Alkaline Treatment of Straw for Composite Material Production and Its Impact on Water Vapor Adsorption Characteristics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00378085" target="_blank" >RIV/68407700:21110/25:00378085 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.32604/jrm.2024.056984" target="_blank" >https://doi.org/10.32604/jrm.2024.056984</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.32604/jrm.2024.056984" target="_blank" >10.32604/jrm.2024.056984</a>

Result language
angličtina
Original language name
Alkaline Treatment of Straw for Composite Material Production and Its Impact on Water Vapor Adsorption Characteristics
Original language description
The effect of using 2% and 10% sodium hydroxide solution as surface treatment of rape straw on its water vapor adsorption properties is analyzed in the relative humidity (RH) range of 0% to 98%. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and Fourier-transform infrared spectroscopy (FTIR) are used to investigate the morphological, chemical and structural changes of the treated straw surface. The mineral particles formed on the surface after the treatment are analyzed using X-ray diffraction (XRD). The application of sodium hydroxide solution results in the disruption of the straw surface. As the concentration of sodium hydroxide increases, the disruption of the straw surface increases, and the ability of the straw to adsorb water vapor also increases over the entire RH range. In addition to the surface disruption and chemical changes caused by the alkaline treatment, the differences in the equilibrium moisture content of treated and untreated rape straw can also be attributed to the formation of minerals on the straw surface, namely calcite for the 2% sodium hydroxide solution, and gaylussite and thermonatrite for the 10% solution.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project
<a href="/en/project/GA20-12166S" target="_blank" >GA20-12166S: Characterization of composite materials based on surface-modified rapeseed straw and environmentally-friendly adhesives</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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