPUS 84962795016 Anotace Plasma treatments were used to modify surface properties of polyethylene terephthalate (PET) and glass micro fibers, to improve their wettability. PET fibers, having diameter of 400 μm, and glass fibers (14 μm) were exposed to low pressure oxygen plasma. A direct horizontal optical method was used for contact angle measurements on fiber surfaces submerged into distilled water. Surface morphology changes before and after treatment were characterized by scanning electron microscopy. Finally, cement paste specimens reinforced with PET and lime-based mortars reinforced with glass fibers were made and after 28 days of mixture curing tested by four-point bending tests. After oxygen plasma treatment contact angles decreased by 60 % on PET fibers and by 25 % on glass fibers in comparison with untreated fibers. Next, SEM images revealed the significant surface damages of PET fibers and minor damages of glass fibers. Both four-point tested samples reinforced with treated fibers exhibited the maximum bending strength loss about to 10 to 20 percent compared to samples with untreated reinforcement. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2018
Počet záznamů: 1