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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/GA20-12166S" target="_blank" >GA20-12166S: Charakterizace kompozitních materiálů na bázi povrchově modifikované řepkové slámy a ekologicky šetrných lepidel</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Renewable Materials

ISSN

2164-6325

e-ISSN

2164-6341

Svazek periodika

13

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

21

Strana od-do

363-383

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85218977903