Wettability Enhancement of Polymeric and Glass Micro Fiber Reinforcement By Plasma Treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F15%3A00302293" target="_blank" >RIV/68407700:21720/15:00302293 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/15:00302293 RIV/68378271:_____/15:00486261

Výsledek na webu

<a href="http://www.nanocon.eu/files/proceedings/23/papers/4376.pdf" target="_blank" >http://www.nanocon.eu/files/proceedings/23/papers/4376.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Wettability Enhancement of Polymeric and Glass Micro Fiber Reinforcement By Plasma Treatment

Popis výsledku v původním jazyce

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 mu m, and glass fibers (o14 mu m) 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. The samples reinforced with untreated PET fibers exhibited the deflection-softening, while the samples with plasma treated fibers deflection-hardening.

Název v anglickém jazyce

Wettability Enhancement of Polymeric and Glass Micro Fiber Reinforcement By Plasma Treatment

Popis výsledku anglicky

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 mu m, and glass fibers (o14 mu m) 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. The samples reinforced with untreated PET fibers exhibited the deflection-softening, while the samples with plasma treated fibers deflection-hardening.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

NANOCON 2015: 7TH INTERNATIONAL CONFERENCE ON NANOMATERIALS - RESEARCH & APPLICATION - Conference Proceedings

ISBN

978-80-87294-63-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

315-320

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

14. 10. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000374708800055