Dielectric barrier discharge activation and aging of polypropylene fibers for concrete reinforcement
| Název česky | Dielektrickým bariérovým výbojem vyvolaná aktivace a stárnutí polypropylénových vláken pro vyztužení betonu |
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| Autoři | |
| Rok publikování | 2013 |
| Druh | Článek ve sborníku |
| Konference | 19th SAPP - Symposium on Application of Plasma Processes, Book of Contributed Papers |
| Fakulta / Pracoviště MU | |
| Citace | |
| Obor | Fyzika plazmatu a výboje v plynech |
| Klíčová slova | DCSBD; Diffuse DBD; polypropylene; concrete reinforcement; Washburn test |
| Popis | Diffuse coplanar surface barrier discharge (DCSBD) and volume diffuse barrier discharge (VDBD) were used for continuous treatment of polypropylene yarn used for concrete reinforcement. The improvement of hydrophilicity and aging of effect was assessed via Washburn wicking test. The Washburn test is described in detail. Plasma treatment was able to reduce water contact angle from initial 86 deg to 46 deg, which is comparable to the value of 42 deg of commercial chemically treated samples. Saturation value of 75 deg was reached after 20 days of plasma treatment aging. The hydrophilization effect of investigated VDBD was slightly better than that of investigated DCSBD. |
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