Počet záznamov: 1
The influence of selected components of essential oils on the mechanical and optical properties of the lignocellulose materials
Názov The influence of selected components of essential oils on the mechanical and optical properties of the lignocellulose materials Aut.údaje Ondřej Mikala Autor Mikala Ondřej Zdroj.dok. Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. Roč. 57, č. 2 (2015), s. 81-88. - Zvolen : Technická univerzita vo Zvolene, 2015 Poznámky Lit. Jazyk dok. angličtina Krajina Slovenská republika Systematika 539.55 Heslá lignocelulózové materiály - lignocellulose materials * esenciálne oleje - essential oils * optické vlastnosti - optical properties * mechanické vlastnosti - mechanical properties * ohybová tuhosť - bending stiffness Anotácia The degradation of cellulose and lignocellulose materials is done by several ways. Some examples could be the hydrolytic cleavage of glycoside bonds, oxidation, photo-oxidation, photolysis and biological attack. The biological attack on cellulose and lignocellulose materials can be caused by bacteria or fungi (moulds). This work is focused on the possibility of using vapours of the selected essential oils or their components to protecting archival materials against biological attacks. Essential oils with the highest bactericidal activity were used. Before use in a real environment, it was necessary to prove whether vapours of these active compounds do not degrade cellulose and lignocellulose materials in the library depositories. For testing of mechanical and optical properties after the exposition in saturated vapours of the active compounds were selected sheets based on the following materials: coniferous sulphate pulp, deciduous sulphate pulp, sulphite pulp, groundwood and pulp for the production of handmade paper. It has been proven that saturated vapours of 7 compounds, which we had tested, had a negative effect on the mechanical properties especially of groundwood material. Change in optical properties is reflected by slight colour variation with a maximum value of 1.41 when applying mixtures of substances no. 2 (limonene, eucalyptol, ocimene) on the material for production of handmade paper. URL https://df.tuzvo.sk/sites/default/files/08-02-15_1.pdf Báza dát xcla - ČLÁNKY Druh dok. RBX - rozpis článkov z periodík Odkazy PERIODIKÁ-Súborný záznam periodika Zväzky 2015: 1-2 
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Počet záznamov: 1