Paropropustnost kompozitních materiálů s obsahem textilních vláken
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Date
2022-05-31
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Abstract
Diplomová práce se zabývá návrhem kompozitu s geopolymerní matricí, vyztuženou textilními odpadními vlákny pro možné využití ve stavebnictví. Kromě pevnosti, která je důležitou veličinou pro stavebnictví, jsme se zaměřili hlavně na testování propustnosti vodních par navržených kompozitů. Nejprve jsme vyvinuli metodiku výroby vzorků, na měření paropropustnosti byly vyrobeny kruhové vzorky, zatímco pro měření mechanických vlastností byly vyrobeny vzorky ve speciální silikonové formě. Takto vyrobené vzorky byly testovány na ohybovou pevnost, a především na propustnost vodních par. Pro měření propustnosti vodních par jsme vycházeli z metody Wet Cup popsané v normě ČSN ISO 12572. Kromě výztužných odpadních vláken jsme vyrobili geopolymerní kompozity s vybranými chemickými plnivy za účelem zrychlení pohybu vody uvnitř geopolymeru a tím zvýšení propustnosti pro vodní páry. Výsledky byly poté porovnány s paropropustnými materiály, které se již ve stavebnictví používají.
The diploma thesis focus is to design of a composite with a geopolymer matrix, reinforced with textile waste fibers for possible use in the building industry. In addition to strength, which is an important variable for the construction industry, we focused mainly on testing the water vapor permeability of the designed composites. First, we developed a methodology for the production of samples, circular samples were made to measure vapor permeability, while samples in a special silicone mold were made to measure mechanical properties. The samples produced in this way were tested for flexural strength, and especially for water vapor permeability. We used the Wet Cup method described in the ČSN ISO 12572 standard to measure water vapor permeability. In addition to reinforcing waste fibers, we produced geopolymer composites with selected chemical fillers in order to accelerate the movement of water inside the geopolymer and thus increase water vapor permeability. The results were then compared with vapor-permeable materials already used in the building industry.
The diploma thesis focus is to design of a composite with a geopolymer matrix, reinforced with textile waste fibers for possible use in the building industry. In addition to strength, which is an important variable for the construction industry, we focused mainly on testing the water vapor permeability of the designed composites. First, we developed a methodology for the production of samples, circular samples were made to measure vapor permeability, while samples in a special silicone mold were made to measure mechanical properties. The samples produced in this way were tested for flexural strength, and especially for water vapor permeability. We used the Wet Cup method described in the ČSN ISO 12572 standard to measure water vapor permeability. In addition to reinforcing waste fibers, we produced geopolymer composites with selected chemical fillers in order to accelerate the movement of water inside the geopolymer and thus increase water vapor permeability. The results were then compared with vapor-permeable materials already used in the building industry.
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Geopolymer, polypropylenová vlákna, paropropustnost, pevnost v ohybu, stavebnictví, kompozit, Geopolymer, polypropylene fibers, water vapor permeability, strength, construction, composite